Best 15 Online Plagiarism Checker with Percentage for Free

Information is a vital part of knowledge, and now information is all around us. It can be on books or the world wide web. So all the knowledge of the world is just a click away. Copying or taking information or a piece of content form someone without their permission is not a good practice. It is a theft of a kind, and all theft should be penalized. I meant to say if I copy content or parts of an article written and published by someone without informing them, then it is a crime in itself. But sometimes, when writing an essay or a guide for a website or blog, we might need to take help from a reference work. It doesn’t mean that one can copy all of it and publish it as his own. Sometimes the copy could be a mistake, or the writing style could be the same as someone else. So, I have taken the endeavor to discuss about the Best Online Plagiarism Checker with Percentage for Free.

Now how can we find out if the article you wrote is genuine and unique? The answer is that several online plagiarism checkers can help you identify the problem and help you solve it. 

What is Plagiarism?


The exact definition of plagiarism may differ from person to person. But let us look at the basic definition so that we have an idea about what we are talking about.

According to the University of Oxford’s Student Guide* Plagiarism means,

According to the University of Oxford’s Student Guide Plagiarism means,The acts below are considered as Plagiarism according to the ‘Merriam-Webster online dictionary’: –

The acts below are considered as Plagiarism according to the ‘Merriam-Webster online dictionary’So we can summarize Plagiarism as,

It is an act of copying a writer’s or content creator’s published or unpublished literature from a document on paper or a digital copy and publishing it as someone’s own.

Common Types of Plagiarism


We first know what falls under plagiarism to prevent it or remove it from our content. There are several types of plagiarism, and here I’ve mentioned some of the most common types of plagiarism-

  • Complete Plagiarism

Complete plagiarism is the worst kind of plagiarism. It means copying a writer’s or researcher’s entire work (manuscript or study) and publishing it under someone’s name. It is a kind of intellectual theft.

  • Direct Plagiarism

Direct Plagiarism refers to copying from other’s writing documents. Normally, it occurs for copying without quotation marks and copying word by word from different sources.

  • Self or Auto Plagiarism

Self or auto plagiarism is also known as duplication. It occurs because of copying the content of previous publications without citation.

  • Paraphrasing

As pointed out by Wiley.com, it is ‘the most common type of plagiarism’. Paraphrasing is publishing someones else’s writing with some minor changes. It is kind of re-writing the article with little changes but keeping most of the original work.

  • Accidental Plagiarism

When the copy of an article is by mistake or for negligence, it will be labeled as accidental plagiarism. Mistake or negligence can not be an excuse to copy someone else’s work. So it is also plagiarism and theft.

Does Plagiarism Harm Your Website’s SEO?


The answer is Yes. It will surely harm your website’s reputation. Google and other search engines are fast at identifying copy content. When the SEO finds out that your work is a copy of someone else’s work, it triggers a system. As a result, your website’s ranking drops. Your content won’t be visible on the first page of the search page. Plagiarism also triggers Google to penalize your website, which means if you have a certain number of plagiarised content, then your site may be banned or blocked by Google.

SEO automatically ranks every website. The top-ranked sites are shown on the first page of the search interface when someone searches for a topic. When SEO or Google AI finds out plagiarised content, it will reduce your website’s rank. You will get fewer visitors on your page. You will earn nearly zero money from advertisements and other offers. You are failing the site. 

Always remember plagiarism is a complete no in SEO. Publish 100% unique and authentic work. Never resort to copying and ripping off someone else’s content.

Tricks to Prevent Plagiarism


There are some tricks to prevent plagiarism. You can use them to make your content unique and Improve Your SEO.

  1. Do not copy and paste. Understand the topic and write on your own.
  2. If you have to copy an author’s or book’s saying, put it in a quotation mark or reference the original author/ source.
  3. Use citations if you have to copy a large part of any published work of another author.
  4. Use an online plagiarism checker or plagiarism software. (Check out this guide to find the best plagiarism checker)

Plagiarism checker or Content Similarity Detection


It is the process or method of finding if any plagiarism is in literature. When we talk about the online plagiarism checker, it is an online tool that helps to detect plagiarism in content. When you submit one writing to a plagiarism detector, it takes your article and finds possible matches of the writing on the entire web. It is similar to how you search something on Google, but it is far more complicated. Every free online plagiarism checker searches the internet to find any similarity between your work and any other published work. The plagiarism checker software also works in the same way.

