plagiarism checker online for thesis

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How to avoid plagiarism?

Proper citation style.

Avoid plagiarism by always listing the source and formatting it correctly when you are note-taking. Take care of the proper formatting and citation style when using content from outside sources.

Write on your own

Avoid borrowing and overusing large pieces of the content from outside sources, especially from Wikipedia. Write your own thoughts and use sources only to support your opinion (remember to cite it though!).

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Plagiarism Checker Review

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Online Plagiarism Checker For Students

Writing an academic paper can be challenging when you’re not sure if it’s original enough to pass a plagiarism check. Of course, students take information from various sites before writing their own text. Sometimes, it just so happens that certain parts are very similar to your resources, making your professor think that you’ve just copied work from somewhere. That’s why it’s crucial for any modern college or university student to ensure that their work has 100% original content to maintain academic integrity.

Luckily, a free plagiarism checker online can solve this issue quickly and easily. Many cheap essay writing services use a plagiarism checker for research paper. However, students sometimes forget that they should too. But with so many options that pop up when you ask Google to “check my paper for plagiarism”, how do you choose the right one for detection? We’ve got the solution in the form of PapersOwl’s free plagiarism checker tool! Our simple tool makes it convenient to check any writing task without having to spend a dime. It works quickly and highly accurately, ensuring that you get the top grade you deserve. So, if you want to check plagiarism online before turning your task in, head over to our website and get started!

Accurate Check for Plagiarism with Percentage

Many students wishing to produce original content aren’t quite sure how to get an exact percentage of plagiarised text in their work. This percentage is important since many universities have a certain limit of non-unique words you can have in your essay for it to be considered okay. If your plagiarism search doesn’t give you the exact percentage, you can’t be sure if your assignment will go through or not.

When using a free plagiarism tool, it’s essential to have this data provided to you. Only when you have it can you decide which parts to change and which ones to chuck out to achieve your desired results. Plagiarized content is a big issue in modern educational institutions, so getting reliable and trustworthy results is vital. This is the most essential requirement when you check plagiarism.

PapersOwl’s plagiarism detection tool gives you all the information you need to fix plagiarized content. Whether you’ve fallen victim to accidental plagiarism or have tried to make your life easier by copying some text from different sources, you’ll get an accurate percentage with our plagiarism checker online. If you’re wondering how to check paper for plagiarism, it’s nothing complicated at all! Simply visit our site, paste your whole essay into the relevant text box or upload the text file, click on Check For Plagiarism, and you’ll get accurate plagiarism results in a matter of seconds. You’ll see the problematic parts with plagiarism detected highlighted, with links to where similar content exists. Our service with plagiarism detector will also give you the option to check my essay for plagiarism and then to hire a professional paper writer to fix your task quickly if you're busy with other things!

The Fastest Plagiarism Checker Online

Gaining insight into duplicate content only works if you get your results quickly. There are so many free plagiarism software online that promise to do the job for you. However, a lot of them are clunky, slow, and inaccurate. How can you produce original work without similarity detection you can trust?

PapersOwl stands out in this regard because it will detect plagiarism in seconds. This is a plagiarism scanner that’s able to perform a Swift Check to give you a uniqueness check right there and then. It also conducts a Deep Search, going through millions of sources on the internet to check for plagiarism. A document of about 1500 words takes only about 10 seconds to get processed! You get a clear plagiarism score of how much text is plagiarized and how much is original. All the sources that your essay matches are listed based on how much similarity there is in your academic writing. And on top of that, you get a handy Make It Unique button that’ll take you to an order page where you can ask our expert writers to rewrite your work and make it 100% unique.

All of this is done almost instantly, allowing students to continue do assignments without missing a beat. Not every plagiarism detection software works this quickly, making ours the best one you’ll ever use.

Plagiarism Checker Helps Boost Your Grade

A lot of students make the mistake of considering their papers automatically free from plagiarism. After all, they’ve written it themselves, so how could it be problematic? What they don’t realize is that it’s very easy to borrow some information mistakenly. Turning such a paper in can cause multiple problems, as your professor might think you haven’t done the work at all.

That is why you should always use a plagiarism scanner to test for plagiarized content in your college papers. Our online plagiarism checker for students is designed for this exact purpose. A simple, free plagiarism check could help you check plagiarism, fix any mistakes you see, and submit high-quality text that no one will question.

Our plagiarism detector has a lot going for it. It makes plagiarism detection easier than ever before. Unlike copying and pasting each passage individually into Google, simply upload the whole file into our plagiarism checker free for students, and you don’t have to do anything else. All the matches are highlighted so you know what to change.

The plagiarism test will give you a uniqueness percentage too. This will help you figure out where you stand and how much time you need to adjust anything if required. So, using our copyright checker online free to check your writing is essential. This way, you’ll submit the task only when you’re sure it meets the level of uniqueness required by your school. As a result, your grades will drastically improve when you check for plagiarism.

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How Does Plagiarism Checker Work?

• If you already have a completed text, all you need is just to copy-paste the whole thing in the special box of the chosen plagiarism tool or website, choose suitable settings (if any), then press “check for plagiarism”. It is quite simple and takes just a few moments.
• Once you have pressed “check for plagiarism”, the system will analyze your text and compare it with different sources to find similarities. As a rule, the duration depends on the text’s length. A standard free online plagiarism checker with percentage can give you the result within five minutes or less.
• When the system finishes the work you will be transmitted to the reporting page – it contains the comprehensive report on your work, a percentage of its uniqueness, and a list of sources on which similarities were detected. Often, such tools also highlight the overlaps that were found.

As you can see, it is simple. However, for the best and reliable result you have to be careful. There are tons of programs and online tools that can be used but keep in mind that many of them work differently and not all are good for you. To be confident in the truthfulness of the received result, you need to select the best plagiarism checker because only a professional and high-quality software can detect all similarities and give you a reasoned assessment.

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Advantages Of Plagiarism Checker By PapersOwl

Why choose us? Our service offers a professional online plagiarism checker with report that will provide you with a comprehensive report to make you confident in the 100% uniqueness of your paper. Our free plagiarism checker for students guarantees the best check and here are the key advantages of using our tool that prove this:

You don’t need to pay anything to check your paper for plagiarism because we know the value of original and unique works.

One of the main benefits of our antiplagiat checker online is that it works so fast that you will not even have enough time to make yourself a cup of coffee while it analyzes your text, and it is safe!

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It is simple in use and won’t take much time!

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Plagiarism Checker FAQ

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Trusted Online Plagiarism Checker For Students and Academics

Avoid accidental plagiarism in your academic text with Paperpal’s accurate online plagiarism checker, in partnership with Turnitin.

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• Industry-leading plagiarism prevention check Get a similarity score, side-by-side comparisons, and color-coded results. Avoid accidental or self-plagiarism with Paperpal’s plagiarism checker, in partnership with Turnitin.
• Instant comparison against billions of sources Scan your academic text against Turnitin’s database of 99 billion webpages, including 200 million Open Access research articles, to detect similar phrasing and synonym swapping in minutes.
• Access to our all-in-one academic writing toolkit Paperpal Prime gives you full access to our paraphrasing tool, language checks, and more so you can quickly address issues flagged by the plagiarism checker software.

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Maintain Academic Integrity with the Best Plagiarism Checker Tool

Achieve writing excellence with our secure, reliable online plagiarism checker

Paperpal plagiarism checker helps you produce high-quality, original writing by identifying missed citations or similar phrases. This minimized the risk of academic penalties, such as suspension for accidental plagiarism.

Use our plagiarism checker to maintain high academic standards and promote integrity in the classroom. It also helps to streamline grading, identify potential plagiarism, and guide students on proper citation practices.

Rely on our trusted plagiarism checker software to avoid desk rejections due to prevent accidental and self-plagiarism. It is an essential step to help you ensure authenticity, maintain credibility, and protect your reputation.

Paperpal Offers More Than An Online Plagiarism Checker

Paperpal Prime provides comprehensive language correction, paraphrasing, and generative AI writing capabilities to transform your academic writing.

Use Rewrite to paraphrase content and add variety, achieve an academic tone, and reduce length to achieve clear, concise, impactful academic writing.

Leverage in-depth grammar checks that quickly identify and correct spelling, punctuation, and complex language and grammar errors in minutes.

Access our suite of secure generative AI features designed to help you overcome writer’s block and deliver high-quality, original content, every time.

Paperpal’s Plagiarism Checker - Frequently Asked Questions

How can i access paperpal’s online plagiarism checker, how many pages or words can i check per month, what software is being used to detect similarity, what database is my writing checked against, how do i interpret the similarity score, why did i get a high similarity score after polishing language with paperpal using copilot’s ai-generated text, can paperpal ensure that my content is not flagged by plagiarism or ai detection tools, my paper is completely original. why is my similarity score so high, what types of documents can i upload, are my documents stored and added to turnitin’s database, understand plagiarism and ethical writing.

Want to master the basics of ethical academic writing and avoid accidental plagiarism when using AI tools? Check out these curated articles on plagiarism and ethical academic writing guidelines!

Self-plagiarism in research: What it is and how to avoid it

Self-plagiarism in research should be strictly avoided. Yet, it’s quite common to find early career researchers, and sometimes even experienced scholars...

The Do’s & Don’ts of Using Generative AI Tools Ethically in Academia

Generative AI has ushered in a new era of possibilities, redefining the way we create content, analyze data...

Addressing Your Queries on AI Ethics, Plagiarism, and AI Detection

The integration of artificial intelligence (AI) tools into the academic writing process has sparked numerous debates...

Top 5 ethical considerations in research

While research is based on the pillars of innovation, trust, and transparency, it also requires scientists and academics...

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Thesis Checker: Free Online Editor

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Why should you use an online thesis checker?

You’ve already done countless hours of research to write your thesis. You don’t want to spend countless hours correcting it, too.

You’ll sound professional

Wow your supervisors with how grammatically sound your writing is, how clear it is, and how well it flows.

You’ll save time

You’ll become a better writer.

Every time you run your thesis through ProWritingAid, you’ll see what your common mistakes are and how to fix them.

Professors and students love using ProWritingAid

Great tool for academic work. Easy to use and the reports and summary evaluation of your documents in several categories is very useful. So much more than spelling and grammar!

Debra Callender

If you’re an English teacher, you need to take a look at this tool—it reinforces what you’re teaching, highlights strengths and weaknesses, and makes it easier to personalize instruction.

Jennifer Gonzales

Only reason I managed to get an A in all my freshmen composition classes.

Chris Layton

Your first line of defense before submission

Save time on editing so you can focus on your research. ProWritingAid’s thesis checker helps you quickly and easily improve your grammar and style.

Academic writing made easier

Stop stressing over your first draft. Now you can improve any sentence in just a few clicks. Shorten sentences , correct informal language, expand your sentence variety, and add transitions.

Catch every easy-to-miss mistake

Typos and grammar errors can slip into anyone’s work. ProWritingAid’s AI-powered thesis checker can catch and fix even the trickiest issues so your ideas can shine.

In-depth analysis whenever you need it

Sure, that email might only need a cursory check. But a 100-page thesis needs more comprehensive reviews. Use our structure analysis , complex paragraph alerts , and transitions report to improve your work.

Write clearly, concisely, and accurately

Strike the right balance between clarity and academic rigor with analytical language goals and power verb suggestions . You can ensure your work is professional without sacrificing readability.

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Want more? Join our community or read our blog for advice from our resident experts on how to become a better writer.

ProWritingAid’s Thesis Checker FAQs

1. how do i use the online thesis checker.

Sign up for free, upload your thesis, and run any of ProWritingAid’s 25+ reports. You’ll see a number of suggestions that you can either accept or reject.

2. Does the essay checker work with British English and American English?

The thesis checker works with British English, American English, Australian English, and Canadian English. Just choose the one you’d like to use, and ProWritingAid will tailor its suggestions to match.

3. Is using a thesis checker cheating?

Not at all. The thesis checker won’t ever write the thesis for you. It will only point out possible edits and advise you on changes you need to make. You have full autonomy and can decide which changes to accept.

4. Is there a student discount?

Students who have an eligible student email address can get 20% off ProWritingAid Premium. Email [email protected] from your student email address to access your discount.

5. Can ProWritingAid check my thesis for free?

Absolutely. ProWritingAid offers a free membership to everyone, always, and you can edit up to 500 words at a time. If you need to edit more work, you can upgrade to Premium at any time.

6. Does ProWritingAid have a plagiarism checker?

Yes! ProWritingAid’s plagiarism checker will check your work against over a billion web-pages, published works, and academic papers, so you can be sure of its originality. Find out more about pricing for plagiarism checks here .

