Top 5 Best Plagiarism Checker Tools of 2023

Top 5 Best Plagiarism Checker Tools of 2023
Best Plagiarism Checkers

Are you a writer, editor, or educator who is concerned about plagiarism in your content? When creating content, there's a likelihood that the language you use has been used before in a similar article or blog. This makes your content susceptible to being labeled as plagiarized. Plagiarism can have serious consequences, such as tarnishing your reputation, legal repercussions, and loss of credibility. To avoid this dilemma, it's crucial to check for plagiarism. Luckily, there are numerous plagiarism checker tools available to help you detect and prevent plagiarism.

A Plagiarism Checker Tool is a software or online tool that checks a piece of content for any signs of plagiarism. It compares the content to a database of previously published works and online sources to detect any similarities or instances of copied text. Plagiarism Checker Tools are beneficial for writers, editors, publishers, and educators who want to ensure that their work is original and free from plagiarism. These tools can identify even the slightest trace of plagiarized content, whether intentional or not.

In this article we discuss some of the best plagiarism checker tools, their features and pricing; so if you're a writer or publisher looking for such tools, read further to find the best fit for you.

Best Plagiarism Checker Tools



Rating 4.3 out of 5
Free Version Check Texts of Up To 1000 Words
Duplichecker | Best Plagiarism Checker Tool
Duplichecker | Best Plagiarism Checker

Duplichecker is a free online plagiarism checker tool that allows users to check their content for any signs of plagiarism. It compares the content with a vast database of online sources and previously published works to detect any similarities or instances of copied text.

Duplichecker is not just a plagiarism checker tool, rather an all in one content curation and grammar suite, which offers various services such as paraphrasing tool, grammar check, and reverse image search tool. The wide range of tools that Duplichecker has to offer, makes it a perfect choice for content writers and editors. Moreover, its usage is as simple as pasting the piece of text on the browser and applying the required check. Duplicheker is also considered one of the best tools for checking plagiarism.

Features of Duplichecker

  • Duplichecker offers a simple and user friendly interface where all you need to do is paste the text in the browser and apply the necessary check.
  • It offers a full suite of features including Grammar check, Plagiarism check, Paraphrasing tool, and Reverse Image search.
  • Moreover, Duplichecker also offers tools for Search Engine Optimization(SEO), such as text analysis, keyword research, and IP tool.
  • Duplichecker provides for Website Management, a range of features including SEO score analysis, pinging tool, rewriting tool, among various others.
  • Duplichecker works on all popular formats of text files including .txt, .tex, .doc, .docx, .pdf and others.
Duplichecker Tutorial: How to Use Duplichecker?

Pricing of Duplichecker

Duplichecker offers custom pricing which varies with the number of words that you apply the check against. Their plans vary from $5 per week which offers 33 searches for 10,000 words to $110 per year which offers 1,200 searches.

Plan Price Total Words
Weekly $5/week 10,000
Monthly $25/month 93,000
Yearly $110/year 3,60,000


Rating 4.4 out of 5
Free Version Check Texts of Up To 3,000 Words
PaperRater | Best Plagiarism Checker
PaperRater | Best Plagiarism Checker

PaperRater is a Free online grammar, spelling, and plagiarism checker and proofreading tool, for content writers and editors. With the help of advanced ML models PaperRater instantly looks for plagiarism, grammatical errors, and offers suggestions at the same time, making it the ultimate tool for proofreading content. Moreover, its AI engine Grendel offers you valuable feedback and tips to incorporate in your work, for better results.

Features Offered by PaperRater

  • PaperRater offers AI powered tools to help with grammar check, plagiarism detection, and automated scoring.
  • With the help of ML models, PaperRater utilizes the most advanced grammar and spell checker, which uses context to find inconsistencies in text.
  • PaperRater is an instant plagiarism checker that analyzes your text in a matter of seconds and gives you insights in a matter of seconds.
  • Moreover, it also proofreads your content to suggest better vocabulary usage, sentence analysis, and readability.
  • Along with grammar and spelling checks, PaperRater offers suggestions for sentence length, active/passive voice selection, and the right phrases to use.

Pricing of PaperRater

The basic plan is free of cost and offers the submission of 5 pages per submission and the Premium plan Costs $7.95 per month and offers up to 20 pages per submission.

Plan Price Maximum Submission Length
Basic $0 5 pages/submission
Premium $7.95 per month 20 pages/submission


Rating 4.5 out of 5
Free Version Check 1 document
Plagramme | Best Plagiarism Checker Tool
Plagramme | Best Plagiarism Checker

Plagramme is a free and popular plagiarism checking tool, which gives instant check results, with even the longest of documents. With Plagramme, you can test for the plagiarism detection without even signing up and then, depending upon the result, you can sign up to find more tools. Moreover, its plagiarism checker for academic purposes is scanned against about 80 million scholarly papers and articles, to give users the best results.

