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10 Best Free Plagiarism Checkers in 2023 | Tested & Reviewed

Published on June 8, 2023 by Koen Driessen .

To find the best free plagiarism checker in 2023, 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. review, 9. search engine reports review, 10. 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:

best plagiarism checker scribbr

  • 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.


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

que text

  • 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

plag detector

  • 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

Check Plagiarism

  • 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 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. 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. 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


  • 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. 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

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 .

Scribbr is an authorized Turnitin partner

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. (2023, June 08). 10 Best Free Plagiarism Checkers in 2023 | Tested & Reviewed. Scribbr. Retrieved December 4, 2023, from

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Other students also liked, types of plagiarism and how to recognize them, how to avoid plagiarism | tips on citing sources, best plagiarism checkers of 2023 compared, what is your plagiarism score.

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This is weighted average of all matches in your text. For example, if half of your paper is 100% plagiarized, your score would be 50%

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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.

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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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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.

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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.

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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?

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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.

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Our professional online plagiarism checker work offers too many benefits to ignore. With our plagiarism detector, you can enjoy highly accurate results as a comprehensive report. The plagiarism checker for students is designed to help you achieve 100% uniqueness without hassle. Here are the key advantages you can enjoy when you check plagiarism free with our plagiarism detection tool:

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The report from our plagiarism tool gives you access to all the links from where it has detected similarities in your work. You can head to the relevant sites and see which information you must rewrite to improve your results.

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Plagiarism Checker by Grammarly

Example of how Grammarly detects plagiarism

Plagiarism Checking

Correction of vary to very

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Why use a plagiarism checker, how does grammarly’s plagiarism checker work, who benefits from grammarly’s plagiarism checker.

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Plagiarism Has Evolved, So Should Your Detection

Check for plagiarism in over 100 languages using advanced AI to detect the slightest variations within the text, including hidden and manipulated characters, paraphrasing, and AI-generated content.

Take it beyond word-for-word plagiarism detection with the only platform that:

  • Detects AI-generated content, including GPT-4 and Bard
  • Detects multiple forms of paraphrasing
  • Performs image-based text plagiarism
  • Exposes attempts to deceive detection software
  • Detects source code plagiarism and modification

What You're Getting

Ai-generated content detection.

The most comprehensive and accurate AI content detector with 99.1% accuracy, full model coverage including GPT-4 and Bard, detection in multiple languages, and the ability to detect paraphrased AI-generated content.

Cross-Language Plagiarism Detection

Supporting over 30  cross-language  plagiarism scans, you can scan a document in English and find plagiarism and duplicate content matches in Chinese, German, and Portuguese.

Source Code Plagiarism Detection

Maintain source code transparency with the only platform capable of identifying AI-generated code plus the capability of detecting code plagiarism, code that has been modified, and licensing alerts to avoid potential infringement. 

Scheduled Recurring Scans

New content is being created at an unprecedented rate. Stay on top of how yours is being used with recurring scans that automatically keep your content safe from potentially plagiarized or unlawful duplication, adding a new layer of protection for your content.

Scheduled Recurring Scans

Unprecedented Search Results​

Easily detect different levels of content duplication and multiple forms of paraphrasing with trillions of pages of original content at your fingertips, along with:

  • 16,000+ open-access journals
  • 60 trillion websites
  • 1M+ internal documents
  • 20+ code data repositories

File Comparison Tool​​

Compare two files against one another to ensure originality and prevent accidental and unintentional plagiarism.

A Reporting Experience Like No Other​

Every accurate plagiarism detector scan gives you a clear, comprehensive, interactive similarity report. Plus, you can download and even choose to share the findings report. It’s all up to you.

Build Your Team​

Invite individual members or an entire department from your organization, set up unique user-friendly scan profiles, view and share Similarity Reports, and more.

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Collaborate without being limited. Invite colleagues, clients, or classmates and share all of Copyleaks’ capabilities with them under one secure account.

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A cloud-based system architecture, military-grade 256-bit encryption with SSL connection, and 100% HTTPS data transferring ensure your complete safety and security. Plus, we are GDPR-compliant and the only SOC2-certified platform.

Plagiarism Detection Where You Need It

Individual use.