The Best Plagiarism Checker With Percentage?


I’ve looked over several online ‌ plagiarism ‌ checkers and collected the best free online‌ ‌plagiarism‌ ‌checker‌s with percentages. Some of them allow you to check unlimited words, and some may impose limits on the words. So let us start the guide-

1. Grades Fixer- Best Online Plagiarism Checker for Students


Grades Fixer- Best Online Plagiarism Checker for StudentsGrades Fixer is a free online plagiarism checker for students. It is one of the best plagiarism checkers with percentages. The service of Grades Fixer is specially targeted towards students, but anyone can be benefited from Grades Fixer. This free plagiarism tool detects any plagiarised content fast and accurately. It is easy to use. You can either paste your work on the designated box or drag and drop the .docx/ .pdf file to check for plagiarism. It is free of cost. No registration is required. You only need to accept their cookies to start the process. It takes around 10- 15 seconds to complete the process. They offer the best high-quality check involving any plagiarised content.

Grades Fixer search for in-depth plagiarism. Another great thing about Grades Fixer is that it identifies the original content and shows it in the report. You can use it as a plagiarism remover. It allows real-time editing. So if there is any plagiarized content, you can easily edit it search again. It also provides the user with a detailed report. So that you can see what part of your essay is plagiarized in percentage. On Grades Fixer, you can also hire a writer to write and remove plagiarism from your content if there is any. There is a lot of plagiarism checkers on the net, but among them, Grades Fixer is one of the best. You can use this free online plagiarism checker to check your writing.

 Key feature:

  • High-quality check
  • Simple to use
  • Fast identifying the source
  • Real-time paper editing
  • Free of cost
  • No word limits

Accuracy level: 90%

Word Limit: Unlimited.

Pricing details: Free.

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2. Plagiarism Checker by Website SEO Checker


Website SEO CheckerPlagiarism Checker by Website SEO Checker is a plagiarism checker that was created, keeping in mind the content writers and copywriters. It will surely benefit any content writer. I myself, as a content writer, often use this site too. This plagiarism checker with percentage will deliver the accurate result with percentage. This free tool covers the entire web to give you the most genuine result. If there is any plagiarized content, the site will show you the source and how much of it has been copied (in percentage). There are no forms to fill or register.

Plagiarism Checker by Website SEO Checker is free to use. Though it does not support unlimited word searches, it allows the users to check any article up to 10,000 words. This number is enough for any web content. It covers nearly 40 pages. I think that is enough for any content writer. Unlike some other plagiarism checkers, you can not edit your content on the page as it does not support that option. And it doesn’t mark what part of the content was plagiarized. It just shows in percentage how much was copied from another source.

Other than that, this plagiarism checker software is best in its class. Plagiarism Checker by Website SEO Checker gives the users nearly 100% accurate results. This plagiarism tool is safe to use and protects the privacy of the users. It does not save any content that you searched or checked on it. The algorithm is quite efficient in handling its job. You will surely be satisfied with the service. 

 Key feature:

  • Most accurate
  • Easy to use
  • Simple site design
  • Results with the detailed percentage
  • Less than 15 seconds to complete a check

Accuracy level: 99%

Word Limit: 10,000 (Ten thousand words).

Pricing details: Free

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3. Advance Plagiarism checker (SEO TOOLS KIT )


Advance Plagiarism checker (SEO TOOLS KIT )The SEO TOOLS KIT’s advanced plagiarism checker is the best plagiarism checker that allows its users to search up to ten thousand words for plagiarism content. It is entirely free of cost. You don’t need to sign up or fill up any form. But you will be asked to prove that you are not a robot by completing an image re-captcha. It has a maximum of 10000 words limit per search. You can copy and paste your content. You can not upload your file like some other online plagiarism checker. And unfortunately, you can not edit while the checking is in progress.

