20+ Free Plagiarism Checker Tools for students, Teachers, and Bloggers in 2026 (Updated list)
Are you searching for the best free plagiarism checker and proofreader for your writing? If yes, this article will give information on plagiarism, online proofreading, and grammar checker tools to help you write your essays professionally.
Plagiarism is a significant problem on the internet. Due to blog creation and web development’s fast growth, most people are searching for natural methods to get an article.
Apart from that, they are copying other articles and posting them on their websites or blogs without permission for more traffic and growth.
Here, Google is brilliant. The Google search engine spiders and crawlers work very fast.
They detect copied (plagiarized) content very fast. So you have to take care of your content so it does not get copied by others. Are you searching for free plagiarism checker tools? Let us know what the best plagiarism checker is.
What is plagiarism?
Plagiarism is an act of fraud. It includes taking or stealing others’ work, a person’s writing, conversation, song, or even an idea and passing it off as your own. It is just a part of cheating or similar imitation of previously published articles of another author’s content online without their permission.
How to check for plagiarism?
I recommend that every new and established blogger create a copyright page and keep the link in the footer or another visible location.
Create a new account on the DMCA (Digital Millennium Copyright Act) website. Place the code on your blog. It starts working by scanning your pages and checking online for copy scrapers.
As a blogger, I am writing content regularly for my blogs by spending more time and publishing 3 to 5 articles every week.
I know the pain of content theft. At the beginning, RSS scrapers were stealing my content. I improved my WordPress security levels.
What is a plagiarism checker?
A plagiarism checker is a tool that helps us check for plagiarized content. By using plagiarism checkers, you can check any document or some words of content to know whether it has been plagiarized by any chance.
Once you paste your content into the plagiarism checker tool and hit enter, the tool will start searching all over the internet for the content, checking whether the same content is used elsewhere. While most of the tools check for similar content, some sensitive tools give out similar wording too.
Once they search the whole article, they will show all the plagiarized lines along with the sources.
It is also important to check for plagiarism before publishing your newly written content. The chances are that any article over 100 words may be plagiarized. Hence, it is always good to hit the check plagiarism button before publishing. If you get non-unique sentences, you can quote them or rewrite them in your own words.
What does a checker do?
Generally, a plagiarism checker searches all over the web for content that is similar to the content you put in the checker box. If it finds any content on the web with similar wordings to your content, the checker concludes that the content is the same in both cases and displays it to you along with a link to the article.
It searches individual sentences and phrases and checks for similarities. After checking all the sentences in the content, it will give the overall score of the plagiarized content.
Benefits of using a plagiarism checker
While not having plagiarized content is crucial, there are some benefits of using plagiarism checkers other than manually checking the web.
- You will get links to pages to which your content looks similar.
- You will get the overall percentage of the plagiarized content.
- Within no time, all the sentences will be plagiarism checked
- It helps you improve your paraphrasing, or otherwise called content rewriting, skills, which help you complete your articles without any plagiarism.
Here I am introducing a few free plagiarism checking tools to check your content, whether stolen or not.
Best Free Plagiarism Checker Tools
Here is the best free plagiarism checker software for students and scholars.
1. Grammarly Plagiarism Checker
Grammarly is one of the best free online plagiarism checkers for students, content writers, bloggers, and teachers. It has excellent features like punctuation correction, proofreading, and grammar checking. The service is perfect as a grammar checker, i.e., it checks the grammar and spelling of the total content.
It is the best plagiarism checker for students and teachers, making their writings and research papers plagiarism-free. When you click on any word on the Web page, it shows definitions and synonyms via double-clicks.
Grammarly’s proofreading and grammar checking features are free to use. But the plagiarism option is a paid option. Investing money in this plagiarism tool is an excellent option. It is worth it.
If you are not ready, you can use free options like proofreading and grammar checking tools. No doubt, Grammarly is the best site for checking for plagiarism. It is an excellent free online plagiarism checker for students and freelance writers.
How to enable plagiarism checking in Grammarly? Simple. This feature is available in the premium version only. Choose the pack and get the service immediately. It is the best plagiarism checker and proofreader. You can check the Grammarly Review to know more features.
Pros and Cons of Grammarly:
Pros
- Comes free with the Grammarly premium, so you don’t need to pay extra for plagiarism tools.
- There is a massive database of 16billion+
- The word limit is 150K which is higher than any other tool.
Cons
- You can only use this tool for English.
- You can not get this tool alone without a Grammarly tool.
- The pricing is a bit high.
Pricing of Grammarly:
The pricing of Grammarly starts at $11.66/month for annual users and $29.95/month for monthly users.