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Free plagiarism checker by EasyBib

Check for plagiarism, grammar errors, and more.

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Check for accidental plagiarism

Avoid unintentional plagiarism. Check your work against billions of sources to ensure complete originality.

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"I find the suggestions to be extremely helpful especially as they can instantly take you to that section in your paper for you to fix any and all issues related to the grammar or spelling error(s)."

- Catherine R.

Check for unintentional plagiarism

Easily check your paper for missing citations and accidental plagiarism with the EasyBib plagiarism checker. The EasyBib plagiarism checker:

• Scans your paper against billions of sources.
• Identifies text that may be flagged for plagiarism.
• Provides you with a plagiarism score.

You can submit your paper at any hour of the day and quickly receive a plagiarism report.

What is the EasyBib plagiarism checker? 

Most basic plagiarism checkers review your work and calculate a percentage, meaning how much of your writing is indicative of original work. But, the EasyBib plagiarism checker goes way beyond a simple percentage. Any text that could be categorized as potential plagiarism is highlighted, allowing you time to review each warning and determine how to adjust it or how to cite it correctly.

You’ll even see the sources against which your writing is compared and the actual word for word breakdown. If you determine that a warning is unnecessary, you can waive the plagiarism check suggestion.

Plagiarism is unethical because it doesn’t credit those who created the original work; it violates intellectual property and serves to benefit the perpetrator. It is a severe enough academic offense, that many faculty members use their own plagiarism checking tool for their students’ work. With the EasyBib Plagiarism checker, you can stay one step ahead of your professors and catch citation mistakes and accidental plagiarism before you submit your work for grading.

Why use a plagiarism checker? 

Imagine – it’s finals week and the final research paper of the semester is due in two days. You, being quite familiar with this high-stakes situation, hit the books, and pull together a ten-page, last-minute masterpiece using articles and materials from dozens of different sources.

However, in those late, coffee-fueled hours, are you fully confident that you correctly cited all the different sources you used? Are you sure you didn’t accidentally forget any? Are you confident that your teacher’s plagiarism tool will give your paper a 0% plagiarism score?

That’s where the EasyBib plagiarism checker comes in to save the day. One quick check can help you address all the above questions and put your mind at ease.

What exactly is plagiarism? 

Plagiarism has a number of possible definitions; it involves more than just copying someone else’s work. Improper citing, patchworking, and paraphrasing could all lead to plagiarism in one of your college assignments. Below are some common examples of accidental plagiarism that commonly occur.

Quoting or paraphrasing without citations

Not including in-text citations is another common type of accidental plagiarism. Quoting is taking verbatim text from a source. Paraphrasing is when you’re using another source to take the same idea but put it in your own words. In both cases, it’s important to always cite where those ideas are coming from. The EasyBib plagiarism checker can help alert you to when you need to accurately cite the sources you used.

Patchwork plagiarism

When writing a paper, you’re often sifting through multiple sources and tabs from different search engines. It’s easy to accidentally string together pieces of sentences and phrases into your own paragraphs. You may change a few words here and there, but it’s similar to the original text. Even though it’s accidental, it is still considered plagiarism. It’s important to clearly state when you’re using someone else’s words and work.

Improper citations

Depending on the class, professor, subject, or teacher, there are multiple correct citation styles and preferences. Some examples of common style guides that are followed for citations include MLA, APA, and Chicago style. When citing resources, it’s important to cite them accurately. Incorrect citations could make it impossible for a reader to track down a source and it’s considered plagiarism. There are EasyBib citation tools to help you do this.

Don’t fall victim to plagiarism pitfalls. Most of the time, you don’t even mean to commit plagiarism; rather, you’ve read so many sources from different search engines that it gets difficult to determine an original thought or well-stated fact versus someone else’s work. Or worse, you assume a statement is common knowledge, when in fact, it should be attributed to another author.

When in doubt, cite your source!

Time for a quick plagiarism quiz! 

Which of the following requires a citation?

• A chart or graph from another source
• A paraphrase of an original source
• Several sources’ ideas summarized into your own paragraph
• A direct quote
• All of the above

If you guessed option E than you’d be correct. Correct punctuation and citation of another individual’s ideas, quotes, and graphics are a pillar of good academic writing.

What if you copy your own previous writing?

Resubmitting your own original work for another class’s assignment is a form of self-plagiarism, so don’t cut corners in your writing. Draft an original piece for each class or ask your professor if you can incorporate your previous research.

What features are available with the EasyBib plagiarism checker? 

Along with providing warnings and sources for possible plagiarism, the EasyBib  plagiarism checker works alongside the other EasyBib tools, including a grammar checker  and a spell checker . You’ll receive personalized feedback on your thesis and writing structure too!

The  plagiarism checker compares your writing sample with billions of available sources online so that it detects plagiarism at every level. You’ll be notified of which phrases are too similar to current research and literature, prompting a possible rewrite or additional citation. You’ll also get feedback on your paper’s inconsistencies, such as changes in text, formatting, or style. These small details could suggest possible plagiarism within your assignment.

And speaking of citations, there are also  EasyBib citation tools  available. They help you quickly build your bibliography and avoid accidental plagiarism. Make sure you know which citation format your professor prefers!

Great! How do I start? 

Simply copy and paste or upload your essay into the checker at the top of this page. You’ll receive the first five grammar suggestions for free! To try the plagiarism checker for free, start your EasyBib Plus three-day free trial.* If you love the product and decide to opt for premium services, you’ll have access to unlimited writing suggestions and personalized feedback.

The EasyBib plagiarism checker is conveniently available 24 hours a day and seven days a week. You can cancel anytime.  Check your paper for free today!.

*See Terms and Conditions

Visit www.easybib.com for more information on helpful EasyBib writing and citing tools.

For informational guides and on writing and citing, visit the EasyBib guides homepage .

Prevent plagiarism, run a free plagiarism check.

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• Best Free Plagiarism Checkers

10 Best Free Plagiarism Checkers | Tested & Reviewed

Published on January 8, 2024 by Koen Driessen . Revised on July 10, 2024.

To find the best free plagiarism checker, we extensively tested and reviewed all popular tools to answer questions like, “How much plagiarism can they detect?” and “Are they actually free?”

Table of contents

Research methodology, general conclusions: free vs. paid checkers, 1. scribbr review, 2. quetext review, 3. duplichecker review, 4. small seo tools review, 5. pre post seo review, 6. grammarly review, 7. plagiarism detector review, 8. check-plagiarism.com review, 9. search engine reports review, 10. plagiarismchecker.co review, frequently asked questions about plagiarism checkers.

The plagiarism tools in this research are tested using 4 test documents , ranging from unedited to heavily edited.

Each test document consisted of plagiarized sections from 140 sources like Wikipedia articles, news articles, open-access journal articles, websites, theses and dissertations, and PDFs.

This setup allowed us to analyze:

• The reliability of plagiarism checker tools, even when texts are edited to varying degrees
• The depth and breadth of the tools’ content databases (whether they only covered websites or also journal articles)

Read more about the research methodology

We found that free tools were frequently misleading in their advertising and were lacking in many ways compared to paid ones. Our research led to these conclusions:

• Offers a limited free version
• Finds far more plagiarism than other tools
• Detects plagiarism even in edited texts
• Won’t store or sell your documents
• Money-back happiness guarantee, with live support available
• Self-Plagiarism Checker feature allows you to check for self-plagiarism
• You need to go premium to find out your precise similarity score and view the entire report

Scribbr offers a limited free version that’s perfect for checking if your paper contains potential plagiarism. To view the full report, you need to buy the premium version, which costs between $19.95 and $39.95 depending on the word count. There’s no word limit, so you can upload as big a document as you want.

Quality of matches

Scribbr’s checker, developed in partnership with Turnitin, heavily outperformed all free and paid tools in terms of the amount of plagiarism detected: 83% vs. an average of 42% across free tools.

It performed particularly well with source types relevant to students, such as journal articles and dissertations. Importantly, Scribbr was far more successful than other tools at detecting plagiarism in heavily edited texts, showing it has no trouble with paraphrasing plagiarism.

Scribbr could also consistently provide full matches instead of partial ones, matching the whole plagiarized passage to the correct source.

You see your results in a straightforward downloadable report. Different sources are highlighted in different colors, making it more readable.

The issues identified can be fixed with Scribbr’s Citation Generator , generating correctly formatted citations wherever they are needed.

In addition, Scribbr offers a Self-Plagiarism Checker . This unique tool allows users to upload their own unpublished documents in addition to the public database, to detect any possible self-plagiarism.

However, you can’t edit your text directly in the tool, and it’s not possible to re-check your document for free.

Trustworthiness

Scribbr will not store, sell, or share your uploaded documents. Data is automatically deleted after 30 days, or students can opt to manually delete their document after the check.

Live customer support is offered in multiple languages to assist users. A guide and other resources explaining plagiarism issues are easily accessible.

Scribbr also has a happiness guarantee: if you’re not satisfied with the tool for any reason, you can ask for a new check or a refund.

Check out Scribbr

• Built-in citation assistant helps to add missing citations
• Documents not stored in database
• Support options available (but no live support)
• Finds partial matches
• Not clear how the free trial works
• Monthly subscription of at least $8.25 after free trial
• Not effective for scholarly sources
• Doesn’t detect all plagiarism

Quetext offers a free trial of 500 words, after which users must pay for a premium plan.

Additionally, uploading files to Quetext is a Pro feature. If you don’t pay, you’ll have to copy-paste the text from your document instead.

The paid version costs at least $8.25 per month (more expensive plans are available), which allows you to check up to 100,000 words.

Quetext detects more plagiarism (49% on average) than any free tool, but it’s unable to match each source text fully to a single source. Different sentences are attributed to different sources.

While Quetext claims to check against academic sources, we found it didn’t perform well at identifying plagiarism from sources such as journal articles and student dissertations.

Quetext’s plagiarism report is relatively straightforward to understand and provides a useful overview. A precise percentage is shown, with similarities in the text highlighted.

However, different sources are not highlighted in different colors, making the report somewhat difficult to read. Instead, orange highlighting is used for partial matches, red for full matches.

There’s also a built-in citation assistant that can help you fix plagiarism by adding citations. Unfortunately, it’s not very robust. Citations generated this way may not be accurate, and you have to add a lot of information manually.

Quetext states that it doesn’t save your text to a database and that all text submitted remains private and encrypted.

Information about the service is available in the form of FAQs on the website, and it’s also possible to contact the company by submitting a request form.

Check out Quetext

• Free (1,000 words per scan)
• Doesn’t save uploaded documents
• Relatively user-friendly reports
• Distracting ads for other services
• Low level of plagiarism detected
• Performs very poorly with edited text
• No color coding for different sources

DupliChecker’s service is free, though you can only upload 1,000 words at a time. If you go for one of their premium plans, you can go up to 25,000.

If you do want to upgrade, a large number of different premium plans are offered on the site, which can be somewhat confusing to navigate. The cheapest is $10 a month.

The level of plagiarism detected by DupliChecker was relatively low (44%).

While the tool was able to find some plagiarism, it was unable to find any full matches. Overall, it performed about as well as other checkers like Small SEO Tools.

DupliChecker’s website is unfortunately full of ads for their other services and for similar sites. A distracting animated “Make it unique” button appears in the report, advertising their rewriting tool.

In the online report, all plagiarized text is highlighted in one color, and it is difficult to figure out what source each source block is matched with.

The site claims not to save uploaded documents, and it deletes content after the check is complete to avoid data leakage. No live support is available, but there is a contact form on the website.

Check out DupliChecker

• Various options for document uploads
• Page is slow, somewhat confusing, and full of ads
• Scans individual sentences rather than full texts

Small SEO Tools is free to use, although you can only check 1,000 words at a time without paying.

You can run multiple checks if you need to scan more than that, although the site requires you to complete CAPTCHAs to upload multiple documents.

Small SEO Tools was unable to identify most plagiarism in our test documents, with an average of only 44%. Since it scans individual sentences separately, it was only ever able to produce partial matches.

Plagiarized text is highlighted (though all in one color), and you can click on it to be shown the source it was matched with.

The page is cluttered with a lot of ads that you can easily confuse with the buttons you need to press.

The report itself is relatively clear. While plagiarized text is highlighted in one color, the tool clearly links matched text with the source identified for it.

Small SEO Tools claims not to store your content after checking it. You don’t have to register to use the tool. Users can also contact a support email to request their personal data be erased.