Whether you’re a student, a freelance writer, or simply need quick detection, use the Copyleaks Plagiarism Detector today for free.

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Bring the power of the Copyleaks Plagiarism Detector to your native platform with seamless, fully white-labeled API integration.

For Educational Institutions

Our simple LMS integration empowers learning and error-free writing while keeping everything you need in one convenient place.

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Free plagiarism checker by EasyBib

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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.

how to check a research paper for plagiarism for free

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 for more information on helpful EasyBib writing and citing tools.

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

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Writing services to help you avoid plagiarism.

Choose the option that suits you best and get your essay going

Let the writer edit affected pieces following your essay instructions while leaving unaffected parts intact. Order this service only if you are sure of your writing skills and the essay doesn't require a total rewrite.

The best option for all kinds of plagiarism issues includes proofreading and editing. Not only will the assigned writer eliminate plagiarism, but they will also do a complete overhaul, rewrite your essay, and restructure it up to your instructions.


Choose this option if your needs are limited to just pointing out what has to be done to fix rare plagiarism occasions. Writers are very thorough with plagiarism and will provide possible solutions that best match your essay topic.

Free Online Plagiarism Checker with Percentage for Students

When students use online professional writing services, they expect to have original pieces written from scratch and according to their instructions. One of the most critical factors in using online writing services is that the pieces of writing they deliver to students are 0% plagiarism. Most writing companies check for plagiarism percentage but do not offer a free plagiarism checker online for a student to use when he asks, “check my paper for plagiarism.”

Sometimes students have written their essays and papers and want to use a plagiarism detector. They will not find an essay plagiarism checker to use on an online writing service – at least not the majority of them. When writing companies do offer additional resources, such as a free plagiarism checker, students come to trust that they are in the business of helping them rather than just making money. While knowing your plagiarism score is good, it is best to ask professionals " write my paper ," and there will be no plagiarism issues.

Plagiarism Checker for Students

Let’s face it. It’s easy to get a bit sloppy when doing research for a paper. An author’s words are paraphrased too closely to the real thing, a unique idea is not credited to its owner, and sometimes, even a direct quote is not cited correctly. All these things open a student up for charges of plagiarism, even if they write college papers from scratch with the best of intentions. Having a free online plagiarism checker for students, such as that offered by Trust My Paper, gives a student a neutral, objective source to ensure that no instructor will find plagiarized content in what he has submitted. And having a plagiarism detector that is a unique piece of software not used by anyone else is critical. More on that later.

There is also something called “self-plagiarism.” Most students are unaware of this issue, but it is accurate. Suppose a student has written a previous original piece and run through a common plagiarism detector used by many institutions. Now, he is writing a second piece on a similar topic and has decided to use a small percentage of content from that previous piece. Using that same common plagiarism detector will result in repeated content being flagged as plagiarized. Better to catch this with the Trust My Paper plagiarism checker before turning the paper in.

The consequences of plagiarism become more severe as students move through their schooling careers. A middle school student who writes his first research paper is a beginner and may not fully understand the “rules” of plagiarism. Rather than severe consequences, his teacher will probably re-teach those rules, point out what was plagiarized, and have him rewrite those parts. By high school, things get a little more serious, and students can face severely lowered grades on writing that contains plagiarism. Once in college, a student is expected to know the rules and to produce fully original work. Consequences for plagiarism are severe and can even include expulsion. If a student has any concerns about plagiarism, he must find an online plagiarism checking tool with percentage and clear his piece before submitting it. Trust My Paper has that tool.

Benefits of Free Online Plagiarism Checker by Trust My Paper

Let’s look at probably the most common online plagiarism detector – Turnitin. Most colleges use Turnitin campus-wide so that instructors will check papers for plagiarism through this software. And it’s a free plagiarism checker with percentage. Here is a typical scenario. A student finishes a paper and runs it through Turnitin. It gives him 95% originality, which is acceptable. He then submits that essay to his professor. That professor then runs it through Turnitin, and it comes back plagiarized. The student has some explaining to do, even though he did nothing wrong.

This is probably not your biggest worry when dealing with checking for plagiarism. You just want to ensure you have not goofed and plagiarized something by mistake. Often, these are failures to cite sources correctly or to paraphrase too closely. And if you use a good plagiarism checker with percentage, these issues will be identified so you can fix them.