Features Offered by Plagramme

  • With the plagiarism analysis offered by Plagramme, don't just check for similar text, instead evaluate different scores like risks, paraphrase, citations, and matches.
  • Any plagiarism detected is highlighted in different colors with respect to their score, making it easy for writers to correct and prioritize things.
  • The plagiarism checker attaches links to the sources that match with the analyzed text, and makes it easy for the authors to double check.
  • Citations can often be misjudged and labelled as plagiarized, and hence Plagramme efficiently checks for citations for avoiding such situations.
  • Plagramme offers multilingual detection, and checks for plagiarism even if the text in written in multiple languages.

Pricing of Plagramme

Plagramme offers a free plan and three Premium plan that starts from € 29.99. Details of each plan is given below:

Plan Price
Free services € 0
3 documents € 29.99
6 documents € 49.99
9 documents € 29.99


Rating 4.7 out of 5
Free Version Check up to 300 documents or 150,000 words
Grammarly plagiarism checker
Grammarly plagiarism checker

We have all used Grammarly at some point, maybe to turn in an English essay, or a story of some sort, but we have. Grammarly offers a plagiarism checker and other text analysis and content optimization tools, for students and authors. It helps detect plagiarism from ProQuest databases and about 16 billion web pages, which speaks volumes in itself. Moreover, Grammarly covers sentence structure, punctuation, and vocabulary, to help you bring out the best of your work.

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Features Offered by Grammarly

  • Grammarly offers a tone detector, that helps you meet the way you wish to express yourself.
  • Grammarly checks content for plagiarism against billions of web pages, and even for the most subtle one's.
  • You get to analyze your text for grammar, punctuation, vocabulary, and more to make your article best in class.
  • Along with fixing spelling errors, Grammarly also suggests edits in your text, which could bring more sense and meaning to your work.
  • Make your text more readable with Grammarly, and transform whole sentences to give them a proper structure and meaning.
Grammarly Plagiarism Checker: How to Check & Remove Plagiarism with Grammarly

Pricing of Grammarly

Grammarly offers a custom pricing plan. You can choose a plan as per your team size.

Try Grammarly For Free


Rating 3.8 out of 5
Free Version Check up to 200 words
Unicheck - Plagiarism Checker Tool
Unicheck - Plagiarism Checker Tool

Unicheck is another instant Plagiarism Checker Tool, which uses technical knowledge and intuitive structure to detect plagiarism in text. Unicheck is recognized and used by 1,100 academic institutions globally. It supports most file formats for plagiarism detection and accepts bulk uploads, while giving out detailed reports to revise potential plagiarism.

Features Offered by Unicheck

  • The data that you upload on Unicheck is securely stored over regional servers, and governed with data safety policies such as FERPA and GDPR.
  • Unicheck offers various custom and flexible plans for educational institutes for ensuring plagiarism checks among students' academic papers and articles.
  • Seamlessly integrate the plagiarism scanner and get an all time availability of the application with Amazon Cloud hosting.
  • Unicheck scans your pages and simultaneously develops a report in a bare minimum of 25 seconds.
  • Unicheck also offers a simple API, Google Docs add-on, as well as custom integrations for efficient checks.

Pricing for Unicheck

Unicheck offers custom pricing in three different plans namely, 'Personal', 'K-12 and Higher Education', and 'Business'. Both the Personal and Business plans range from $5 per month to $600 or more. The K-12 and Higher Education plan offers three different choices depending upon your needs, including Essentials plan, Support Plus, and an Enterprise plan.


Plagiarism Checker Tools are essential for anyone who wants to produce original and high-quality content. We have discussed some of the best Plagiarism Checker Tools available in the market, each with its unique features and benefits. These tools can help you detect any plagiarism in your content, prevent legal and ethical issues, and maintain the integrity of your work. By utilizing one of these Plagiarism Checker Tools, you can ensure that your work is free from plagiarism, thus protecting your reputation and credibility. So, use these tools and produce authentic content that stands out from the crowd.


What is plagiarism?

Plagiarism is the act of using someone else's work or ideas and passing them off as your own without proper attribution. It can include copying and pasting text, paraphrasing without citation, and using someone else's ideas without permission.

What does a plagiarism checker do?

A plagiarism checker is a tool that analysis and detects content that is plagiarized.

Why Should I Use a Plagiarism Checker?

Using a plagiarism checker ensures that your work is original and free from any copied content, preventing legal and ethical issues and maintaining the integrity of your work.

How to Choose the Best Plagiarism Checker?

When choosing the best plagiarism checker, consider factors such as accuracy, features, ease of use, pricing, and user reviews. It's recommended to try out multiple tools and compare their results to find the one that best fits your needs.

What percentage of plagiarism is acceptable?

Many journals accept text similarity that is below 15%.

What are some of the best plagiarism tools?

Duplichecker, Unicheck and PapeRater are some of the best plagiarism tools.

Are plagiarism checker tools accurate?

Yes, most plagiarism checker tools are accurate in detecting plagiarism. However, it's essential to keep in mind that these tools cannot determine intent, and false positives or false negatives can occur. It's recommended to use multiple tools and manually check for any plagiarism if needed.

Can Plagiarism Checker Tools detect plagiarism in images or videos?

No, most Plagiarism Checker Tools can only detect plagiarism in text-based content. However, some tools offer reverse image search, which can help to identify if an image has been used without permission.

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