Check out Small SEO Tools

• 1,000-word upload limit
• Color-coded highlighting
• Some full matches
• Citation assistant
• Live support option
• Detects a low proportion of plagiarism
• Report is hard to read
• Messy, ad-heavy page design
• Color coding doesn’t distinguish between different sources

It’s unclear whether Pre Post SEO is actually a free tool. While the website claims there’s a search query limit for visitors, the limit is not clearly specified and did not seem to apply when we tested our documents.

You can only scan up to 1,000 words per search and cannot see a complete list of matched sources (instead, you must check them manually). These limits are removed if you sign up for their premium plan, which costs $10 to $45 a month.

Pre Post SEO did find the occasional full match, but in most cases it was only able to find partial matches, like most free checkers. Overall, it performed about as well as tools like DupliChecker and Small SEO Tools.

The page where the checker is hosted is full of distracting and irrelevant ads, making the user experience frustrating.

A different color was used for verbatim plagiarism and paraphrasing plagiarism, but the tool’s judgment was often wrong. Other than that, the same color was used for different sources, which made the report hard to read.

Pre Post SEO states that it does not store or sell your documents. There is a live support option on the site and a form you can use to request support.

Check out Pre Post SEO

• Language and citation assistant available
• Does not sell or share documents with third parties
• Finds a relatively low percentage of plagiarism
• Same colors used for different sources

Despite the way it’s advertised, Grammarly’s checker is not free. All you can do is see a screen that tells you there’s plagiarism in your text without giving you any details of where it is, how much of it there is, or what the sources are.

After this you’ll be directed to download the Grammarly app and subscribe to their premium service ($30 per month). There’s a limit of 100,000 characters (about 20,000 words) even after paying.

Grammarly was able to find more full matches than most free tools. However, it performed particularly poorly with academic sources and received a low percentage overall, scoring a total of 40%.

As a premium service, Grammarly has a clearer and more visually appealing style than most free checkers. The original formatting of the document remains mostly intact, but the tool uses the same color for all sources, making the results hard to parse.

The subscription also gets you a language and style tool and a citation assistant.

Grammarly does not store, sell, or share documents with third parties.

The site provides a support page with tips, tutorials, and FAQs, and you can submit a question via a form. Live support is not available.

Check out Grammarly

• Free to use (1,000-word limit)
• Does not store or sell your document
• Technical issues with long documents
• Difficult to match text with sources in the report
• Different sources highlighted in the same color

Plagiarism Detector is free to use and users do not need to register. However, there is a limit of 1,000 words per document. By paying, you can raise this limit to 25,000 words per document.

Plagiarism Detector’s performed about as well as other 100% free tools (40%).

The tool was mostly only able to find partial matches, attributing individual sentences to one or more sources.

Plagiarism Detector’s reports are somewhat difficult to read. The same colors are used for different sources, and hovering over a plagiarized section doesn’t show you the source. Instead, you need to find it in a separate list.

Plagiarism Detector states that it will not store or sell your documents. No live support is available, but there is a help request form.

Check out Plagiarism Detector

• Offers a citation generator
• Difficult to match text with sources in the downloadable report
• Scans sentence by sentence —rarely gets a full match

It’s unclear whether Check-plagiarism.com is actually free. The site describes the free upload limit in a confusing way, allowing you a certain number of “queries” (sentences) per month. However, these limits are not clearly specified and did not seem to apply when we tested our documents.

Check-plagiarism.com performed slightly worse than most 100% free tools, scoring a total of 39%.

While the tool was able to find some full matches, it mostly found partial matches.

The same color was used for different sources, which made the report hard to read. A different color was used for verbatim plagiarism and paraphrasing plagiarism, but the tool was often wrong.

You can check up to 1,000 words at once for free. 

In the downloadable report, the format of the text is mostly retained. The report provides a long list of sources that are difficult to cross-reference with the text above.

The version of the report shown on the site itself is slightly better, as a box next to the plagiarized text allows you to see the text identified as the source. There is a “rewrite” function, along with a (manual) citation tool.

Check-plagiarism.com claims that the reports generated on their site are “highly secured and un-accessible.”

There are some FAQs listed on the site, but the answers provided are not very clear. They have live messaging support along with a contact form.

Check out Check-plagiarism.com

• Genuinely free for most purposes (1,000-word upload limit)
• Lots of distracting ads
• Unable to find most of the plagiarism
• Same highlight colors for different sources

Search Engine Reports is free to use, and users do not need to register. However, there is a limit of 1,000 words per scan. By paying, you can raise this limit to 30,000 words per scan.

The methodology this tool uses to find matches appears highly unreliable. It seems to simply search Google for each sentence in your document, counting it as plagiarism if it finds a match.

It identified only a low proportion of the plagiarism (38%) in our test documents. Due to its methodology, it was usually unable to find full matches, and it performed particularly poorly with scholarly sources such as dissertations and journal articles.

The report shown on the site gives a list of individual sentences marked as plagiarized or original. You can click a link next to each source, but all it does is google the sentence in question. The downloadable report highlights plagiarism within the text and shows a list of sources, but it doesn’t clearly link each sentence with a source.

There is also a language statistics function that lets you see words that appear frequently in the text to help limit repetition.

Search Engine Reports claims not to store any uploaded content in their database. There is no live support, but there is a contact form.

Check out Search Engine Reports

• Uploaded documents not stored/sold
• Detects a very low amount of plagiarism
• Misleading about costs—only free for five documents
• Low word limit of 800
• Lots of distracting ads and pop-ups

The tool claims it’s free, but it actually only allows you to upload five documents before requiring you to sign up for one of their many premium plans. These documents have an unusually low word limit of 800.

The premium plans offer options to increase (but not remove) this word limit. The cheapest is $15 per month, which only increases the limit to 1,000 words—a limit many other tools offer for free.

Plagiarismchecker.co gave some of the worst results out of all the checkers we tested, with an average of 30%. It was never able to provide a full match for a source text, only partial.

The tool is frustrating to use due to the high number of ads it displays and the low word limit.

The downloadable report sometimes didn’t include the plagiarism percentage, making it impossible to know how much of the text was plagiarized/original.

The report itself is difficult to read. All plagiarized text is highlighted in one color and is not clearly matched with the source identified for it.

The site claims that uploaded content is not stored in a database or shared with others. It also claims that “our advanced AI-powered algorithm ensures that your content must be protected under the copyright laws.” It’s not clear what this means.

While the site claims to have 24-hour support, there is no live support. There is a contact form on the site.

Check out Plagiarismchecker.co

Yes, Scribbr offers a limited free version of its plagiarism checker in partnership with Turnitin. It uses Turnitin’s industry-leading plagiarism detection technology and has access to most content databases.

Run a free plagiarism check

If you’re a university representative, you can contact the sales department of Turnitin .

Plagiarism can be detected by your professor or readers if the tone, formatting, or style of your text is different in different parts of your paper, or if they’re familiar with the plagiarized source.

Many universities also use plagiarism detection software like Turnitin’s, which compares your text to a large database of other sources, flagging any similarities that come up.

It can be easier than you think to commit plagiarism by accident. Consider using a plagiarism checker prior to submitting your paper to ensure you haven’t missed any citations.

The accuracy depends on the plagiarism checker you use. Per our in-depth research , Scribbr is the most accurate plagiarism checker. Many free plagiarism checkers fail to detect all plagiarism or falsely flag text as plagiarism.

Plagiarism checkers work by using advanced database software to scan for matches between your text and existing texts. Their accuracy is determined by two factors: the algorithm (which recognizes the plagiarism) and the size of the database (with which your document is compared).

Your document will be compared to the world’s largest and fastest-growing content database , containing over:

• 99.3 billion current and historical webpages.
• 8 million publications from more than 1,700 publishers such as Springer, IEEE, Elsevier, Wiley-Blackwell, and Taylor & Francis.

Note: Scribbr does not have access to Turnitin’s global database with student papers. Only your university can add and compare submissions to this database.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Driessen, K. (2024, July 10). 10 Best Free Plagiarism Checkers | Tested & Reviewed. Scribbr. Retrieved August 21, 2024, from https://www.scribbr.com/plagiarism/best-free-plagiarism-checker/

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Scribbr Plagiarism Checker

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• Used by 925 students in the last 24 hours.
• Largest plagiarism database.
• Detailed and easy plagiarism report.

Your plagiarism report within 10 minutes

How it works.

Upload a Microsoft Word, PDF or ODT file of your paper, enter your details and pay.

2. Wait a few minutes

Your document is compared to billions of web pages, books, articles and more. This may take a few minutes.

3. Receive the report

Similarities are highlighted and matched to the source. You also receive a plagiarism score.

4. Fix plagiarism

Add missing citations or rewrite your text. Our award-winning Knowledge Base can help you.

Frequently asked questions

No, the Self-Plagiarism Checker does not store your document in any public database.

In addition, you can delete all your personal information and documents from the Scribbr server as soon as you’ve received your plagiarism report.

Scribbr’s Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker , namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases .

The add-on AI detector is powered by Scribbr’s proprietary software.

Extensive testing proves that Scribbr’s plagiarism checker is one of the most accurate plagiarism checkers on the market in 2022.

The software detects everything from exact word matches to synonym swapping. It also has access to a full range of source types, including open- and restricted-access journal articles, theses and dissertations, websites, PDFs, and news articles.

At the moment we do not offer a monthly subscription for the Scribbr Plagiarism Checker . This means you won’t be charged on a recurring basis – you only pay for what you use. We believe this provides you with the flexibility to use our service as frequently or infrequently as you need, without being tied to a contract or recurring fee structure.

You can find an overview of the prices per document here:

Please note that we can’t give refunds if you bought the plagiarism check thinking it was a subscription service as communication around this policy is clear throughout the order process.

Your document will be compared to the world’s largest and fastest-growing content database , containing over:

• 99.3 billion current and historical webpages.
• 8 million publications from more than 1,700 publishers such as Springer, IEEE, Elsevier, Wiley-Blackwell, and Taylor & Francis.

Note: Scribbr does not have access to Turnitin’s global database with student papers. Only your university can add and compare submissions to this database.

Scribbr’s plagiarism checker offers complete support for 20 languages, including English, Spanish, German, Arabic, and Dutch.

The add-on AI Detector and AI Proofreader are only available in English.

The complete list of supported languages:

If your university uses Turnitin, the result will be very similar to what you see at Scribbr.

The only possible difference is that your university may compare your submission to a private database containing previously submitted student papers. Scribbr does not have access to these private databases (and neither do other plagiarism checkers).

To cater to this, we have the Self-Plagiarism Checker at Scribbr. Just upload any document you used and start the check. You can repeat this as often as you like with all your sources. With your Plagiarism Check order, you get a free pass to use the Self-Plagiarism Checker. Simply upload them to your similarity report and let us do the rest!

Your writing stays private. Your submissions to Scribbr are not published in any public database, so no other plagiarism checker (including those used by universities) will see them.

Plagiarism Checker by Quetext

Free plagiarism checker: how it works, enter text into plagiarism detection tool.

We make it simple. Just copy and paste all content from your document into our plagiarism checker and hit the ‘Check Plagiarism’ button to get started.

Evaluate text for plagiarism

Our plagiarism detection tool uses DeepSearch™ Technology to identify any content throughout your document that might be plagiarized. We identify plagiarized content by running the text through three steps:

• 1.) Contextual Analysis
• 2.) Fuzzy Matching
• 3.) Conditional Scoring

Accurate plagiarism results

After evaluating the text against billions of internet sources, you will be provided with a plagiarism score showing the percentage of text that is an exact or near-match to existing text online.

Resolve plagiarism risk and use citations

Our ColorGrade™ feedback feature highlights exact matches vs. near-exact or “fuzzy” matches with corresponding colors. From there, you can resolve plagiarism issues by deleting or altering the at-risk copy. Or, you can use our handy “Cite Source” feature to generate citations in MLA, APA, and Chicago formats and insert the citations directly into your document.

Plagiarism Checker Benefits

Whether producing original content or verifying that of others, there’s a lot to gain from using a plagiarism checker. Accurate, automatic detection of duplicate content facilitates the copy-checking process for teachers, students, content writers, and more. Results showing the exact percentage of plagiarized content allows users to see exactly how much text has been copied and where they need to re-word.

For Teachers

Before homework can be graded for quality, it must first be confirmed as original. Our easy-to-use tool arms teachers with a simple, effective way to verify and grade students’ work. Educators at all levels can benefit from ensuring academic integrity through a comprehensive plagiarism check. From K-12, all the way through higher education, teachers are faced with the task of verifying the originality of the work of dozens, if not hundreds, of students each year. Automating this process frees teachers up to focus on the quality of work, rather than be bogged down by its originality.