The SEO TOOLS KIT doesn’t support editing. The report that SEO TOOLS KIT’s advanced plagiarism checker provides is well detailed. The result shows in percentage how much of your content is unique. Though it marks the content that has been matched, the source is not shown. Any article you check at the site is safe and secure. Your content is not saved on the server. The site’s design is simple and eye-catching.no annoying ads if you have an ad blocker. It might ask you to disable the ad blocker, but you can use the site without turning off your ad-blocker. To make your content plagiarism-free, this free online plagiarism tool can help you in the long run. 

 Key feature:

  • No registration.
  • You need to complete a re-captcha
  • Free of cost
  • Excellent site design
  • Accurate detection ability 

Accuracy level: 95%

Word Limit: 10,000 (Ten thousand words) 

Pricing details: Free

4. Studyclerk.com – Best plagiarism checker with percentage


Studyclerk is the best online plagiarism checker with percentage. They offer a 4000 words search option for your writing. You can simply copy and paste your content or essay on the page to check for plagiarized content. You can also import your file (.pdf, .doc, .docx, .txt, .rtf, .odt) from your device and check. They ensure your privacy and security of your content. This online plagiarism checker doesn’t save your content on their server. So there is no chance of theft of your content from the site. After checking for plagiarized content, the site shows the result in percentage and in-detail. You can access the site 24/7 and from any device. The site is also mobile-friendly, so you can easily use it on your mobile device. You don’t have to fill up any form or register to use Studyclerk.

Studyclerk plagiarism detector is easy to use. No complicated task or annoying ads are visible. It does not impose any limit on words for its users. The site is reliable in finding the plagiarized content, if any. It will give you a summary report on your search. It takes 1 to 5 minutes to complete the process. Studyclerk is pretty reliable when it comes to the detection of plagiarized content. They claim to search the whole web to match for any similar content. Studyclerk is an awesome free online plagiarism checker with a percentage. It can benefit from students to teachers and every content writer out there. Studyclerk’s plagiarism detection machine will be helpful in your literature work.

 Key feature: 

  • 24/7 accessibility
  • Free of cost
  • No registration required
  • Ease to use
  • Reliable 

Accuracy level: 95%

Word Limit: 4000 (Four thousand words).

Pricing details: Free.

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5. Paper Ratter 


Paper Ratter It is a plagiarism checker with percentage. Paper Rater has both a free and paid version. The free version lets a user check up to 4,500 words per search. You can search for an unlimited version of the premium version. The site is easy to use. The detection process is fast, and the result is shown in percentage. You can either copy and paste your article on the site or upload a document file.

Paper Rater supports all major types of digital doc files. It takes less than a minute to complete a search. You can also use this free online tool to check for other writing errors. The accuracy level is decent for day to day use. It will enormously benefit school and college students to find out any plagiarism in their article. The website design is also eye-catching. You can print your report if you wish. To use the site paste or upload your file, click on the terms of service, and then hit the ‘Get Report’ button. Within a moment, you will get your result in a percentage. Paper Rater is undoubtedly one of the top free online plagiarism checkers with percentages.

Key feature: 

  • Unique site design
  • Easy to use
  • Advanced plagiarism scans powered by AI technology
  • In detailed result in percentage
  • Accuracy level good
  • Supports all type of document file

Accuracy level: 90%

Word Limit: 4500 (Four thousand & five hundred words) 

Pricing details: Upto 4500 words for Free; $11.21/ month for unlimited word search.

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6. Eduzaurus – free online plagiarism detector


Eduzaurus - free online plagiarism detectorEduzaurus is an online plagiarism detector with a percentage. It is free plagiarism that helps the user to identify any plagiarized content. You need not fill up any registration form or subscribe to any plan to use Eduzaurus. They claim to compare your content with more than 10 million resources. It is really easy to use. The site’s design is attractive. The options and tools are well organized. The result is shown in detail. A list is provided with the possible match of the content with other sources. You don’t need t install any plugins or software. It is best suited for desktop but also works on any mobile device. The free plagiarism tool is fast when it comes to doing its job. There are no ads to distract you.