2. Small SEO Tools Plagiarism checker
It is an online free plagiarism checker tool from SmallSEOTools. There is no need to download any software to check the plagiarism. Just copy the original content and paste it into the box, then click on Check for Plagiarism. This anti-plagiarism software detects duplicated content and gives a comprehensive plagiarism report.
Pros and Cons of PlagiarismChecker.com
Pros
- Easy-to-use tool
- No need to download any software
- The tool is entirely free for anyone.
- You can also check the plagiarism by uploading the document in any format.
- You can also check plagiarism through a web page URL
Cons
- The limit of the content is 1000 words only
- It is not much reliable for students
- Can not compete with the other premium plagiarism services
Pricing: the tool is entirely free for anyone
3. CopyScape
CopyScape is an anti-plagiarism checking tool. You must add your URL to check for plagiarism. It is an excellent duplicate content detection software and duplicate content checker. It is a must-have tool for freelancers and content managers. It has a paid version with other alert functions. It does not check any documents or files and allows only web articles. Copyscape is a free plagiarism scanner.
Pros and Cons of CopyScape
Pros
- The tool is straightforward to use
- It comes with useful features and good customer support.
Cons
- Sometimes the results are not accurate.
- The pricing of premium plans is a bit high.
- The free program does not have such features as premium
Pricing of CopyScape
It is completely free to use. For the Premium version, the pricing of the tool starts from $4.95 for ten pages, and for each additional page you need to pay $0.25
4. Viper Plagiarism Checker
Viper Plagiarism Checker is a free plagiarism checker from Viper Plagiarism Scanner. Viper is a free plagiarism checker, and it is the best alternative to Turnitin’s plagiarism services (this is a premium plagiarism checker service).
Viper is Windows-based software. It is, therefore, necessary to download it before you can use it. Viper looks through the web for the source of a document to find copies or plagiarism.
Pros and Cons of Viper Plagiarism Checker
Pros
- Best plagiarism tool for students and institutions
- Prices are best for limited searches
- You can request cashback for unused credits.
Cons
- Prices are huge for more documents.
- Not suitable for bloggers and webmasters.
Pricing of Viper Plagiarism Checker
There is no direct pricing or monthly plans. You can purchase credits, which cost from $3.95 to $65.50.
5. UniCheck.com
Unicheck has released its free version, which can now be tried out by any user with a stable internet connection. It is the best online plagiarism checker with a percentage.
The free plagiarism checkers allow scanning 500-word texts at no cost and receiving interactive reports after checking is completed. The tool is simple to use and doesn’t require registration unless you check much longer books than the Unicheck free version allows.
The free tool performs scans against the internet and highlights plagiarized passages. It is the best plagiarism checker online for free.
Pros and Cons of UniCheck
Pros
- It is a cloud-based tool
- Easy to use and feature-rich
- It supports all formats to upload and check the docs
- You can download reports
Cons
- Even though Unicheck promotes itself as a free service, you need to pay for every paper checked, and it does not show you pricing until the last second.
Pricing of UniCheck
The pricing of the unicheck starts from $5, and this varies with the number of papers you have selected
6. PaperRater
The Paper Rater is a free online plagiarism checker tool that is best suited for students and institutions. You can submit your papers for plagiarism checking and get them checked. It is a free resource that utilizes artificial intelligence to improve writing.
It is fast and easy to use the tool, and you can also use this tool for checking grammar and spelling.
Pros and Cons of PaperRater
Pros
- Best for students
- Simple and easy to use
- There is a free and also premium plan for those who need more content to check
Cons
- It is not entirely free, and the open-plan does not have useful features
- Limitations on the number of checks per month
Pricing of Paper Rater:
It is available in both free and premium versions. In the free version, there is a limit on the maximum submission length. The premium version starts at $7.95 for a 20-page submission.
7. Turnitin
Institutions and universities mostly use Turnitin. Students of institutions are also recommended to use this tool for institutional purposes. This tool is sold to institutions and businesses rather than students. So, if you wish your paper to be checked, you can request your institution to get the article checked. Turnitin is another great free online plagiarism checker for students and teachers.
Pros and Cons of Turnitin
Pros
- Best and fast source for plagiarism checking
- Best for teachers who need to check many pages of documents
- Very essential for teachers and institutions.
Cons
- Not sold for individuals or students
- Need institution credentials for using
Pricing of Turnitin
As Turnitin is only sold for institutions and organizations, individual users can not get or purchase Turnitin.
8. DupliChecker
Another great website to check plagiarism is DupliChecker. If you are searching for a free tool that gives you the best results for plagiarism, then the Duplichecker is the perfect choice for you. This tool is free. And you can use it online without the need to download any software.
You can check for plagiarism in DupliChecker by copy-pasting the original content in the checker box and hitting the check plagiarism button.