For Students

While the prevalence of academic plagiarism is on the rise, much of it is arguably unintentional. A simple, yet accurate and comprehensive, plagiarism checker offers students peace of mind when submitting written content for grading. It is much easier to do a quick check for potential plagiarism before submission rather than convince a teacher after the fact that your academic integrity is not in question. And Quetext even takes checking for plagiarism a step further, helping students identify and cite the source itself with our built-in citation generator.

For Copywriters

Plagiarism risk is not restricted to academia. Anyone tasked with writing for an individual or business has an ethical and legal responsibility to produce original content. On top of that, content writers are often tasked with producing content on topics outside of their wheelhouse, leaving them reliant on the work of others for their research. Our plagiarism checker gives content writers a quick and easy method to prevent copyright infringement. Checking even lengthy pieces of writing takes only a few minutes, keeping companies’ public content in check and writers’ integrity intact.

Types of Plagiarism

It’s important to understand that plagiarism expands far beyond just copying someone else’s work word-for-word. There are several different types of plagiarism that should be avoided.

Self-Plagiarism

Many believe that, as long as they produced the work at some point in the past, they can include it in future pieces. However, even if you were the original author, that original work must be cited in order to not be flagged as plagiarism. Treat your past self as a totally separate author; be sure to include all relevant citations and quotations, the same as you would for any other source.

Patchwork Plagiarism

Patchwork plagiarism is the act of piecing together a "patchwork" of existing content to form something new. Assembling unoriginal content in this manner often involves some paraphrasing, with only slight changes. This type of plagiarism can be tricky and can certainly occur unintentionally, especially in academia. Since academic writing is largely based on the research of others, a well-meaning student can inadvertently end up plagiarizing.

Mosaic Plagiarism

Mosaic plagiarism is synonymous with patchwork plagiarism. It describes the process of loosely rearranging or restating another's work without issuing proper credit. It can occur accidentally or intentionally. For authors, mosaic plagiarism endangers their academic integrity or reputation as a writer. For those checking content originality, such as teachers, mosaic plagiarism can easily appear to be original content, which can make mosaic plagiarism especially difficult to detect manually.

Accidental Plagiarism

Plagiarism doesn’t have to be intentional to still be considered plagiarism — even in early academia, where students are just learning how to properly cite others’ work. While there may be no ill intent from the student, most schools have policies explicitly treating accidental plagiarism the same as intentional plagiarism. Students are expected to know how to properly issue credit to other authors. Similarly, content writers risk damage to their reputation if they produce plagiarized content, regardless of intent.

Plagiarism Checker FAQ

What is plagiarism.

Plagiarism is representing someone else’s work as your own. In educational contexts, there are differing definitions of plagiarism depending on the institution. Plagiarism is considered a violation of academic integrity and a breach of journalistic ethics.

What percentage of a paper can be plagiarized (or copied) and still be considered unique?

Generally speaking, similar or exact copies of another source should be kept under 15% for the total text of the article/paper/essay. As a best practice, citations should be used whenever using another source word-for-word.

What’s the difference between deliberate and accidental plagiarism?

Deliberate plagiarism is purposely copying works from books, articles, webpages, or someone else’s paper and representing it as your original work. Alternatively, accidental plagiarism occurs in a few different ways:

• Incorrectly citing another person’s works
• Failing to paraphrase another person’s works - even when citing it correctly
• Reusing your own previous papers and inadvertently representing it as a new idea

What are the consequences of plagiarism?

The consequences for plagiarizing another person’s works vary. But broadly speaking, the types of consequences can be grouped by person and profession.

Plagiarism consequences for students

Maintaining academic integrity is a top priority for every educational institution. As already mentioned, ignorance of how to properly cite sources is not an excuse for plagiarism. It is the student’s responsibility to ensure they are submitting work that has not been plagiarized.

Failure to do so can result in disciplinary action, including an automatic failed grade, removal from a class, or expulsion from a school or university. Students who are allowed to continue at their institution following an act of plagiarism may encounter mistrust and additional scrutiny from teachers and instructors.

Plagiarism consequences for copywriters

Copywriters stake their reputation (and by extension, that of their client or company) on their writing. All copywriters must produce completely original content for their clients.

The consequences for plagiarism here are clear: Copywriters who plagiarize the content of others will quickly find it difficult to obtain paying assignments. Similar to academic situations, it is the copywriter’s own responsibility to ensure that their content is 100% original.

Plagiarism consequences for journalists

Journalists are held to exceptionally high standards of integrity in their writing. A journalist who produces plagiarized content jeopardizes the trust of their readers and publishers. Plagiarism can instantly reduce a journalist’s career by a large margin. The ethical and legal standards issued to journalists are clear: Produce original, well-cited content or find another field.

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Online Plagiarism Checker

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We detect synonyms, Character Replacement and Paraphrased plagiarism

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Noplag is one of the oldest, well-known and most trusted plagiarism detection services on the internet, which was established in 2014. Since then college students around the world, graduate and undergraduate students rely on Noplag Online Plagiarism Checker every day.

Plagiarism checker in students’ life is a necessity nowadays, as it not only helps students prepare for the module, exam or complete homework writing assignment but also educate students, how to write custom papers, motivates students to keep up with the Academic Integrity and not cheating by copying classmates essay or research paper but actually trying to write an original essay themselves.

Modern technology is evolving faster than we can imagine. Noplag free online plagiarism checker evolved from a simple online tool to a fully-featured writing assistance app and education resource for students and researchers. It’s no longer only about making your paper just original, you need a set of tools that can help you make your essay stand out, with proper argumentative or other topics for your Research Paper, Essay, Dissertation or Term paper. Online writing tools that can proofread your paper as you draft it online. To make sure you use the proper styles and reference all your studies and resources used for completing the writing assignment. It becomes almost impossible to cheat modern plagiarism checkers such as Turnitin and Noplag, and Noplag Plagiarism Checker’s goal is not to help students cheat the system, but help students learn how to write an original essay.

What a modern Plagiarism Checker should be capable of and How it Works

There are many online plagiarism checkers that claim to check your essay against billions of sources, when in fact all they check against is the Internet and they usually don't even check the full paper. Please beware when you use other online plagiarism checkers. As many of them provide not trustworthy results.

Turnitin and Noplag are one of the oldest and trustworthy plagiarism detection services who accumulated billions of documents from other students and thus able to provide the most accurate plagiarism detection results.

Noplag checks your essay or paper against the following databases:

• Academic Databases contain more than 2 Billions of essays, research papers, dissertations, thesis, bibliographies, topics, etc.
• Noplag checks against multiple Publication databases that contain more than 800 million works. A combination of private and public repositories eliminates possibilities that our system can miss something that was already submitted.
• Noplag Database is a huge collection of different academic papers, articles, and journals which are not available in public or private repositories. Currently, the Noplag database contains more than 50M files and its growing rapidly every minute.
• Internet Noplag has a unique algorithm capable of checking the entire web (5Bllion+ Pages) within just a few minutes. Most of the other services are using cached data when Noplag does live search against the whole Internet!

Grammar, Spell Checker and Writing Style guides have become another essential when writing your paper, essay or dissertation. Noplag Online Editor with Proofreading tools gives you super writing powers and saves a great deal of time, as you can fix the paper as you write it. Noplag Writing Tips and Guides is another great way to stay focused on your paper and know exactly what to write about next, as we provide you with Online Essay Templates that serve as a home tutor.

Another vital feature for every student is the Citation Guides, Assistance and Checker. You don't want to fail the assignment, just because your paper wasn't properly referenced. Noplag Citation Assitance comes along with a Plagiarism checker to save your paper from failing.

Noplag Library contains millions of examples that we happily share with students to help them get an idea and inspiration for their writing assignment, essay, paper. Hundred of thousand topics, essay samples will be a good jumpstart for students. To be the best, you have to learn from the best. Well, Noplag shared only A+ grades Essays and Topics to make sure you have the best examples for your custom paper.

Technology is what makes product Plagiarism checker different from other, fake plagiarism checkers. Noplag dedicated a great deal of time and resources to train artificial intelligence to detect the slightest possibility of cheating. That way you can make sure that your paper is 100% plagiarism free and can be safely submitted for review. Paraphrasing, Letter Replacement, Patchwork plagiarism, Synonyms and other popular methods that you usually used to cheat plagiarism checkers are becoming almost impossible with modern top-notch plagiarism detection services like Noplag.

As you can see plagiarism checker and detector is not the only tool that students need before they can submit their paper to the instructor or Turnitin. The process involves researching, studying, referencing, proofreading and checking for plagiarism multiple times. That would not be possible if students were to use only Turnitin. Noplag is a great Turnitin alternative used both by students, educators, and educational establishments. Noplag and Turnitin are using different internal databases which make it possible for students to check essays for plagiarism with Noplag multiple times before they submit it to the instructor, SafeAssign or Turnitin.

Noplag definitely deserves to be called one of the most respective, trusted and widely used plagiarism checker among students all over the world.

Whether you are a student overwhelmed with lots of academic writing, or a teacher overwhelmed with even greater amounts of writing to check, you certainly have to deal with plagiarism. You know it may be hard to find a plagiarism checker that is efficient, works fast and provides easy-to-understand results. Sometimes, one may feel like shouting, “A good plagiarism checker! My kingdom for a good plagiarism checker!” Contrary to the common assumption, a high quality plagiarism checker doesn’t have to cost you an arm and a leg – or your entire kingdom – but using a poor quality one really might. Accidentally lost or mismatched sources of research material, lacking or improper citations and attributions, and/or poor paraphrasing may cause you lots of trouble, but an efficient plagiarism detector that uses the latest multi-way scanning algorithms can alert you to these problems.

Accurate checks at a reasonable price – is this possible? It is, if you aim at creating a product that meets the needs of a variety of users, not just the ones with a considerable budget and lots of documents to scan for plagiarism on a regular basis. That's why an innovative Noplag online service was created with maximum effectiveness in mind, based on advanced algorithms of checking your texts against the Internet, public repositories and Noplag extensive database of academic papers. It is very fast, as compared to other plagiarism scanners, and provides a detailed plagiarism report that you can send and share. So don't let plagiarism issues slow you down any more, deal with them in the fastest and most effective way that modern technology provides!

Noplag offers:

• Plagiarism checker for universities/colleges/schools;
• Plagiarism checker for students/teachers/academics;
• Plagiarism checker for freelance writers, website owners, bloggers/journalists;

and anyone else wishing to find out if their written work contains plagiarism.

Everything that has once been problematic about plagiarism or its detection can be easily avoided today. Many people continue to carelessly think that plagiarism may be a problem, but it's not THEIR problem. We can agree, but this definition is missing one main component: a high quality plagiarism checker. If you are using a reliable, efficient and accurate service such as Noplag to check for plagiarism, and it provides fast, detailed, easy-to-interpret results, you can rest assured that plagiarism is not your problem.

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How to use Plagiarism Checker free?

To check plagiarism of your content by using our plagiarism detector online, follow the below instructions:

Type or paste your text into the input box.

Click on the “Check Plagiarism” button.

Check the results in the output section. You can also download the resultant file.

Our similarity checker will scan the given content against millions of online resources and generate an accurate plagiarism report with percentages. With Deep-Search technology, free plagiarism checker can also detect instances of plagiarism accurately.

AI Plagiarism Checker vs. Traditional Plagiarism Detector

The AI plagiarism checker utilizes advanced technologies to detect plagiarism from any kind of text accurately. It is designed to check plagiarism from content that has been tweaked using synonyms. In addition, the free plagiarism checker also possesses the ability to hunt instances of accidental plagiarism, as they are equally destructive to your credibility. On the other hand, a traditional plagiarism detector can only locate the phrases and sentences that have been copied word-to-word.

Features Offered By Our Plagiarism Detector

Check-Plagiarism offers a wide range of features to make the plagiarism detection process super-easy for its users. Some of its prominent features include the following:

Exclusive Database Access

The free online plagiarism checker provides access to an exclusive database that can detect plagiarism efficiently. It cross-checks your document against the data contained on billions of web pages which ensures 100% accurate analysis and detection of plagiarism.

Fast & Accurate

Our plagiarism checker scans your text against billions of web pages. The superfast AI technology shows you results in a matter of seconds.    

Content Duplication Highlight

This duplication checker highlights the plagiarized content in red color to make it easier for you to check for plagiarism in your work.