You will not encounter undetected plagiarism issues when you use the free plagiarism checker on the Trust My Paper website. And there are some other significant benefits when you check a paper for plagiarism through our tool:

  • We provide a 100% guarantee of the results
  • We compare your piece with over 1,500,000 pieces of content on the web
  • We support 150+ languages
  • We use the latest, most sophisticated algorithms
  • It’s super easy to use
  • Shows originality in percentage

How Does Plagiarism Detection Work?

Once you have typed in Google “ check my paper for plagiarism,” you simply access it here, on the Trust My Paper website. The rest is self-explanatory:

  • Enter the title of the piece/document.
  • Paste/upload your piece.
  • Check the box that you agree with the “terms and conditions” and then click the “check for plagiarism” box.
  • Let the software do its work and provide you with a full report. That report will include the percentage of originality and point out any and all parts with similarities, along with the sources of those similarities.
  • If you need to fix some things, you can run the piece through the checker again until you have the desired results.
  • Once you have the results you want, you can download your report and turn it in with your work.

Once you have used it, you will believe ours is the best plagiarism checker you will find.

Advantages of Plagiarism Checker by Trust My Paper

Using Trust My Paper online plagiarism checker has several advantages that make it the preferred checker of most clients. These include the following:

  • You get a full report that will let you fix any issues quickly and be confident that you can turn in your work without worry.
  • You can check your paper for plagiarism as many times as necessary.
  • Our free plagiarism checker is free, no matter how many times you want to use it.
  • Your use of our plagiarism checker is confidential, and it is fast. You will get your report, usually within minutes, unless the piece is lengthy.
  • Accuracy is guaranteed because we use the latest software and algorithms.
  • You can drag and drop any type of file you have - .doc, .docx, .txt, .rtf, .pdf, .odt.
  • Our checker is super simple to use. Once you try it, you’ll want to use it for every piece you write.

Can I check my essay for plagiarism for free online?

Yes, you can find an online plagiarism checker in a lot of places online. Quality can vary, though. Scanners that use the most current technology and algorithms will give you a good result. But there is no way to always know if those are in place when you choose a checker and to get the accuracy and completeness you really need. When you decide to use Trust My Paper’s plagiarism, you will get the accuracy and the comprehensiveness you need. You’ll have an overall percentage of originality and a highlighting of any text that is a problem.

As a student, is it free for me to use Trust My Paper plagiarism checker?

Absolutely. No matter what your grade level, no matter where your institution is located, you can access our plagiarism checker for free, as often as you need, 24 hours a day. It supports a number of foreign languages, is fast and easy, and will even scan a large number of sources to ensure accuracy. Our plagiarism checker is one of several free resources we offer to students because we are committed to your success. Helping you make sure your writing work is 100% plagiarism-free is important.

Can I scan my research paper for plagiarism for free?

Yes, of course. Our plagiarism checker will scan, analyze, and report on any piece of writing in any document format. Once the scan is complete, you can then download the full report or have it emailed to you, so you can attach it to your work when you turn it in.

Will your plagiarism report be the same as the one used by my university?

Online plagiarism checkers from different types of programs/scanners will not “look” exactly the same. But the information they all provide will be the same. There will be a percentage of originality, and for most instructors and institutions, it must be 90% or higher. It will point out pieces of content that are too similar to existing content, found on huge databases or elsewhere on the web. The “meat” of any plagiarism checker for students will be the same, just in different sequencing.

Can I be punished for plagiarism?

You bet you can. Younger students who are new to writing essays, papers, book reports, and such will not face the consequences. Their teachers will point out plagiarism and explain why it is wrong. As students get older, punishments will be in place for plagiarism. By the time students are in college, consequences can be mild to severe, depending upon the instructor and the institution’s policies. Our advice? Take no chances. Run everything you write through the Trust My Paper free checker, and submit your work with confidence.

What does a free plagiarism checker with percentage mean?

Many free plagiarism checkers only tell you if your content is original or not. That can be misleading. In truth, almost no content is 100% original. Commonly used phrases, quotes, and other similar content will count as content that isn’t completely original. Don’t forget about self-plagiarism! This is when a student uses their own previous work, but doesn’t cite it. In addition to this, different schools and organizations allow different thresholds of originality.