Eduzaurus detector also shows a plagiarism risk score in percentage. You can copy and paste your content to check for plagiarism or upload a document file too. They support .pdf, .doc, .docx, .txt, .rtf, .odt file formats. You can check up to 19,900 characters (<3,500 words) for plagiarism. The report marks the content that has been matched to other sources, and it also shows the link of the source. You can search again and again without any worry and get the perfect result. You can also download the report in a pdf file if you want to. So use Eduzaurus to get a 100% unique content and increase your value as a content writer. Your search for plagiarism checker 3000 words free might come to an end with this one.

Key feature:

  • Highlights any possible text matches
  • 100% confidential
  • Fast and convenient
  • No signup required
  • No annoying ads on the site
  • Gives plagiarism risk score in percentage

Accuracy level: 98%

Word Limit: <19,900 characters / about 3500 (Three thousand & five hundred words)

Pricing details: Free

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7. Papers Owl Online Plagiarism Checker


Papers Owl Online Plagiarism CheckerWe have Papers Owl on our list next. It is a plagiarism checker with percentage. Papers Owl is free to use. It allows its users <19,900 characters (< 3,500 words) limit per search. You are not required to sign up to use this plagiarism detector. The tool gives results in detail. It marks the copy content in red color. The source is indicated in percentage. You can see how much content is copied from a source in percentage. The accuracy level is pretty good of Papers owl. You can either paste your article on the site or upload a file.

Papers Owl allows the users to check PDF, DOC, DOCX, text, and RTF files. You can edit the text if you paste it. You can use this tool as much as you want. The site is advertisement free. You will need to add a title to your check. One thing that you should consider that they store your article on their server for future use. It means if anyone else writes anything similar to your content so that they can compare it. It is done to increase their accuracy level. Anyone can take the help of Papers owl to increase the value of the writing.

 Key feature:

  • No need to sign up
  • Supports any type of document file
  • In detailed result in percentage
  • Accuracy level high

Accuracy level: 95%

Word Limit: <19,900 characters / about 3500 (Three thousand & five hundred words)

Pricing details: Free

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8. Small SEO Tools- Plagiarism Checker


Small SEO ToolsSmall SEO Tools- Plagiarism Checker is a 100% free plagiarism checker.you can search up t three thousand (3,000) words on the free tool. This tool provides you with the exact percentages of how many percents of content is unique and how much is plagiarized. It will mark the portion in red that is matched with other sources. But it does not show you the source. You don’t have to fill up any forms an o sign up is required to use Small SEO Tools- Plagiarism Checker. You can copy and paste your writing or upload a document file. You can upload the file as txt, pdf, RTF, Docx, doc, and odt format. You can provide a URL address to check for plagiarism too. You can share your plagiarism report with your friends with the share button.

The plagiarism machine checks your content against more than a billion sources over the internet. One amazing feature of this toll s that it supports multiple languages. In the plagiarism checker, each sentence is checked correctly to give you the best result. The plagiarism checker works comparatively faster. You can also rewrite the plagiarized material with this plagiarism checker. Small SEO Tools- Plagiarism Checker is reliable and technically advanced to solve all of our cases related to your content’s uniqueness and remove plagiarism.

Key feature:

  • It Supports most types of document files.
  • Supports many languages
  • Shows result in a percentage.
  • It Marks the plagiarized portion of the content.
  • Free of cost.
  • No signup
  • Advertisement free

Accuracy level: 95%

Word Limit: 3000 (Three thousand words) 

Pricing details: Free

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9. ChecSEO


ChecSEOChecSEO is next on our list. This is also an SEO tool that helps the content writers to check their content online. This free online plagiarism tool has its word limit to 3000 words per search. The design of the site is simple and easy to use; you can simply copy (ctrl+c) and paste (ctrl+v) the article and click check to find out if there is any plagiarized content. It takes from 10 seconds to 3 minutes to complete a check, depending on the total word count. After the process has been completed by this free plagiarism tool, it shows how much of your content is unique in percentage. The report is shown in a table on the site. The portion which has been a match to another source is shown in the display. But unfortunately, it doesn’t show the source. I mean ChecSEO doesn’t show its user from where it has found a match.

