Top 10 Best Plagiarism Checkers in 2024 (Free & Paid)

Ever worried about plagiarism in your work? You’re not alone. In this blog, we’ll walk you through the top 10 plagiarism checkers of 2024, covering both free and paid options. Whether you’re a student, teacher, or professional writer, these tools can help you maintain originality and integrity in your writing. We’ll break down the features, pros, and cons of each checker, helping you find the perfect fit for your needs. Say goodbye to duplication concerns and hello to peace of mind.

Plagiarism detectors are software applications that are designed to scan and identify instances of potential copying or duplication in written work. These tools are used for linguistic, structure, and concept similarity checks by comparing the submissions with a large database of online sources, academic journals, and documents.

Plagiarism detection tools are used by educators, students, researchers, and professionals to ensure the originality and integrity of written work. They help individuals identify instances of accidental or intentional duplication and take the necessary steps to correct the issue.

Plagiarism detection tools are typically available as web-based applications or desktop software. For access to more advanced features, they may be free or require payment. Tools for the detection of duplication are valuable tools to maintain intellectual and professional integrity, as well as ensure that writing is authentic.

We're going to discuss the top ten plagiarism detection tools that are available on the Internet.

1. Merlin AI Plagiarism Checker

Merlins Plagiarism Checker.png

This tool uses the power of Artificial Intelligence to analyze text content and compare it with a large database of online sources, papers, or other literary material. This broad approach ensures that the tool is capable of identifying similarities and detecting potential instances of plagiarism with very good accuracy.


  • the originality of written content,
  • prevents unintentional plagiarism,
  • maintains academic and professional integrity
  • protects against the potential legal and reputational consequences.
  • All advanced features are free


  • It gives only 120 credits per day

Use Merlin's Duplication Detector


2. Grammarly

Grammarly Plagiarism Checker.png

Grammerly is a famous writing assistant tool known for its spelling checker features and style guide. Grammarly helps to improve the quality of the content in terms of engagement, clarity, correctness, and delivery. With the addition of other tools such as Google Docs, Microsoft Office, Web browsers, etc., Grammarly provides you with a grammar check and spell checker to ensure that your content is unique by correcting grammatical errors, vocabulary enhancements, or detecting plagiarism.


  • It provides a user-friendly platform.
  • It helps as a guide.
  • By the vocabulary used in the sentence, it provides suggestions.
  • Give personalized feedback.
  • Supports iOS and Android


  • To add more features, it requires a subscription.
  • Overreliance may result in the user being a victim.
  • Sometimes this software has performance issues.
  • Grammarly collects data.

3. Copyscape

Copyscape Plag Checker.png

Another tool on our list to detect plagiarism is Copy scape. In particular, this software is used for checking that there are duplicates on the Internet. To ensure that the contents are not copied from any other source on the Internet, this software is applied to the web. A unique feature called copy entry is available in Copyscape, which alerts the original content creator when their content is being used without permission.


  • Focuses especially on the content present on the web.
  • It has a user-friendly interface, allowing for quick and effective plagiarism checks with minimum effect.
  • Provides an instant result.
  • With the batch search feature, the user can check multiple URLs or content at the same time. 


  • The database is limited.
  • Offers limited services at no price.
  • Copyscape can miss offline sources.
  • Unlike other tools, there is no style guide or grammar checker.


Plagiarism Checker

  Plagiarism is another famous tool to check for duplication of content. It is intended to assist you in identifying your copied content and enabling you to avoid it. This tool compares the content posted and its box with the content available on the web. It supports many languages, which increases its capability of plagiarism checking. One can upload files as Google documents, PDFs, Word documents, etc. This tool is capable of checking for an instant plag content check.


  • It has a user-friendly platform.
  • This software supports multiple languages.
  • Offers a flexible option for input
  • The user can scan multiple documents.
  • Offers pre-basic services


  • Databases are limitedly available.
  • The user needs an upgrade to access advanced
  • Sometimes it generates false positives.
  • A style guide and a grammar checker are not included.