100% Safe & Secure

All files and documents checked with our free plagiarism checker online are 100% safe & secure. We do not save or share your data with any third party.    

Multiple files support

You can check copied content in up to five documents at once (supported formats: doc, docx, txt, and pdf).

Easy to Use

Our online plagiarism checker has a very easy-to-use interface. It provides a simple process to check for content similarities. Users from low educational backgrounds can also use our plagiarism checker.    

Enhanced Reporting with the percentage

Our plagiarism detector provides a complete report with percentages. It shows you to check which phrases in your content are unique and which are plagiarized which is beneficial for reporting.

Sentence based checking

Our copyright checker scans every single sentence and compares it with all online resources to detect plagiarism. So not even a single sentence will escape plagiarism scanning.

Reports Sharing

After the plagiarism check, you can get a detailed plagiarism report that you can easily share wherever you want.  

Exclude or Include any URL for Duplication

If you want to check plagiarism in your published content, you can simply copy the URL of the web page and conduct a duplication test.

Content Comparison

The AI plagiarism checker offers an advanced feature that compare documents for plagiarism . If you are having doubts about the assignments submitted by learners, you can upload their documents to this tool and figure out if they have replicated content from one another.

  Relevant Tools

• Paraphrasing Tool
• Article Rewriter
• Word Count & Character Count
• Citation Generator
• Plagiarism Comparison Search
• Grammar Checker
• Text Summarizer

Free Plagiarism Checker Online Users

Our online plagiarism checker is widely used and loved by thousands of students, teachers, and content writers. We provide super-fast plagiarism detection solutions for colleges, universities, and all other educational institutes.

Students use it to check their papers, assignments and thesis for plagiarism. Plagiarised content is considered a form of academic dishonesty. This means that if a student submits a paper that includes plagiarized material, they could face serious consequences , such as failing the assignment or the entire course or even being expelled from school.

Teachers use our free plagiarism checker to ensure that their students are submitting original work. Our originality checker can help teachers quickly identify plagiarism in student work so they can take appropriate action.

By using our plagiarism detector, teachers can

Ensure academic integrity: By checking for plagiarism, teachers can ensure that their students are submitting original work and not cheating.

Promote original thinking: teachers can encourage their students to think critically and independently to develop their ideas.

Prevent grade inflation: If plagiarized work is undetected, it can lead to grade inflation that can damage the integrity of the institution. Check-Plagiarism also provides matched sources, so it helps to cite sources in your document. Use our citation generator to create APA, MLA, and Chicago formats.

Writers use this plagiarism detector:

To ensure originality:

Our originality checker helps writers to ensure that their work is original and not copied from other sources.

To identify and correct mistakes:

Writers can identify and correct any unintentional mistakes, such as failing to properly cite a source.

To improve credibility:

Authors can establish their credibility as trustworthy sources of information by making sure their work is original.

Webmasters use this originality checker to make sure their content is plagiarism-free because

• Plagiarized content can damage the reputation and credibility of a website.
• Google has clear policies on plagiarized content and penalizes websites that contain copied content.
• It can lead to legal problems If the original content is protected by copyright.

Educational institutes

Colleges and universities can integrate our tool using Plagiarism APIs .

Law firms can use plagiarism checker free to protect their clients' documents.

Check more details about how to avoid plagiarism .

Frequently Asked Questions

  what is considered plagiarism.

"According to Oxford: “Plagiarism is presenting someone else’s work or ideas as your own, with or without their consent, by incorporating it into your work without full acknowledgment.”

It involves:

1. Copying and pasting someone else's text

2. Paraphrasing someone else's work without proper attribution

3. Using someone else's ideas without giving them credit

4. Using someone else's images, videos, or other media without permission

5. Submitting someone else's work, such as a paper or project, as your own

  Is it plagiarism if you copy and paste but cite the source?

Presenting someone’s idea as your own is considered plagiarism. If you copy and paste but cite the source with proper formatting, then it's not plagiarism.

  Is the usage of plagiarism detector Illegal?

Educational institutions highly recommend any plagiarism detector to prevent copying of others’ work. Even research work is not considered authoritative without a plagiarism test. So, using an originality report checker is legal and necessary.

  What Devices Does the Plagiarism Checker Online Support?

The plagiarism checker online supports all kinds of devices, including desktops, laptops, and mobile devices. Since it’s a web-based utility, you can access and use it from any browser by just connecting to a stable internet connection.

  Is there a Word Limit for Checking Plagiarism?

Yes! There is a limit of 1000 words for checking plagiarism. However, if your document contains more words, then you can divide it into parts and conduct multiple checks, as there is no limit to the number of times you can check for plagiarism.

  Does The Online Plagiarism Checker Support Multiple Languages?

Yes! The plagiarism checker supports multiple languages, including English, Indonesian, French, Dutch, Russian, German, and Swedish.

  How Secure is the Plagiarism Detector in Terms of Data Privacy?

Plagiarism Detector is 100% safe and secure in terms of data privacy. Once a plagiarism check is processed, the content is automatically removed from our database.

  Can the Plagiarism Checker Detect Paraphrased Content?

Yes! This advanced AI plagiarism checker is smart enough to detect content that has been paraphrased from another source. Its AI-based technology allows it to detect patterns and language similarities to figure out whether a piece of text is 100% unique or rephrased from existing content.

  Is this Plagiarism Checker Detect Plagiarism in Multiple Documents?

Yes! The plagiarism checker is capable of detecting plagiarism in multiple documents.

We Cover Multiple Platforms

Our plagiarism-checking process supports one of the most popular platforms, WordPress. You can check for plagiarism of your content directly from your WordPress admin panel. Just download our plagiarism checker free plugin and start using it. Check Plagiarism also supports educational institutions through our APIs. Universities, colleges, and other educational institutes & organisations can integrate our APIs to detect plagiarized content on their end. Our plagiarism tool works accurately on other platforms as well.    

A WordPress plugin is available to check plagiarism directly from the admin panel.

Configure your plagiarism software with our APIs, to check directly from your server.

How it Works

Our free plagiarism checker works by using advanced database software to scan for similarities between your text and existing text. Their accuracy is determined by two factors: the size of the database and the advanced algorithm.

Comparing your content

All results are displayed in real-time. You can compare your plagiarised content with any of the matched URLs with just one click.    

Happy Customers

Our best free plagiarism checker is loved by 400,000+ customers worldwide. We have positive feedback from customers of all categories. Look at those reviews below.

Our Customers Feedback

We have 70,000+ happy clients, including Masters, Students, Teachers, and publishers around the world. A Positive previous record is enough for new users to understand that we have the most accurate plagiarism detector..

This free online plagiarism detector is amazing; it checks my content in seconds with very accurate results. According to me, it's the best plagiarism detection software.

I am a student, and I use this tool regularly to check plagiarism for in my papers. Best plagiarism checker online for students.

I used their APIs to configure my college website so that students can check plagiarism free for their papers directly from the college website.

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• Plagiarism Checker

Duplichecker detects plagiarism from your text more accurately

Available in:

To be specific, Plagiarism checking or content's similarity detection is a process of identifying the occurrence of plagiarism or copyright infringement within a work of content for writer, teacher, student blogger, webmaster, or any document.

What we offer!

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I LOVE DUPLICHECKER

Firstly, I have to say how much I love Duplichecker. Its by far the best checker on the Internet and the most simple to use. Its form fits its function and is an overall great website. Very Satisfied User

Joey Cipriano

“DUPLICHECKER IS FANTASTIC!”

“I am a freelance writer who uses the internet like a wall of encyclopedias of days long gone! My editor sent me your sites web address and three others. I pulled them all up and tried them out. None compared to your site! Thank you DupliChecker!!”

— PJ Martin, Freelance Writer

“HIGHLY RECOMMENDED!”

“Im a blogger and also work in an SEO company. I have been using this site for the past 2 years. I just wanted to say that Duplichecker is a great free tool to check duplicate content. I find this site very useful.”

Muhammad Akhther, India

How does the Plagiarism Checker work?

Steps to check plagiarism with DupliChecker.com?

The easiest process with a user-friendly interface.

Most accurate with percentage and 100% free and compatible, it can be used on any of your devices as ever needed.

The following steps are:

Paste your text into the text box.

Upload your Doc or Text file using the Choose File button. (.tex, .txt, .doc, .docx, .odt, .pdf, and .rtf)

• Click on the “ Check Plagiarism ” button

As your request is sent (button clicked) for processing, the results will be displayed in a matter of seconds.

In case, there are duplicate matches (content) found, the tool will show results in percentage meaning

Percentage % of Unique content

Percentage % of Plagiarized

The relevant text with similarity score along with the source it originates from.

(A tip “In the case of plagiarism detected there is a great option (button) to make it unique with the best Paraphrase tool .”)

In case no matches are found, a message will display “ 100% Unique ”

So, if you ever need to do a quick plagiarism check or are looking for free plagiarism software online, DupliChecker.com is the place for it!

Besides, we would love to get suggestions and recommendations from our valuable users. As we believe in Super User experience, simply suggest us .

There are additional features Offered by Duplichecker Premium.

Duplichecker allows you to scan up to 25,000 words per search. While using global search methods and AI-based technology it deeply analyzes the content for duplication. This plagiarism checker is one of the most efficient and advanced due to its extensive features such as URL checking, custom PDF reports, and supporting multiple file formats. Not only this, but you can also make your content plagiarism-free by rephrasing it in a single click.

Plagiarism checker API

We have the solution! 💯

If you want to embed a real-time plagiarism detection system on your website. Duplichecker’s plagiarism API is the best solution for you.

Benefits of the Plagiarism API:

Here are some key benefits of our Plagiarism API

Check multiple documents with one click, eliminating manual checks.

Simple API setup for seamless integration into your website.

Reliable detection of plagiarism across various types of content.

Reduces the need for extensive manual labor, saving costs.

Perfect for small educational institutions and large websites with frequent content submissions.

Designed to be intuitive and easy to use for everyone

Definition of Plagiarism

But before checking for plagiarism everyone should know, What Is Plagiarism?

“The act of pretension where you take one’s words and make them your own it can include ideas, thoughts, or any material that you can see/hear and make a copy of.”

If we talk in a legalistic manner then taking someone’s copyright and claiming it to be yours is unintentional plagiarism.

Self-Plagiarism

The concept of thinking that, self-plagiarism is only copying some other's paintings or borrowing someone else's unique idea. In my thoughts like "copying" and "borrowing" can cover the seriousness of the offense.

According to the Oxford Dictionary Plagiarism is:

“The practice of taking someone else's work or ideas and passing them off as one's own”

In precise words, plagiarism is an act of fraud. It involves both stealing someone else's artwork and lying approximately it in a while.

Necessity of AI Plagiarism Checker Over Time

DupliChecker's AI plagiarism checker utilizes artificial intelligence to enhance the precision of detecting plagiarism by analyzing various text elements, such as syntax, writing pattern, tone, and rhythm of words. This inclusion of AI simplifies to check AI plagiarism across different domains.

How Does AI Plagiarism Checker Differs from Traditional Methods?

The working of an AI plagiarism checker differs from traditional methods as it organizes your data and analyzes it with advanced machine learning and Natural Language Processing techniques. Later, this AI plagiarism detector compares the comprehended information with millions of web pages’ data available in its databases to find similarities. Lastly, it displays AI plagiarism detected in your content while letting you know its exact percentage. This entire method differs from traditional plagiarism detection methods that use string-matching techniques and provide an approximate estimation of plagiarism that needs to be more accurate.

Plagiarism detector VS Manual checking [Pros and Cons]

It’s boring, time taking and the big thing is the MANUAL! Ah

Who wouldn’t want to skip doing something that technology can do for you with more accuracy and quickly? Right!!!

We know We would! As it can help in many ways, one of which is finding a copy of original content over the internet and informing about it while you are sipping your coffee in dim light, “Sounds Cool”. Or you can go ahead and crosscheck to look for the plagiarized work manually which not only is going to take a lot of time. You need an excellent memory because while reading so many documents you might keep on forgetting the duplication and sources.

Isn’t it enough reason why a plagiarism scanner is used?

Because it is accurate and able to find the copied content real fast to improve academic honesty and whatsoever that does not allow plagiarism. This usually happens in almost every student, professional writer, professor, or content creator’s life that uses the internet to study, teach or deliver their work.

So, they have to be very careful in uploading a part of their work online; the best way is the use of image formation. If someone copies from the image we have developed a tool to find similar image . It will recognize objects on the image and let you know where this object or image is located. In which no one can copy any sort of work, but they will have to write down which people mostly don’t like to do.