ChecSEO just displays the plagiarized content as ‘Already Exists’. Apart from this, the site is accurate in finding any copied content. They claim to be 100% accurate, but to me, it seemed to be 93% – 95% accurate while conducting a test search. ChecSEO is a functional tool where you can check for 3000 words to find plagiarism. 

Key feature:

  • Shows results in percentage
  • Marks the portion that is plagiarized.
  • Easy to use
  • Free of cost
  • Simple site design

Accuracy level: 93%

Word Limit: 3000 (Three thousand words).

Pricing details: Free

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10. Peachy Essay Plagiarism Checker


Peachy Essay Plagiarism CheckerPeachy Essay Plagiarism Checker is a free online plagiarism checker with a percentage with no word limit. This plagiarism checker helps you to check unlimited content for plagiarism. Using the site is secure. But I’m not satisfied with the accuracy level of this tool. It is perfect for regular use, but for a professional, it might not meet with all the expectations. The result is quite detailed. It shows how much of your content is plagiarized. You can use this tool to complete your plagiarism detection. You don’t have to fill up any form or captchas.

Peachy Essay Plagiarism Checker is entirely free of cost. It takes less than 5 minutes to complete a search. Peachy Essay Plagiarism Checker enables the users to simply paste the content on the sie to check for plagiarized content. Choose what type of article you are submitting fr a chek and type in the title. Next, paste the content and click on ‘Check my essay’. The tool will start its work and after completing it will give you the result in plain text. 

Key feature:

  • Free of cost
  • Unlimited word search
  • Works relatively fast

Accuracy level: 85%

Word Limit: Unlimited

Pricing details: Free

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11. Dream its Advanced plagiarism checker


If you are looking for plagiarism checker 3000 words free, then Dream its Advanced plagiarism checker could be the best choice for you. It is a free online plagiarism checker tool. The site is easy to use and hassle-free. You can paste your article and search for any plagiarism. The result showcasing is also high. It gives you the percentage of the uniqueness of your content. It will mark the portion in red that has been a match to another source. But it doesn’t show the user the source. The accuracy level of this free plagiarism remover is pretty good.

This plagiarism tracker is part of the dreamits.org’s SEO tools collection. They know that article is the main asset of a site. So they try their best to present to you a decent plagiarism detector. This tool allows you a maximum of 3000 words limit per search. You can not edit and check the content. But you can check your content as much as you want. You can correct the content in an editing tool like MS Word or Google Doc and try checking for any plagiarism content. Use this plagiarism detector to get perfect plagiarism removed from the article.

Key feature:

  • 100% free
  • No sign up required
  • Plagiarism report with percentage
  • Marks the portion that is plagiarized 

Accuracy level: 90%

Word Limit: 3000 ( Three thousand words) )

Pricing details: Free

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12. Copyleaks – best-paid plagiarism checker


Copyleaks - best-paid plagiarism checkerNext, we have a free online plagiarism checker with a percentage named Copyleaks. It is one of the top-rated plagiarism checkers. You can check up to 2,500 words on the free version of this plagiarism detector, as it is mainly a paid tool. If you want an online plagiarism checker with percentage with no word limit, then you should consider upgrading to a paid version. But we will talk mainly about the free features here. You will need to register to use the free version of Copyleaks. It has an advanced plagiarism scans powered by powerful AI technology.

Copyleaks tool is only one on this guide that can give you a 99% accurate results. Another thing about this free version of the Copyleaks is that you will get a detailed report of your check. With the help of this tool, you can even compare your own documents to one another. You can scan for your text in more than one hundred languages. This tool can detect a wide variety of plagiarism, not only match but also paraphrasing and more. You can paste your content or upload file for detection. This online plagiarism checker supports the various file format (pdf, Docx, and more). You can use this plagiarism detector to make your article genuine and 100% unique.

Key feature:

  • You have to register to use
  • Advanced plagiarism scans powered by AI technology
  • Detailed plagiarism scan and complete similarity reports
  • Compare your documents to one another
  • Scan text in more than a hundred languages

Accuracy level: 99%

Word Limit: Up to 2500 words for free.

Pricing details: 2500 words- Free, 25,000 words – $10.99/ month, 62,500 words – $24.99/ month.