A free plagiarism checker with percentage doesn’t just showcase spots where there may be issues with originality. It shows you exactly how much of your paper is completely original. This lets you determine if you need to change anything.

All of these are clear reasons why you need a plagiarism checker that provides an accurate percentage. This will allow you to verify that your content is as original as it needs to be.

What percentage of plagiarism is considered bad?

That depends on the standards set by your instructor or school. It also depends on how you are presenting any information you have lifted from other sources. For example, a paragraph-long quote that is properly sourced and attributed is not plagiarism. However, it may show up as content that isn’t original. On the other hand, if you steal a shorter quote, and pass it off as your own thought, without giving credit, that is plagiarism.

In many cases, you can find out what the expectations are. Sometimes, your instructor will publish the percentage of originality they expect in the assignment rubric. In other cases, it will be with the course rules.

Don’t forget to learn what will happen if you should turn in a paper that isn’t completely original. In some cases, the consequences could be failure or expulsion. In other instances, your instructor may simply wish to review your paper to ensure that you have given proper credit.

I cited my sources, is it considered plagiarism?

In some instances, the answer is yes. For example, if you use someone’s exact words, but fail to use quotes, that may be considered to be plagiarism. You can avoid this by properly attributing words using quotes, in addition to citing your source. Sometimes, it is best to paraphrase or reword the statement.

Can you detect plagiarism without a plag checker?

There may be a few things you can do to look for plagiarism in your writing. For example, you can:

  • Do a Google search on passages of your writing to see if it finds matching content.
  • Double-check that all of your writing uses quotations and citations properly.
  • Look for visual cues in your paper. For example, a passage that uses a different font may be something you copied in, then forgot to paraphrase or quote.

You may also ask someone you trust to review your paper.

Unfortunately, while these actions may help, none of them are a decent substitute for a reliable plagiarism detector. Remember that online, plagiarism detection software can quickly access and review more than a million papers, articles, and other content. You simply cannot match that using any other tool or technique. That is why it is best to rely on a high-quality plagiarism checker that gives you an originality percentage.

Is it safe to check for plagiarism online?

Absolutely! In fact, this is the safest, most convenient method there is. Did you know your instructor or employer will likely use an online checker to ensure your work is original? It only makes sense that you would gain peace of mind by having your writing double-checked for plagiarism by a company that is established in the field of academic writing. Here are some things to consider as you look for a plag checker online:

  • Does the service have connections with reputable academic databases?
  • Have students been satisfied with their experiences with this service?
  • Is it easy to use the plagiarism checking tool?
  • Does the company that offers the service have an excellent track record in the field of academic writing?
  • Will the tool check for self-plagiarism?
  • Can the student expect to receive an accurate number that reflects their originality?
  • Is there multiple language support?
  • Is it free?
  • Can you use the plagiarism checker multiple times for a single paper?

Our plagiarism checker has all of these features. Further, you may drag and drop files, or use copy and paste. All standard file formats are supported.

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14 Best Free Plagiarism Checkers Online – 2023

Best free online plagiarism checkers 2023

Dr. Somasundaram R

Best Free Plagiarism Checker

Table of contents

Why plagiarism checkers, 5 important questions to ensure before giving your content to a free plagiarism checker, best free plagiarism checkers online overall list, 1., 2., 3. plagiarism checkerx, 4., 5., 6. – free plagiarism checker, 7., 8., 9., 10., 11. viper plagiarism checker, 12. copyleaks plagiarism checker, 13., 14.

  • How to Choose the Best Plagiarism Checkers

Recent Best Plagiarism Checkers List 2023

Plagiarism is a serious offense that can hurt your academic or professional career. To avoid accusations of plagiarism, it’s important to use a plagiarism checkers to ensure that your work is original.

There are many different plagiarism checkers available, so it can be difficult to choose the right one. In this article, we’ll compare the best plagiarism checkers of 2023 and help you choose the one that’s right for you.

Plagiarism is not happening with intention. most of the time, it appears by mistake in your thesis. Even a single inaccurate citation also considered being plagiarism. To identify plagiarism, there are many free plagiarism checkers available online.