Plagiarism in the digital world.

The most common problem in plagiarized content has to face is expulsion from the Search Engine Result Page (SERP), and websites that are aiming for a better rank can’t afford that.

Therefore this plagiarism checker will inform you after detection of all the areas of the internet where it finds similarity or duplication in the content.

In the world of the internet, it is not considered a crime, but it just shows deceitfulness in that person’s character. The question is why does it matter? Well, in academics, it can put people into serious trouble, if caught plagiarizing, they will not only face punishments but lose the time a beginner can utilize to learn.

In this cyberspace, there can be many mistakes that can trigger duplication in content. One of the most significant ones is failing to put a quotation mark, even if you had no intention of taking someone’s words but forgetting unintentionally to give credits or quoting the name, there is a possibility that it can put the content or you to serious complications.

Why Introducing Plagiarism checker by DupliChecker.com?

Whether it is an academic assignment or an article for a website, as a writer you must be familiar with the importance of written work. There are times in life when people copy your work and pretend to be the rightful owner of that content, how bad can it be? It is another discussion.

There is a specific term used for such a type of ill practice known as plagiarism. It is not about only the copy of the written content or academic paper, but people even copy photos, music, and videos and show others as their work without giving even a little piece of credit to the person who is the real holder of all that work. Thoughts and ideas of someone are their property and thus belong to them and can be protected by copyright laws .

We know how it feels when somebody takes away a part of your work. Of course, whatever you write is your thoughts; therefore, we developed a plagiarism detection tool.

Plagiarism detector looks for any copied content over the internet if found then online plagiarism checker free will inform you about where it is located and how much of your content is present word by word on that website.

Paper Checker (Essay checker)

How accurate is this free plagiarism checker for students?

Take our word: This copyright checker offers you the most authentic possible results.

It took us months of research and trials to come up with a final product – a duplicate content checker that you delightfully use to check your essay, articles, Quotations, and research paper today. Our sophisticated, one-of-a-kind anti-plagiarism tool has been designed as an exclusive free plagiarism checker for students to provide you with the results even for Academic writing that are authentic and easy to interpret with minimum probability of errors.

We drive satisfaction from the fact that our tool is being used by hundreds and thousands every day and users are happy with the results to improve academic integrity and unique web content. Nonetheless, if you come across any bug or error, please bring it to our attention so we can fix it soon.

According to our millions of satisfied users, absolutely Duplichecker.com is free and the most accurate plagiarism checking the website.

There is a procedure as mentioned above, How does the Plagiarism Checker work?

It detects plagiarism by checking more than billions of websites, pages, and papers.

Absolutely free with duplichecker.com

Simply upload the file as instructed in this section.

Duplichecker allows you to check the plagiarism of any website by just pasting the URL in this section.

Yes! The AI plagiarism checker is capable of detecting paraphrased content. Its advanced mechanism identifies and highlights phrases, sentences, or paragraphs that have been paraphrased from another source over the web.

Yes! The AI plagiarism checker is compatible with a wide range of document formats. Whether you have a document in .pdf, .txt, .doc, or .docx format, you can easily check AI plagiarism and determine the correct proportion of duplication.

FREE TOOLS FOR BETTER SEO, EFFECTIVE CONTENT, AND BUSINESS GROWTH

As a webmaster that cares about the success of your online business, you ought to deploy the best tools online to optimize your content, improve your search appearance, and ultimately grow your business. DupliChecker is an inventory of truly helpful web tools for managing your content marketing and search engine optimization activities for fast growth.

Our tools can help you grow any kind of online business, whether it is a hobby blog, a business website, or an eCommerce store where you sell your products and services. DupliChecker can also help you learn why your competitors are ranking high on search engine results pages (SERPs) and what you need to do to outrank them.

Our tools are so reliable that we call it “DupliChecker” which means every time you run your website or content on it, our sophisticated engines double-checks for accuracy before delivering incredibly helpful results. And it does this in a matter of seconds.

DupliChecker is an online service that provides dozens of free, high-grade SEO and content tools . The tools and the DupliChecker platform are being managed by a small team of enthusiastic digital professionals with a knack for helping online entrepreneurs take their search and content marketing games to the next level. Our team consists of experts in search engine optimization, content marketing, digital product development, user interface design, user experience optimization, web research, and social media marketing.

We build tools — premium-quality SEO and text analysis tools. But we don't just build tools for the sake of it; we are a team on a mission to make the best SEO and content marketing tools accessible to people all over the world for absolutely free. We've created over 100 remarkable tools so far. Some are as follow:

• Paraphrase Tool
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• Keyword Research Tool
• Geo IP locator
• Domain Authority Checker
• PageRank Checker , And So many others

HOW WE DO IT

Our digital tools are always readily available for use by anyone. We've made it so simple and easy that you don't even need to register on our website to start using them. All you really have to do is provide the required information necessary to process your request, like providing the URL of a web page you want to analyze. Each tool page contains information on how to use the tool.

WHY WE DO IT

What is our target with DupliChecker? Why do we create premium tools and make it available for free? The key thing that pushed us to start is this: we found out that the web was full of talented people who needed quality tools to grow their online businesses. What is the problem? Mostly, the only tools that were available were ones that required users to pay top dollars. So we decided to create a platform for accessing great SEO tools for free. So typically, our “why” is that we are driven to make “pay-worthy” tools available to users for completely free? And we are passionate about it!

WHERE YOU COME IN

DupliChecker is for everyone. Whether you are a website administrator, blogger, freelance writer, SEO professional, a marketing manager, etc., DupliChecker has So many things to offer you.

Here are some of the things you can do with DupliChecker tools:

Text Analysis Tools

Whether you want to check the word count of your content or analyze it for plagiarism. Whether you want to spell or grammar check, DupliChecker has all the content analysis tools you will ever need to make your texts stand out and avoid duplicate content.

Stop wasting time with manual article rewriting and editing. Our sophisticated paraphrase tool lets you recreate any piece of content to a super high quality in just minutes by spinning the tool.

Build or Analyze Backlinks

You can build multiple quality backlinks at one go with our backlink generator tool. Our other link tools enable you to do things like analyze backlinks for any website, check broken links, track links, and so on.

Keyword Research Tools

With our keyword research tools, you get thousands of relevant keyword suggestions from our mammoth database of millions of valuable short-tail and long-tail keywords. You can also check keyword density and even keyword position.

Search and Optimize Images

As an all-around SEO and content tool, DupliChecker lets you perform a reverse image search, resize any image, and convert images from one file format to another.

Check Website Statistics

From Google Pagerank to Mozrank and even website hit counts, you can rely on our tools to deliver accurate statistics of your website or that of competitors.

Spy on Your Competitors with

Most of our tools can be used to spy on your competition, to see what they are doing so you can best position your marketing strategy for greater results.

Monitor Domains

Our array of domain tools is the best for checking domain authority , domain age, page authority, and what have you. Monitor which domains are expiring so you can easily grab it before anyone else does.

Generate SEO Instruments

From XML Sitemaps to robots.txt , our tools let you create and manage useful SEO instruments for appropriate indexing and higher rankings.

Analyze SEO Score

Perform a balanced SEO audit on any website with our SEO checker tool. Use our advanced SEO metrics to make educated decisions about the next best step to take for the best search performance.

We run over 100 SEO tools and content engines which you can use to perform numerous activities to grow your search traffic, business, and revenue for free!

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Empower students to do their best,

Original work.

Advance learning with an AI writing detection solution built for educators

Our advanced AI writing detection technology is highly reliable and proficient in distinguishing between AI- and human-written text and is specialized for student writing. What’s more, it’s integrated into your workflow for a seamless experience.

Student success starts here

Uphold academic integrity.

Ensure original work from students and safeguard the value of writing.

Assessments with transparency into AI usage

Flexible solutions enabling educators to design and deliver student assessments their way, while shaping AI-enhanced student writing with integrity and confidence.

Foster original thinking

Help develop students’ original thinking skills with high-quality, actionable feedback that fits easily into teachers’ existing workflows.

Customer stories

University of leeds widely adopts gradescope for online assessment.

With campuswide digital transformation in mind, rollout to thousands of faculty across disciplines took only two months, far quicker than anticipated.

University of Maryland Global Campus builds a culture of academic integrity by pairing policy with technology

Keeping student and instructor needs at the core is key to upholding their rigorous standards of integrity while centering students in their learning.

Solutions made just for you

See solutions for Higher Education

Prepare students for success with tools designed to uphold academic integrity and advance assessment.

See solutions for Secondary Education

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The rigorous academic research and publishing process gets a trusted tool to ensure the originality of scholarly work.

Keep integrity at the core of every assessment.

Everything you need no matter how or where you assess student work.

Feedback Studio

Give feedback and grade essays and long-form writing assignments with the tool that fosters writing excellence and academic integrity.

Originality

Check for existing as well as new forms of plagiarism - from text similarity and synonym swapping to contract cheating, AI writing, and AI paraphrasing.

Grade paper-based, bubble sheet, and code assignments faster than ever while giving more robust feedback and gaining valuable insights.

Address potential gaps in curriculum and assessment to prepare students for their careers and meet accreditation requirements.

This robust, comprehensive plagiarism checker fits seamlessly into existing workflows.

iThenticate

Screen personal statements for potential plagiarism and ensure the highest level of integrity before matriculation.

The Turnitin difference

Complete Coverage

Your coverage is comprehensive, with the largest content database of scholarly content, student papers, and webpages.

Extensive Support

Have the help you need with 24/7 tech support, curricular resources created by real educators, and customized training and onboarding services.

Human-Centered AI

Our people-centered approach to artificial intelligence improves academic integrity and makes assessment better for all.

Unparalleled Access

Access Turnitin tools at scale through integrations with over 100 systems in the educational ecosystem.

Further Reading

The Plagiarism Spectrum 2.0 identifies twelve types of unoriginal work — both traditional forms of plagiarism and emerging trends. Understanding these forms of plagiarism supports the development of original thinking skills and helps students do their best, original work.

An educator guide providing suggestions for how to adapt instruction when faced with student use of AI.

Free Online Paper, Thesis and Essay Checker

Use our essay checker to make your essays, paper and thesis error free. Copy and paste your content to quickly remove misused words, repetition, and formatting errors.

Add or Upload Content to see Suggestions

All your writing is flawless

Are you sure you want to clear text and results?

How to Use This Essay Checker?

The essay checker can be easily used to rectify the errors incurred while writing an essay. You are just required to follow the simple instructions shared below:

Submit Your Essay

Copy and paste the essay or write directly into the above box.

Hit the Button

Click the “Check Essay” button to start the process.

Identify & Rectify!

The mistakes in your essay will be highlighted. You can use the given suggestions to rectify them.

How Does Essay/Paper Checker Work?

The paper checker works on advanced algorithms that deeply examine academic assignments for unclear sentences, grammatical mistakes, and misused words. Its technology is designed to help students overcome difficulties in correcting errors in their papers and essays. The automated nature of this paper checker allows users to detect all types of essay and paper errors and skip the hassle of correcting them. It requires minimal effort, as you are only asked to submit your paper. After receiving your command, it thoroughly checks and highlights the identified errors.

Errors to Correct with Our Essay Checker

Correcting errors made in an essay is crucial for a student to achieve a good grade. Our essay checker helps you in fixing the following errors.

Consistency and Style

When writing an essay, consistency and style matter a lot. Without following the right style and consistent pattern, your writing won’t contain any worth in the eyes of teachers. You can detect such errors with the essay checker free facility. It will help you ensure consistency and style in your essay to make it score a top grade.

Formatting Errors

Formatting an essay is as crucial as writing it. Without proper formatting, your essay won’t be able to make an impact; hence, you need to avoid making errors. But after completing an essay, you might not be able to detect formatting errors independently. So, for this purpose, you can take the assistance of the essay corrector. This tool will help you examine how the formatting of your essay is incorrect and what you can do to resolve it.

You can easily repeat specific ideas and sentences when writing a lengthy academic assignment. This practice must be avoided, as repetition makes your essay look clumsy. It’s understandable that while reading your work, you won’t be able to detect such mistakes alone. Hence, you can try using an essay checker to overcome this problem. It will help you spot the phrases, sentences, or passages that are repeated in your essay, which you can easily remove with a single click.

Misused Words

In essay writing, you need to be careful about your word choice. You cannot opt to use informal or slang words in the essay. Similarly, you need to use contextually correct terms for your essay. If your vocabulary is weak, you don’t need to worry. The free essay checker can easily detect misused words in your paper. Besides detecting incorrect words, it will also provide you with suggestions for better words that can be used in your essay.