Pros and Cons of Duplichecker
Pros
- The tool is entirely free
- Easy to use
- You can copy-paste to check the plagiarism
- You can also check plagiarism through URL
Cons
- You can only use it online
- Only 50 scans a day
Pricing: The tool is entirely free for anyone
9. PrepostSEO Plagiarism Checker
PrepostSEO is an all-in-one SEO tool that also comprises a plagiarism checker. This is one of the great tools and is also available for free. You can check the original content directly from the web page, and in the free plan you can search up to 1000 words. There is a monthly limit of 500 searches per month, which is way more useful than any other tool.
Pros and Cons of PrepostSEO tool
Pros
- There is also a WordPress plugin available
- The comfortable and reliable tool even for free and paid plans
- The free plan includes 500 free searches per month
Cons
- On the paid plan, a search can only contain 5000 words.
- You can not download the reports.
Pricing: The pricing of the plan starts from $10/month
10. WhiteSmoke Plagiarism Checker
WhiteSmoke is a grammar checking tool that also comes with a plagiarism checking tool. This is one of the plagiarism-checking tools used by many customers around the world.
It uses natural language processing (NLP) technology to improve your writing style.
There are billions of web pages saved in the cache of the servers, which are used in analyzing the web pages and also checking the grammar issues in the pages.
The WhiteSmoke tool comes in the next spot after the Grammarly tool. This is the best site to check the plagiarism of your documents with the best price on duplicate checks.
Pros and Cons of Whitesmoke plagiarism checker
Pros
- Supported in multiple platforms like Outlook and Word.
- Can also be used for grammar and punctuation
- It is compatible with all the devices
Cons
- The pricing is more
- You will only get 500 credits for any plan; you need to buy additional credits
Pricing: It is a premium tool. There are no trial versions. To use the tool you need to buy credits
List of few best other sites
The list of plagiarism-checking tools is unlimited. So there is no end to this list. We listed the few sites that are used personally. There are a lot of free plagiarism checkers that can be used to see if the text is original. So let me provide some of the websites to find plagiarism for better reference.
| Name of the Tool | Features |
| 1. Plagiarism Detector | Free and Pro versions are available 1000-word limitation in free useful for students, academics, personal, professional, and legal documentation |
| 2. QueText | Clean interface contextual analysis and word placement Suitable for Bloggers, webmasters, and professionals Registration required |
| 3. SEReport’s Plagiarism checker | The interface is similar to the PrepostSEO tool. Easy to use. No need to register your details |
| 4. PlagTracker | Most accurate premium plagiarism service Free and Premium services are available |
| 5. PlagScan | It helps you to check the authenticity of your text. Best online plagiarism checker with percentage |
| 6. CopyLeaks | AI-based anti-plagiarism checker Google Docs, MS Word, and Moodle integration feature LMS platform support It is the best plagiarism checker for research papers |
| 7. Plagiarisma | Best plagiarism checker software with a simple interface Desktop version available for windows 7 and 8 users There is an android version for plagiarism check from your smartphone |
| 8. Plagium | Simple-to-use interface Google Doc extension is available |
| 9. PlagAware | It is a professional plagiarism suite for students and writers A trial version is available |
| 10. Scribbr Plagiarism checker | It is a completely premium tool No free version |
Each tool has its own unique features in its actions. On this page, I listed the ten best sites to check for plagiarism in detail for students, teachers, and content writers. So pick the most suitable means to create safe and unique documents and contents.
Best free online plagiarism checker for students and teachers
For teachers and students, you may go with free plagiarism-checking tools like PlagScan, CopyScan, and Duplichecker. These plagiarism checking sites are perfect for educational institutes. If you require additional checking for the overall analysis of your student’s academic papers, write-ups, and essays, Grammarly Premium can help.
The premium versions of Grammarly and WhiteSmoke have more additional features to change the words and phrases with their suggested synonyms to come up with something unique and readable. It is the best free plagiarism checker for students. These are the best tools to check whether academic papers are free from plagiarism or not.
Frequently Asked Questions (FAQs)
What is the best free plagiarism checker?
There are thousands of plagiarism checker tools available in the market. Most of the tools will force you to buy the premium versions after a few free checks. For the students, teachers, and content writers, you may use the free versions to come up with content uniqueness. Here I strongly suggest Grammarly and ProWritingAid’s plagiarism checker tools.
How do plagiarism checker tools work?
Plagiarism checker tools are used to detect instances of plagiarism in written work. They are computer programs that compare a text against a database of other texts to look for similarities. The tool will not only highlight the passages that it thinks are plagiarized but also provide the original source and percentage of similarity.
Is it safe to use a plagiarism checker?
According to the terms of the data protection system, most free plagiarism checker tools do not provide accurate information about their locations and content.