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13. Search engine reports.net plagiarism checker


Search engine reports.net Search engine reports.net plagiarism checker with the percentage is here to help you write 100% unique content. You can use this tool for free. You don’t have to sign up for or subscribe to any plan. You can paste your content or upload the document file to find a match. They support uploading a file from Dropbox. You can also type in the URL link of your content to find a result in a percentage. This detector shows plagiarized content with the percentage. It also shows the uniqueness of your content in percentage. You can check the 2000 words limit per search.

Search engine reports.net plagiarism checker can compare duplicate content with similar sources. You get sentence wise results. So it is easy to identify where the problem lies. You can check the matched result. This is a feature that not every plagiarism detector has. You can visit the source and correct your writing and make it best. A user can rewrite the article on this free tool. So it even works as a plagiarism remover. You can download the report after the check so that you can correct your work at a later time if you wish to do so. The accuracy level of this plagiarism checker software is high. You are free to use this tool for your content writing work.

Key feature:

  • You can upload a file from your computer
  • It has the ability to check plagiarism by URL link
  • The software shows plagiarized content with the percentage
  • The great tool shows unique content in percentage
  • It has the ability to compare duplicate content with similar ones on the web
  • The plagiarism tool shows sentence-wise results

Accuracy level: 95%

Word Limit: 2000 ( Two thousand words) 

Pricing details: Free

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14. The SEO TOOLS- plagiarism checker


The SEO TOOLS- plagiarism checker is another plagiarism checker with percentage. It is a free tool that has a limit of 2000 hundred words per search. You can copy and paste your content or upload the document file (.doc/.docx/.pdf/.txt) to find a match. They support uploading a file from Dropbox. You can type in the URL link of your content to find a result in a percentage. There is no need to sign up or register. To perform a search, you will need to prove that you are not a robot by completing an image verification (captcha). One thing that might bother you, there is a lot of images and pop up ads on the site. The result of the search is shown in percentage.

The SEO TOOLS- plagiarism checker shows the uniqueness of your content in percentage and how much of your content is plagiarized. You get a sentence wise results, and it is easy to identify where the problem lies. One can check the matched result, and the user can rewrite the article on this free tool. The SEO TOOLS- plagiarism checker shows the source of the matched content. The site is easy to use and pretty basic. You will have no problem going through it.

Key feature:

  • It can check plagiarism by URL link
  • Supports any type of document file
  • Shows plagiarized content with the percentage
  • Gives you similarity report
  • Shows unique content in percentage

Accuracy level: 93%

Word Limit: 2000 (Two thousand words) ) 

Pricing details: Free

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15. Plagiarismsoftware.org


Though Plagiarismsoftware.org allows the user to 1500 words limit er search, it is one of my favorite plagiarism detectors for its result displaying. By far, this tool shows the result in percentage in a category. You will get to know how much of your content is checked in percentage and what percentage of the article is unique and what percent is plagiarized. The site contains ads, but that is less in number. You can paste your content or upload your file. It supports .doc/.docx/.pdf/.txt files. You have the option to upload an URL to check for plagiarism too. Aside from a plagiarism check, you can also check for grammar errors on the same tool. The free online plagiarism checker with percentage is the best in this category. You can see the sources with which your content has a match. So you can change your content or cite the original author. The copied content is marked in red. It also shows the lines that have been plagiarized in percentage. The result is visible quite faster than some of the other sites. It is free of cost to use, and there is no requirement of sign up or registration. Use Plagiarismsoftware.org to detect plagiarism and remove it.

Key feature:

  • It can check plagiarism by URL link
  • Supports any type of document file
  • In detailed result in percentage
  • Accuracy level high
  • Robust site design

Accuracy level: 95%

Word Limit: 1500 (One thousand & five hundred words) 

Pricing details: Free

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Final Thoughts


Plagiarism is like a slow poison for a website. It slowly destroys the reputation of your site. To get rid of any plagiarism content, you can use any of the plagiarism mentioned above checkers with percentages. I have tested all of the tools. In my opinion, all of theme are unique and best in their job. Comment down below which one of the plagiarism checker you found helpful.