Identifying unoriginal content, reducing similarity, and improving the quality of your thesis with some effective free plagiarism checker tools are very important before submitting your thesis.

In this article, ilovephd provides the 10 free plagiarism checker tools available online for your thesis correction.

Risk Factors of Free Plagiarism Software

When it comes to free plagiarism software, the first thing that comes to your mind is content theft .

There are hundreds of free plagiarism-checking software available online but still, it would be difficult to recommend a free tool to check plagiarism. Let’s see some of the major reasons why researchers refuse to use free plagiarism software.

  • How are plagiarism-checking tools earning?
  • Does that plagiarism checker store and sell your content?
  • How effective that plagiarism checker is?
  • Does the end report accurate?

By finding the answer to these questions, you can go further to take a plagiarism report in the free tools. With these important questions, we analyzed more than 50 free tools and shortlisted 10.

Most of the tools given in the list are earned by Google Adsense also ensures the data protection of the unpublished scientific thesis content.

Here are some of the best free plagiarism checkers available online:

  • Grammarly: Grammarly offers a free plagiarism checker that scans your text for duplicate content and provides a similarity percentage. It’s user-friendly and integrates well with your writing process.
  • Copyscape: Copyscape is a dedicated plagiarism checker that can be used for free to find duplicate content online. It’s especially useful for verifying if your content has been copied by others.
  • DupliChecker: DupliChecker provides a free and user-friendly plagiarism checker that scans your content for similarities and generates a plagiarism report.
  • SmallSEOTools: SmallSEOTools offers a comprehensive suite of SEO and content-related tools, including a free plagiarism checker. It’s simple to use and provides detailed reports.
  • Plagscan: Plagscan offers a limited number of free checks per month. It’s known for its accuracy and is commonly used in academic and research settings.
  • Quetext: Quetext offers a free plagiarism checker with a simple interface and the ability to upload documents for scanning. It provides a similarity percentage and highlights potential issues.
  • PaperRater: In addition to grammar and spell checking, PaperRater offers a free plagiarism checker that provides an originality score and identifies potential sources of plagiarism.
  • Prepostseo: Prepostseo offers a free plagiarism checker that allows you to upload documents or check text directly on their website. It provides a similarity percentage and highlights duplicate content.
  • Plagiarisma: Plagiarisma is an online plagiarism checker that supports multiple languages and checks content against a wide range of sources on the web.
  • PlagScan (Free Trial): While PlagScan offers a paid service, it also provides a free trial version that allows you to check a limited number of documents for plagiarism

10 Best Plagiarism Checkers Free for Thesis, Research Paper, and Assignment

Best Plagiarism Checkers for Free

Duplichecker is a free online plagiarism-checking software developed for proofreading, editing online content, and plagiarism chinking for students and academic writers. this site gives the best accuracy of output with a statistical report by using their tools.

Best Plagiarism Checkers for Free

Plagiarism software is one of the famous free plagiarism checkers online . This tool was designed in a way to help academic writers to analysis their text documents. This free plagiarism checker performance accurate and gives all possible details about the document.

Best Plagiarism Checkers for Free

This software is designed to detect duplicate content against your given documents/text/thesis which helps students, teachers, universities, colleges, and academic writers to check the originality of their content over plagiarized material.

Plagiarism CheckerX software’s trial version is FREE to download but has some limitations. But still, it performs better in the free version for small chunks of the document.

Best Plagiarism Checkers for Free

PlagScan is another leading plagiarism checker tool with strong privacy and legal compliance. PlagScan ensures the uploaded documents will never be shared with unauthorized third parties.

Best Plagiarism Checkers for Free

Plagramme plagiarism checking software works deeply to check the citations, online contents, and academic documents. plagramme reports if traces of repeated paraphrasing and copied content are found in your thesis.

Best Plagiarism Checkers for Free

Small SEO Tools offers a Best Free Plagiarism detector which gives deep insights of the document with respective copied URLs. This free plagiarism tool helps millions of students and writers to check the plagiarism every day.