Unnecessary Capitalization

Capitalization errors occur when you unnecessarily capitalize a word that shouldn’t start with a capital letter. You can spot this mistake by taking the assistance of an essay checker. This tool thoroughly goes through your essay to analyze the mistakenly capitalised words and allows you to correct them quickly.

Why Should You Use Our Paper Checker Online?

The free paper checker is essential for students, as it eases the process of removing mistakes from academic assignments. It would be best if you used our paper check facility due to its benefits, such as the ones discussed below.

Become a Better Writer

Apart from allowing you to improve your academic performance, free essay checker can also help you become a perfect writer . When you check and correct your mistakes and become able to write flawlessly. It can help you in your writing journey and give you the confidence to excel in the diverse writing field.

Better Grades

Another benefit of using our paper checker is its ability to help you get better grades. The presence of errors in your paper will create a wrong impression in the minds of the teachers and may cost you essential marks. You can prevent this by using a paper grader, which allows you to fix silly paper mistakes that can ruin your efforts.

Save Effort and Time

Being a student, it’s pretty hectic to manage multiple tasks in a short time. As you need to take care of various challenges every day, it might not be possible for you to review your paper, identify mistakes, and fix them accurately. Using a paper check tool helps you save effort and time, which you can invest in other important tasks.

Ensure Clarity in Your Thesis with PlagiarismDetector.net

A thesis is an important academic document that represents the culmination of extensive research and analysis. As an important milestone in one's educational journey, it is crucial to ensure the thesis is clear, coherent and well-structured to convey the necessary message to the readers effectively. Our thesis checker has impressive AI, which can quickly detect even the most minor errors in your thesis. This thesis statement checker helps you to focus on the thesis with an open mind. All you need to do is check the thesis when it is complete and fix the errors found by this thesis grader.

Additional Services Related to Essay Checker

Besides allowing you to check for structural and formatting mistakes in your essay, you can also get your hands on the following services to improve essay quality.

Punctuation Checker

Sentence checker, grammar checker, frequently asked questions (faqs), can i use this essay checker for free.

Yes, you can use the essay checker free for all time. You won't be charged a penny no matter how many essays you wish to check through it.

Is it Safe to Use Essay Fixer Using this Platform?

Yes! The essay fixer is entirely safe and secure to use on our platform. Your essay won’t get published or stored in our databases. Once you have fixed the errors in your file, it will be safely removed from the servers.

How Long Does this Thesis Checker Take to Resolve All Mistakes?

The thesis checker takes a couple of seconds to process your request and identify the mistakes it contains. You can rectify them one by one or ask this paper corrector to do it instantly!

What Can Be Checked by This Essay Corrector?

Our essay corrector can correct any academic work, including class assignments, essays, thesis, and research papers.

How Can I Check My Paper Online?

You can check your paper online by accessing the paper checker offered on Plagiarismdetector.net. Copy and paste or type your text and click the given button to identify the mistakes existing in your paper.

Is it Legal to Use this AI Paper Checker?

Yes! The AI paper checker doesn’t breach any laws or rules of the academic world. It’s just a proofreading assistant that helps students check and correct their thesis, papers, or essays.

Plagiarism Checker

Plagiarism checker free quickly scans and provides 100% accurate reports online. Check for plagiarism in your text, essays, thesis, and web pages 👇!

• Original Article
• Rewritten Article

Characteristics Of Online Plagiarism Detector

• Advanced plagiarism detection algorithms
• Deep search technology to scan each phrase
• Cross-check billions of textual documents
• Excludes specific URL
• Gives 100% accurate results

Color Distinctness

• Differentiate original & plagiarised content.
• Highlights both contents with distinct colors.
• Provides plagiarism detection reports
• Attach references

Writing Enhancements

• Identify grammar mistakes
• Remove plagiarism by Rewriting
• Gives 100% perfect content

How to Check for Plagiarism Online?

Access our tool.

Go to RewriteGuru and find this free plagiarism checker from the header.

Upload Content

Type or copy-paste the text you wish to check for plagiarism in the given box.

Press the Button

Press the “Check Plagiarism” button to initiate the process with our copyright checker.

Plagiarism Test Completed

The plagiarism scanner will generate results and display downloadable plagiarism detection reports.

Working Mechanism of Online Plagiarism Checker

Our advanced online plagiarism detector check plagiarism free and ensures the authenticity of the text by comparing it against a vast database of existing documents, articles, websites, and academic papers. This copyright checker breaks the content into pieces and then performs a deep plagiarism detection scan against each segment to provide the most accurate results.

Key Features of Our Plagiarism Detector Free

Getting your hands on an online plagiarism checker free is essential to detect and remove plagiarism before publishing your work. Here are the key features and functionalities that distinguish our duplicate checker from typical plagiarism check tools.

Scans Billions of Web Pages

Privacy protection, download the plagiarism test report, highlights plagiarized sentences, remove plagiarism, grammatical corrections, file saving, free & quick search.

This originality checker has a huge database that helps you with full assurance of accurate plagiarism detection results. When you request to check for plagiarism, billions of web pages stored in its directory are scanned and matched with your entered text.

People don’t trust online tools easily. However, this free plagiarism checker ensures users the confidentiality of their entered text and documents. Our originality checker cares about the integrity of its users so its databases have been designed to automatically remove the uploaded text once the plagiarism scanning is completed.

When our plagiarism detector free completes the processing you can download the report with a single click. You don’t have to be a premium user to use this feature. The reports are saved in PDF format on your device that you can easily access without downloading any software.

This free plagiarism checker highlights the plagiarized sentences which helps users to distinguish between original and duplicated content easily. As soon as the online plagiarism check process is completed, sentence-wise results are displayed on the screen.

RewriteGuru’s copyright checker free provides you with assistance in removing plagiarism with its rewriting services. There’s no need to rely on manual paraphrasing, as you can easily get rid of plagiarism with the help of an advanced article rewriter tool. without investing time and effort.

Besides providing a free plagiarism detector and rewriting service, you can also benefit from its grammar check feature. On this platform, you can proofread your text and eradicate grammatical mistakes without hassle.

This best free plagiarism checker not only scans deeply but also provides you with a detailed duplicate check report including references. You can easily download the final plagiarism detection report with just a single click.

The result-generating speed of the plagiarism detector free is just commendable. You can get your hands on an accurate outcome within seconds. No matter how many times you wish to use our plagiarism check tool, it won’t demand a single penny.

What Are the Possible Ways to Avoid Plagiarism?

Research from scratch.

If you have researched the topic you want to write from scratch, you won’t have to rely on other blogs and articles. When we take the assistance of other sources in between writing, the chances of duplication are extremely high. By doing research from scratch, you can easily avoid the hassle of plagiarism. Moreover, by doing this practice you will be able to generate unique ideas and write fresh content.

Use Quotations

The usage of quotations is an easy way to avoid plagiarism. If you’re giving proper credit to the source from where you have taken words or ideas, then it will save you from the negative effects of plagiarism. Using quotation marks around the words symbolizes that this portion of the text doesn’t belong to you. In this way, you won’t be committing any crime, and no one would be able to raise fingers at your credibility.

Run Plagiarism Check Test

In case of unintentional plagiarism, you won’t know whether your text contains any plagiarized data. To stay on the safer side, you can use the free online plagiarism checker to run a plagiarism test and identify instances of duplication. This similarity checker will provide you with the details of the sources from where your entered text matches. By finding this out, you can remove such sentences or phrases that have been already used by other writers.

Avail Paraphrasing Tool

Another smart way to avoid plagiarism is by using our paraphrasing tool . This tool will also take only a few seconds to provide you with exceptional results. This service allows you to get your hands on a new version of your uploaded text that doesn’t contain any traces of plagiarism. It helps you to rewrite the text as per its actual context.

Who Can Check for Plagiarism with This Tool?

Our AI plagiarism checker free is here to deeply scan & ensure content uniqueness with 100% accuracy. People from the following fields can get benefits from our online plagiarism scanner.

Researchers/ Writers

Seo experts.

In today's world, students can get information or educational help from the internet with just one click. Whether they have to create their project thesis or casual assignments, all they need is an internet connection or a gadget(Laptop or Mobile).

The chances of getting plagiarism are very high these days so, every student is finding the answer to “How can I check my paper for plagiarism?”. For assistance, RewriteGuru has introduced this free plagiarism checker for students with 100% accurate results. The students can check for plagiarism in their thesis, essays, papers, or assignments without paying a penny.

Keeping track of all the sources and information you come across while researching and writing can be challenging. The free plagiarism checker online utility can help identify any instances of plagiarism quickly, saving the researcher time and effort in the long run.

Using this similarity checker can help researchers enhance their credibility by ensuring that their work is original and authentic. Moreover, they can establish themselves as experts in their field and build a reputation for producing high-quality work.

The plagiarism detector free can be beneficial for bloggers who want to ensure that their content is original and safe from duplication. As a blogger, your readers trust you to provide authentic and original content.

Google and other search engines prioritize original and high-quality content. So bloggers can use the online plagiarism checker to ensure that their content is original, which can help improve their search engine rankings. Moreover, they can also get assistance from a free AI paragraph rewriter to recreate any existing content with the same context.

Duplicate and AI-generated content can harm SEO efforts and reduce the authority of a page. SEO experts can quickly identify AI content and rectify any duplicate content by using the AI content detector and plagiarism checker online free utilities.

To check plagiarism for a web page all you need to do is just paste the URL of that page and press the button. This act can play a vital role in boosting your website content.

Frequently Asked Questions

What is plagiarism.

Plagiarism is stealing another author’s ideas, thoughts, words, or expressions and publishing them under your name. In broader terms, if you use anything that is not your creation, it will be considered plagiarized, and you can face legal consequences.

How to check plagiarism with this Free Plagiarism Tool?

To check for plagiarism free just upload your document or paste the content in the text box. Then press the "Check plagiarism" button. This online plagiarism tool will provide you 100% accurate downloadable plagiarism report within seconds.

What type of content can this plagiarism scanner check?

This essay plagiarism checker has no limitations. You can get a plagiarism scan report for any type of content including research papers, thesis, essays, articles, and even web pages.

In Which Ways Plagiarism Can Affect Us?

Plagiarism can affect you personally, professionally, legally, and academically. But with the assistance of an AI plagiarism checker free, you can avoid these penalties.

Do I need to register to use this plagiarism detector free?

No, there is no need for registration to check plagiarism by using this tool. Just upload your content and check for plagiarism free with a single click.

What are the common types of plagiarism?

There are 5 common types of plagiarism.

• Global plagiarism
• Verbatim plagiarism
• Paraphrasing plagiarism
• Patchwork plagiarism
• Self-plagiarism

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Plagiarism Detector Online

✓ Result within 10 min.

✓ Your work will not be saved to a database

✓ Compared to billions of online sources

Printing discount

Go to plagiarism detector online

Detector takes only 10 min.

Compared with billions of sources

No saving to database

Inhaltsverzeichnis

• 1 Plagiarism package S
• 2 Plagiarism package M
• 3 Plagiarism package L
• 4 Secure your printing discount
• 5 Simple process
• 6 Result in 10 minutes
• 7 Easy to understand
• 8 Your work is safe & won’t be saved

Plagiarism package S

What's included.

Up to 8.000 words

Only 10 minutes processing time

No saving in database

All languages

Compared with billions of freely accessible sources

10 % print voucher

Plagiarism package M

Up to 60.000 words

Plagiarism package L

More than 60.000 words

Secure your printing discount

If you choose to check your paper for plagiarism at BachelorPrint, you will recieve a 10% voucher for our online shop! You can use the discount for printing, binding, and embossing your thesis or dissertation and get the perfect binding.

To the configuration

Your Benefits with the Plagiarism Detector Online

Simple process

Upload your Bachelor’s or Master’s thesis or dissertation to BachelorPrint in Word, PDF, OpenOffice, or any other common format. It is also possible to upload several documents at the same time with up to 50 MB and 350 pages (ca.750.000 words). The plagiarism checker automatically detects the word count of your document and selects the right plagiarism package for your thesis. The plagiarism checker will then take care of the rest.

Result in 10 minutes

After 10 minutes, the plagiarism detector online will have processed your entire paper and the final result will be sent to you via email. There is also the option to be notified through SMS as soon as the plagiarism detector online is done, allowing you to get the full plagiarism report within 10 minutes. Accuracy is ensured, as your work is compared to billions of freely accessible and legitimate online sources.