What is the difference between a plagiarism checker and a grammar/spelling checker?
A plagiarism checker is used to find duplicates of a sentence or paragraph, while a grammar/spelling checker is used to find any grammatical errors in the text.
What are the benefits of using a plagiarism checker tool?
With the help of plagiarism checker tools, one can be sure that the content they are about to publish is original. And this is not just for writers—it is for everyone who publishes content on the internet. There are many benefits of using plagiarism checker tools. It saves time and improves quality; it helps with SEO, and it reduces the risk of getting penalized by Google’s algorithm—Panda or Penguin. The best thing about these tools is that they are free and easy to use. All you have to do is upload your article or text, wait for a few seconds, and then see if there’s any plagiarism in your content or not.
How do you find out if your content has been plagiarized?
There are a number of ways to check the plagiarism level of your content. You can use free online tools such as Grammarly, Plagiarism Checker, or Copyscape. It is also important to know that there are many reasons for plagiarism. It could be done intentionally by people who want to get credit for someone else’s work. It could also be due to a lack of knowledge on the topic or simply not knowing how to paraphrase something.
Final Words on Free Plagiarism Checking tools 2026
I would recommend these free online plagiarism checker tools to check copied content and act on content stealers. First, I suggest that every blogger create a copyright disclaimer page and open a new DMCA account to file complaints.
The above-listed plagiarism checker websites have their pros and cons. So you should take it into consideration before you decide as per your professional needs.
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I suggest the Grammarly Premium tool to get the best results for bloggers, content writers, and teachers. Naturally, it is the best plagiarism checker and proofreader tool.
It has more features like proofreading and grammatical error rectification. So this is my favorite. Check for plagiarism online for free with the above tools.
This article helps you make your original content, documents, and research papers clean and unique by using the above Best Free Plagiarism Checker tools.
But do not use all the tools at once. Choose one tool and scan your documents or original content to check whether it’s plagiarized or not. Share this document with your friends on social media.
Hello Satish Sir,
This Article is too helpful and especially For Newbie Bloggers Who Are Looking For best free Plagiarism checkers to make their content unique. Thanks for this article.
Hello Pravakar,
Thank you for landing here. These tools are very important to make our content should be unique and readable. Very nice to hear from you. Hope this content will help in your future blogging.
Hello Satish,
Great tips here 🙂
Indeed plagiarism is sometimes a real threat, of getting our things copied or someone get our ideas stolen and put it on the
INTERNET.
Its good how Google acts smartly and catches those, who are willing to perform this act of thief.
Some pretty helpful tools to check over the plagiarism, I have used Grammerly and Copyscape and these two have helped me a
lot in my journey this far.
I am looking forward to try some of these tools which I haven’t gone through with.
Thanks for the share.
Shantanu.
Thanks for sharing this list of tools. Recently I faced a situation where a guest article is published in my blog which is a copy of other blog. I did not doubt about the author as he showed some expert proof. But latest on felt very bad, that I was not cross checked the content. This is a great learning and I have a leart a lot from this experience.
Hello Satish,
These tools are very good. I used ‘Grammarly’ for a long time, but unfortunately, I can admit that it’s good for checking grammar but not for plagiarism. I’ve tried a lot of good plagiarism checkers and some of them are really very nice and not so expensive.
Thaks for sharing useful tools)
Hi Satish ,
Good to see a list of plagirism checking tools. I have been using Grammarly for long time and hence actually never tried to look for another one.
Once again thanks for sharing valuable informations.
Have a great time blogging.
Reji Stephenson
Hi,
Thanks for sharing your content about Plagiarism checker tools. Currently, I’m using SmallSEO Tool for checking my guest content. I think, this tool is the best for me. Thanks, Satish Bro.
Hello Palash,
Thank you for visiting again. SmallSeoTools are very good for bloggers. Try the Grammarly plagiarism checker (premium) for better results.
Hi Satish,
Yesterday I was using SmallSEO tools and it was not working that perfectly, so I was looking for some best alternates. So, thanks to you for coming up with this amazing post and sharing some more tools.
Hello robin,
Thanks for landing here. I checked every tool before writing this article. May be some technical problems, the small SEO tool doesn’t working properly. Check with another tool. Grammarly premium plagiarism tool is working good.
Useful information from you Mr. Satish Kumar !! Now a days Grammarly playing a lead role in grammar checker and as well as Plagiarism checker tool from Grammarly. But grammarly will good for premium too. There is no more use for free account users.
Thanks for sharing !! Keep sharing
Hello Karthik,
Plagiarism is a popular issue on the internet. Grammarly is a very good premium tool for everyone not only for bloggers and content writes. This is also helpful for students and teachers. No doubt this is the Worth tool for bloggers and content writers.