Best Plagiarism Checkers for Free

Plagiarisma is a free plagiarism checker tool which also available for Android devices. This easy and free plagiarism tool helps you to check plagiarism in an effective way.

quetext ilovephd

  Quetext is a leading plagiarism-detection software, providing services to over 2 million teachers, students, and professionals worldwide. Quetext is to empower writers with a sense of security in their work.

easybib ilovephd

EasyBib Plus plagiarism tool provides all-in-one support to cover all your bases. The premium version of the software covers more futures.

With a single scan, you’ll receive personalized feedback to help identify potentially missing citations and help improve your sentence structure, punctuation, grammar, and more.

Best Plagiarism Checkers for Free

Noplag provides a detailed plagiarism report that you can send and share. So don’t let plagiarism issues slow you down anymore, deal with them in the fastest and most effective. it offers various services such as plagiarism checkers for universities, colleges, schools, students, teachers, and academics.

Viper Plagiarism Checker is an online plagiarism detection software that scans documents for potential plagiarism. It is used by students, teachers, and professionals to check for plagiarism in written work. It compares the content of a document to a vast database of online sources, including websites, journals, and other documents, to detect any potential plagiarism.

Copyleaks Plagiarism Checker is an online tool that helps you detect plagiarism in your content. It scans your content for plagiarism against billions of online sources and provides you with an instant report. It also helps you identify the sources of plagiarism and provides you with a detailed report on the plagiarism check. Copyleaks Plagiarism Checker can be used to check academic papers, articles, blog posts, and other types of content.

2 Best Paid Plagiarism Checkers for Thesis, Research paper, and Assignment (Recommended Versions)

TURNITIN ilovephd provides a premium version of services to students and institutions with 10 types of plagiarism based on findings worldwide.

Each type has been given an easy-to-remember moniker to help students and instructors better identify and discuss the ramifications of plagiarism in student writing.


iThenticate is the leading provider of professional plagiarism detection and prevention technology used worldwide by scholarly publishers and research institutions to ensure the originality of written work before publication. iThenticate helps editors and authors prevent misconduct by comparing manuscripts against its database of over 60 billion web pages and 155 million content items, including 49 million works from 800 scholarly publisher participants.

iThenticate helps editors and authors prevent misconduct by comparing manuscripts against its database of over 60 billion web pages and 155 million content items, including 49 million works from 800 scholarly publisher participants.

How to Choose the Best Plagiarism Checker s

When choosing a plagiarism checker, there are a few things you’ll want to consider:

  • Price:  Plagiarism checkers can range in price from free to hundreds of dollars per year. Choose a plagiarism checker that fits your budget.
  • Features:  Some plagiarism checkers offer more features than others. Make sure the plagiarism checker you choose has the features you need, such as a plagiarism report and a grammar checker.
  • Ease of use:  Plagiarism checkers should be easy to use. Choose a plagiarism checker that’s easy to understand and navigate.
  • Reliability:  Plagiarism checkers should be reliable. Choose a plagiarism checker that has a good reputation and that’s been used by others.

Plagiarism is a serious offense that can have a negative impact on your academic or professional career. To avoid accusations of plagiarism, it’s important to use a plagiarism checker to ensure that your work is original.

Ensuring the originality of your content is essential, and the best plagiarism checkers mentioned above can assist you in avoiding the severe consequences associated with plagiarism.

By considering factors such as content database size, user interface, additional features, and pricing plans, you can select the most suitable plagiarism checker to meet your specific needs. Invest in these reliable tools to enhance your writing integrity and achieve peace of mind.

There are many different plagiarism checkers available, so it’s important to choose the right one for your needs. In this article, we’ve compared the best plagiarism checkers of 2023 and helped you choose the one that’s right for you.

We hope this article helps you to choose the right plagiarism tool to check your thesis, research manuscript, and assignments.