Easy to understand

At BachelorPrint, it’s important to us that the result of the plagiarism detector online is easy to understand. Thus, any suspicions of plagiarism will be marked and pointed out in traffic-light colors in the final plagiarism report. The report also includes a percentage calculation of the overall similarities to other sources that have been identified in your paper for a better overview.

Example PDF report

Your work is safe & won’t be saved

After the plagiarism detector online has processed your work, it will be fully deleted and can’t be recovered. You can be assured that it also won’t be saved in any database. This will additionally protect you from plagiarism in case your educational institution has its own plagiarism detector online, as your paper can’t be found as a comparable source.

Why Use a Plagiarism Test Tool?

Avoid Plagiarism

The main purpose of a plagiarism test tool is to prevent you from plagiarizing any other work. You can only be completely sure by running your work through a plagiarism test tool.

Academic Integrity

Keeping academic integrity and following academic standards is one of the most important aspects of your academic work, as they are highly impacted by any committed plagiarism.

Citing Correctly

Using a plagiarism test tool also assists in ensuring your used sources are cited correctly. Including proper citation and referencing is a vital cornerstone for avoiding plagiarism.

100% Real Reviews

Do you have any questions, how long does the plagiarism detector online take.

The plagiarism detector online, working on a bachelor’s or master’s thesis (60-80 pages), normally takes between 10 and 20 minutes. It depends on the number of words submitted. In the case of longer pieces of work (200-300 pages), the plagiarism detector can take up to an hour.

Does the plagiarism detector online work in other languages?

Yes! The plagiarism detector online works in all languages. Regardless of the language or if you’re writing a Master’s thesis or an essay, the plagiarism detector online will work for you.

Will the document I upload be saved to a database?

No! For data protection reasons, we don’t save any of our customers’ uploaded documents. We delete them from our server within 24 hours! Upload your document, and you’ll have your plagiarism report within the day. Start your plagiarism check now.

Do I have to register for the plagiarism detector online first?

No! You can just upload your document, choose your payment method, and then use the plagiarism detector online without a user account or registering. It’s quick and easy, plus, none of your data will be saved once the check is completed. Start your plagiarism check right away!

Which sources will be used by the plagiarism detector online?

All publicly accessible online sources will be used in plagiarism detector online. This includes publicly accessible websites, books, reports, journals, etc. Databases where payment is required are excluded. If you’re having trouble organizing and referencing your sources properly, head over to our blog. We have many articles about proper citation and referencing .

Will books also be referred to in the plagiarism test tool?

If the book is online in a publicly accessible database, then the plagiarism test tool will also find this source. However, if you have cited a hard copy of a book, and it also exists online, then this may be picked up by the plagiarism test tool. If you have cited the source, you have no need to worry- it’s simply an extra precaution. Take a look at our blog post for more information about citing books.

What’s the difference between the BachelorPrint plagiarism test tool and Turnitin?

The BachelorPrint plagiarism test tool doesn’t save any uploaded work for data protection reasons, unlike Turnitin. Accordingly, we don’t rely on the same database as Turnitin. However, our plagiarism detector searches billions of publicly available sources on the World Wide Web.

Information: If the work is scanned for plagiarism in advance with Turnitin, and the university also uses Turnitin, there is a considerable potential risk for the writer. As Turnitin saves the uploaded work, this will then be in their database. If the university scans the same work on it, it will then be classified as complete plagiarism. This has already occurred a few times. The student’s work failed in the first instance, and they had to prove that they had written the document saved by Turnitin.

I haven't received an email with the plagiarism test tool. What should I do?

The email might have gone into your spam folder. In really rare cases, our email with the plagiarism report from the plagiarism test tool might have been blocked by your email provider and hasn’t been received. Please contact us at [email protected] . We will email you the plagiarism report again.

Too few pages are shown in the plagiarism report. Why?

For an overview, only text passages that might contain plagiarism are shown in the plagiarism report. The other pages where no plagiarism is suspected will not be shown. So fewer pages in your plagiarism report is really a good sign- it means that you’ve cited your sources correctly. Take a look at our blog article for more information about referencing and citation styles.

Why is a section marked as suspected plagiarism even though I have cited the source?

It’s possible that a section of text is marked as suspected plagiarism even though it has already been correctly cited, for example from a book. This happens if the test tool finds a further online source. In this case, the suspected plagiarism can be ignored and serves as extra peace of mind.

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Share your requirements with us and our team will respond to you promptly., thesis grammar checker, check your thesis for grammar & language errors.

Trinka AI helps students write their thesis with confidence by finding and correcting language and grammar errors.

Trusted by Global Leaders

Why Choose Trinka's Thesis Grammar Checker

Trinka identifies errors specific to academic and scientific writing that other grammar checkers may miss. It efficiently proofreads everything from complex grammar errors to scientific style and tone!

Trinka has been trained and learned from the best-written papers in every discipline to provide you with the most accurate suggestions. Your academic writing will always be clear when using Trinka thesis grammar checker.

• Automated edits save time
• Professionalize your writing
• High-quality data security
• Enjoy it for free

Trinka's online thesis editor offers top-notch quality, reasonable pricing, and rapid turnaround time for editing your thesis.

Features of Trinka’s Thesis Grammar Checker

Trinka's advanced thesis grammar checker will remove grammatical and spelling from your thesis or dissertation documents and improve its overall language quality and presentation.

Overall Language Enhancement

Enhance your writing skills with Trinka's language advice, which covers a wide range of aspects including vocabulary enrichment, tone refinement, syntax enhancements, and more.

Retain Original Formatting

Your content will be revised with all changes highlighted using track changes, ensuring that the original formatting remains intact.

Plagiarism Check  

Explore the cutting-edge text similarity detection algorithm, iThenticate, which is powered by the largest paid publication database encompassing all scientific disciplines.

Table of Revisions

Get a comprehensive breakdown of table of revisions categorized by language, providing a quick overview of the types of edits and content updates made.

Style Guide Preferences

Customize the grammar and word selection of your manuscript to align with commonly referenced academic style manuals such as AMA 11th, APA 7th, and ACS 2nd editions.

Works on All Subjects

Customize Trinka to offer you the most relevant recommendations, tailored to your subject area and manuscript type.

Check Beyond Grammar and Spelling

Trinka's thesis checker goes beyond grammar and spellings to holistically enhance your writing.

Style Guide Preference

Technical Phrasing

Word Choice

Word Count Reduction

Academic Tone

Usage and Style

Unbiased Language

Advanced Grammar

US/UK Style

Vague Language

Sentence Structure

Advanced Spelling

Testimonials.

First, I love Trinka. Congratulations on developing something that extensively aids editing, especially critical grammar conventions and word count reductions.

James Smith

I have been using the Trinka service, particularly to proofread manuscripts since 2023. This will service check and correct grammar, spelling writing advice, and enhancements of your manuscript. The platform’s intuitive design and comprehensive feedback have greatly enhanced my writing skills. The ability to provide context-specific suggestions makes it a standout tool to ensure clarity and precision in my work. I highly recommend Trinka to anyone looking to improve their writing quality.

Dauda Ayuba

I've been using Trinka for four months now, and I have extensive experience with other grammar checker systems. I've used the proofreader for two ten-page papers, and I must admit, I'm quite impressed by its quality and usefulness. I am very satisfied with Trinka and strongly recommend it for academic proofreading.

Emmanuel Lochin

Writing texts with correct English grammar and style is not an easy task for people who speak other languages. Sometimes you cannot find little mistakes in your document without help and moreover for academic writing. I tried Trinka AI as a tool of automatic correction and was quite glad with the suggested corrections and the feedback. With the feedback you understand why the suggested change must be taken into account.

Rosa Diaz Sandoval

Trinka has a robust proofreading feature that allows me to effortlessly upload entire manuscript documents and receive fully tracked changes in a single step. Moreover, its unique supporting tools such as citation checker and journal finder, significantly enhance the efficiency of my research endeavours.

Fouad Khalifa

I just wanted to say thank you for such a great and free service, all the other grammar checkers and writing assistants I have tried don’t have nearly the depth of features let alone all available on a free subscription. As a student with little income available I am extremely grateful that unlike all others companies you don’t limit features on the free plan. This is a fantastic product and given the income I would definitely upgrade to the premium. I've let all my fellow students know about Trinka as it is seriously a life saver.

Jesse Rumball-Smith

I have mainly used it to improve the language, grammar, and syntax of the scientific manuscripts that I write for national and international biomedical journals. I have found the interface to be user friendly and the procedure itself is efficient and hassle-free. The auto-edit is a great help and the supplementary page with the revision summary is an excellent idea.

Dr. Farooq Rathore

Trinka AI is a great tool to help beginners in research publication. Its grammar editing, online proofreading with file download, citation checker, plagiarism checker, paraphraser, and journal finder provide amazing features at your fingertips. Even the free Trinka Basic plan can be invaluable for researchers in their early stages or at PG levels, helping them improve project reports and papers to meet publication standards. Overall, I'm extremely impressed with Trinka AI, as it stands out among research writing tools. Give it a try and you will love it! Thanks Trinka AI team for this valuable tool.

Dr. Nitin Wahi

Trinka.ai is my most favorite choice for grammar and spelling edit. The application works correctly, is fast and tidily! Completely satisfied!

Georgieva Milena

The grammar checking tool exceeds Grammarly! I re-checked some documents that I had checked earlier with Grammarly. I was pleasantly surprised to see such a product from India!

Dinesh Gupta

Trinka has awesome features. Advanced level of academic writing checker and suggestion are so original. I would highly recommend to others.

Aftab Hussain

I have tested Trinka and am impressed with its fine capabilities. It did better than the grammar checkers I use. Well done! I have told my colleagues in my research lab to use Trinka. Hope it is widely used in academia.

Edith Davies

Trinka AI's suggested corrections and feedback astounded me. It is simple to use and extremely beneficial

Noor Al-rishi

It's been a wonderful experience using Trinka and I almost can't submit any manuscript without re-evaluating with it. In summary, Trinka has been a life-saver.

I trust and use Trinka as a final spot check for my edited documents. It helps me find the few remaining errors that I have missed during the primary editing. I really like using this platform for my writing. One particular feature that works well for me is the thumbs down button.

Stumpf Curtis

I think Trinka.ai is a very interesting and potentially useful idea, especially for editors/publishers/journals. I found it very useful when I checked my editing work on the platform.

Dyke Gareth

I am happy with the overall performance. I have been using Grammarly for a long while, but when it comes to academic or technical writing, Trinka is definitely a much better option. Academic document settings and auto file edit are my favorite features.

Bhargava Sharma

Trinka has become my go-to tool for grammar corrections. The AI-powered corrections and language enhancements made writing a lot more easier. Now I am able to focus more on research than on writing an error-free document.

Ralph Bailey

The grammar correction and suggestion based on the AMA style guide is really impressive! Trinka is indeed the best grammar correction tool for medical writing.

Thomas Andres

Get Trinka Where You Need It

Safe, Secure, and Trusted

Trinka puts data safety and privacy at the forefront. All your data is strongly encrypted and securely stored - no one else has access to your data. We offer unique plans that completely eliminate saving any data once you receive writing suggestions.

About Trinka

Trinka uses the latest, state-of-the-art Machine Learning (ML) and Natural Language Processing (NLP) technologies to identify grammar errors and suggest language enhancements. It is trained on millions of well-written papers and articles covering 1300+ subject areas including medicine, life sciences, biology, physical sciences, engineering, humanities, business, and arts to give you the most relevant suggestions.

Trinka is developed by a team of linguists, medical editors, data scientists, and engineers with a deep desire to create a future with barrier-free communication.

Frequently Asked Questions

Yes. Trinka has been trained on an extremely large set of well-written papers—a substantial number of these papers belong to various fields in medicine, ranging from surgery and cardiology to pharmacokinetics and psychiatry. Trinka provides contextual suggestions based on the discipline of your choice.

There are positives and negatives of using an AI editor. With an AI editor, you have speed, control and the best part—it’s completely free!

AI editors support human editors who can organize your writing into a clear, logical, elegant paper. After letting the AI editor edit your paper, if you feel you need a human check, we do have in in-house experts copyeditors who provide assistance with reviewing your final documents.

The Proofread File service gives you’re the following benefits:

• The edited file will display all changes in track changes. This means you can review the changes and accept or reject them using Microsoft Word or any other compatible word processor. This file will also include comments that will help make your writing clear.
• You will also receive a detailed report which shows the number of revisions Trinka has made in each language category and an overall writing quality score.