You Might Also Love to Read 10 Types of Plagiarism – Every Academic Writer Should Know
  • Turnitin: As a leading plagiarism detection tool, Turnitin excels in its comprehensive content database and its ability to provide links to original sources. It offers a user-friendly interface and is suitable for academic purposes.
  • Grammarly: While renowned for its grammar-checking capabilities, Grammarly also offers a powerful plagiarism checker. It is versatile, capable of detecting plagiarism in various types of content, and provides helpful suggestions to improve language usage.
  • Copyscape: Copyscape specializes in detecting duplicate content on the internet. With its robust search capabilities, it is an excellent tool for bloggers, website owners, and content creators.
  • Plagscan: Plagscan stands out with its advanced plagiarism detection algorithms and integration options. It caters to both academic and professional users, offering accurate and detailed reports.
  • DupliChecker: DupliChecker is a user-friendly plagiarism checker that allows you to scan text up to 1,000 words for free. Its simplicity and quick analysis make it suitable for casual users.
  • Quetext: Quetext provides a reliable plagiarism detection system with an intuitive interface. Its extensive database and contextual analysis help identify similarities in content effectively.
  • Small SEO Tools Plagiarism Checker: Small SEO Tools offers a free plagiarism checker that scans text for duplicate content. It provides a basic but useful service for quick plagiarism checks.
  • Unicheck: Unicheck focuses on academic plagiarism detection, offering integration with various learning management systems. Its comprehensive reports and intuitive interface make it an excellent choice for educational institutions.
  • Plagramme: Plagramme offers a user-friendly interface and accurate plagiarism detection. It provides detailed reports and is suitable for both academic and professional users.
  • Scribbr Plagiarism Checker: Scribbr’s plagiarism checker is specifically designed for students, providing comprehensive reports and guidance to improve academic writing. It integrates seamlessly with other writing tools.
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Dr. Somasundaram R


Indian researchers spent $17 million in 2020 for oa journals, diary of a phd student.

[…] 10 Free Plagiarism Checker Tool for Thesis […]

[…] all your Journals, Magazines, Book Chapters, Thesis, and other materials in an organized […]

The info talked about within the write-up are a number of the best offered.

This list is very useful and can across some of the new tools with the help of this list. Thank !

Nice!! This article offers tips on how to write a research paper without plagiarising, which is crucial.

Great!! This is an effective tool for checking for plagiarism. The collection of resources is excellent for essay writers.

Hi team! How do I get a plagiarism check/type that that check an unlimited words in a manuscript for free of charge?

Thancks great dr

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Plagiarism Checker

Check-Plagiarism offers a reliable plagiarism checker that is widely used to detect plagiarism. Our plagiarism detector offers deep plagiarism detection for writers as well as students in schools, colleges and universities. To use this tool, enter your content below and click on the button.  



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  • Sentence wise results
  • Matched Sources
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Features of Check-Plagiarism

Our tool helps to check plagiarism in your essays, assignments, and blogs. There are many helpful features we have developed in our tool. Here are some of the main ones:

Fast & Accurate

Our plagiarism checker scans your text against billions of web pages & online resources. You can check up to 1,000 words at once. (For premium users, the word limit is increased to 20,000).  Upgrade to pro in just $7

100% Safe & Secure

All files and documents checked with our free plagiarism checker are 100% safe & secure. Your data is completely secure on our servers. No user/search engine/crawler can access your data in any capacity.  

Multiple files support

You can check copied content in up to five documents at once (supported formats: doc, docx, txt, and pdf). Scanning multiple papers will not decrease the speed of the tool. You can also compare documents for plagiarism between them.

Easy-to-Use UI

Our plagiarism checker has a very easy-to-use interface. It provides a simple process to check for content similarities. You can generate a detailed report with percentages.   

Enhanced Reporting with the percentage

Our plagiarism detector scans your text with online resources and provides a complete report with percentages. It helps you to check which sentences of your content are unique and which are plagiarized.

Sentence based checking

Our tool scans every single sentence and compares it with all online resources to detect plagiarism. It uses advanced AI algorithms to detect paraphrased plagiarism.  

  Relevant Tools

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

Why Check-Plagiairsm?

Online plagiarism checker 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.  It is important for students to check their papers for plagiarism because plagiarism 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 plagiarism checker tool to ensure that their students are submitting original work. Our tool can help teachers quickly identify plagiarism in student work, so they can take appropriate action. 

By using our tool 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 own ideas

Prevent grade inflation: If plagiarized work is undetected it can lead to grade inflation that can damage the integrity of the institution. It is also important to maintain the reputation 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 : Plagiarism 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 and properly cited.

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

Plagiarized content can damage the reputation and credibility of a website.

It's also important because  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 use this tool to protect the documents of their clients. 

Check more details about how to avoid plagiarism . 

plagiarism checker

How to use this 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.


Exclude the URL (if any) from the “Show Advanced” option. This URL will be ignored while checking for plagiarism, any text copied from the excluded URL will be marked as unique content.

Click on the Check Plagiarism button. We have added recaptcha security to avoid robots. 

All done? No extra steps are needed. Our free online plagiarism checker will scan the given content against millions of online resources and generates an accurate plagiarism report with percentage. With our Deep-Search technology, our tool can also detect paraphrased plagiarism .  

how to use plagiarism checker

Frequently Asked Questions?

  what is considered plagiarism.

how to check a research paper for plagiarism for free

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 not properly cited. While if you copy and paste but cite the source with proper formatting then it's not plagiarism.

  Is the usage of plagiarism-checking tools Illegal?

Educational institutions highly recommend plagiarism-checking tools to prevent copying of others’ work. Even research work is not considered authoritative without a plagiarism report. So using plagiarism-checking tools is legal and necessary.

  What are the consequences of plagiarism?

Plagiarism involves serious consequences as its a crime.

Its Academic consequences range to:

  • Failing the assignment
  • Failing the course
  • Institute Suspension
  • Expulsion from institution

Its Legal consequences cost you:

  • Intellectual Damages
  • Criminal Charges
  • Loss of your employment

Its Personal consequences can affect you with:

  • Loss of credibility
  • Damage of Reputation
  • Damage to professional relationships
  • Slowing down your career, especially in Education

We Cover Multiple Platforms

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

Content is first parsed into sentences and then every sentence is checked for plagiarism. If any duplication is found against that sentence, it will be marked in red and if that text is unique, it will be shown in green.

Comparing your content

All results are displayed in real-time. You can compare your content with any of the matched URLs with just one click. You can also use this plagiarism tool directly on the plagiarism comparison tool page.  

Happy Customers

Our 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.

Nadia Moeen

This free online plagiarism detector is amazing; it checked 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 my papers. Best plagiarism checker for students.

Moosa Ali

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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Making your Research easy

Best plagiarism checker for research papers free

Best plagiarism checker for research papers free

If you are a Writer, Author or Researcher then you may have faced the problem to check the Plagiarism of your own written research paper or manuscript before submitting it. In this article, we will discuss the Best plagiarism checker for research papers free.

Best plagiarism checker for research papers free.

You might hear the word “ Plagiarism” or “Plagiarism of your paper” several times while writing your research paper for any conference or journal publication.

Your guide or friends may have suggested you to check the Plagiarism of your paper before submitting it to any International Journal or conference.

So, what is the importance of checking the Plagiarism of your paper? How to do that? Read this article till end you will get the complete details.

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What is plagiarism in research?

There may be many definitions of Plagiarism. If we tell you in most simple words then it’s like stealing someone’s content/ idea and representing it as your own without the consent of that person .

In the field of research, if you use the content, research findings, the proposed model, figures, statistics, pictures of someone else and represent and include it in your own paper then it will be treated as Plagiarise content or paper .

The originality of the paper or manuscript gets reduced if you do this.

Also read: How to convert a Ph.D. thesis into a journal article

Is plagiarism a crime?

Although plagiarism in some contexts is considered theft or stealing, it is not in itself a crime , rather it can constitute  copyright infringement.

In academia and industry, it is a serious ethical offense. You may face legal proceedings from the original owner of the content/research paper.

How to check plagiarism?

After writing your research paper, check the plagiarism of your research paper which will show the originality of the paper.

The chance of getting selected in your paper increases if you keep the originality of your paper high.

Here are some of the best free plagiarism checkers . Most of them are free but in some cases, they may charge some money for the extra services or for more number papers.

Best free plagiarism checker 

  • Get the Best Offer here
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Don't get caught plagiarizing

These are some of the Best plagiarism checkers for research papers free which you can use in your research career.

There are also some plagiarism checker softwares that you can download on your computer and check. We suggest you must use a plagiarism checker online only because it will show you the best results and the copied content source.

Final words

We hope you have liked our topic Best plagiarism checker for research papers free. Please comment below if you are using any other plagiarism checker. If you have liked the topic then please share it.


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