Use Merlin's Duplication Detector


5. DupliChecker


 Duplichecker is another famous duplication detection software, famous for its easy use. Several features are included in this tool to help you identify duplicate content. You can simply upload the file, which will give you a detailed analysis of your pasted content. The app has appealed to writers because of URL checking, bulk checks, and multilingualism.


  • Provides a user-friendly interface
  • To get detailed reports, you can upload files.
  • It supports a wide range of languages and therefore incurs a cost for its use area.
  • The bulk-checking feature is to allow users to see several documents at once.
  • Basic services are given for free.


  • Its effectiveness depends on the database, which has limited availability.
  • Advanced features need upgrading.
  • Does not give a perfectly accurate result.
  • No features like grammar checking or style suggestions

6. Quetext

Quetext Plag Checker

Several features in this tool help users to distinguish plagiarism from their content. Deep search technology is included in this software and reports are available with multi-coloured highlights. Users are helped to avoid accidental plagiarism by its citation assessment feature. To get the report, you can upload a file in different languages or click on that URL.


• It comes with a user-friendly platform.
• It enables users to upload files in various formats.
• It's in support of a lot of languages and stands for its efficiency
• A complete document inspection is possible thanks to deep search technology.
• The highlighted text makes it easier for the user to understand the results of the plagiarism check.


• The size of its database shall determine the effectiveness of this tool.
• Subscription required for the citations assistance and report in detail.

7. Plagscan

Plagscan by turnitin

A Plagscan is a plagiarism detection tool that helps to preserve the integrity of copied content by highlighting it and mentioning its URL. The tool provides a wide range of databases for comparing the texts sent. With the real scanning time feature, you can upload files of different formats, including Word documents, Google Docs, etc., and you can also search URLs for plagiarism. To enable more accurate searches, Plags may offer a configurable setting for citations or bibliographies.


• Advance algorithm
• Reliable result
• Easy to navigate
• Highlights matching text
• Supports multiple languages
• Ensures data privacy  


• Because of the higher scanning requirements, it is expensive for a user.
• It takes time to understand its interface.
• No free version

8. Small SEO Tools Plagiarism Checker

small seo tool Plag checker

  The small SEO tool is known as the best tool for checking plagiarism. No signup or registration is required for this tool, and you can use it on your own. A small search engine optimization tool compares the text entered against relevant data in the database.


• Available for free
• Simple interface
• Facilitates basic plagiarism detection
• Enables file upload option  


• Small database
• May not provide accurate results every time.
• Lacks in advance feature
• Users need to be careful about the data they have.

Use Merlin's Free Duplication Detection Tool


9. Unicheck

Unicheck By Turnitin

To prevent content duplication, Unicheck can be used to ensure the integrity of your studies. Students and teachers often use this tool to compare texts. For students and teachers, this tool can be used in conjunction with other tools such as the Canvas model or Blackboard to facilitate their use.


• Provides an accurate plagiarism check.
• Has a user-friendly interface
• Integration with the LMS enhances work efficiency.
• Concerns about user privacy


• It is more expensive than other plagiarism tools.
• It has a learning curve.
• The free version is limited to basic features.

10. PaperRater


Unicheck By Turnitin

Paper Rater is known as a two-in-one plagiarism and grammar tool that ensures a good style of writing and unique content. It is one of the best plagiarism tools on our list.


• Facilities for grammar and spell checks
• Plag detection
• Helps in enhancing vocabulary.
• Give feedback on writing style and give suggestions.
• Offers constructive feedback and grading tools.
• There are educational resources for users to help them with their writing. 


• The effectiveness of this tool is constrained by a limited database.
• The user might be concerned about accuracy.
• It needs an upgrade for advanced features.
• Privacy risk


  A plagiarism checker is an essential tool to ensure fairness in content with academic integrity and authority. In our list, we mentioned various tools according to different needs and preferences.

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Anupma Singh

Anupma Singh

Anupma Singh, an IITian turned serial entrepreneur, has developed a deep passion for SEO. Her writing expertise spans various topics, businesses that drive positive societal change, and the ever-evolving landscape of artificial intelligence (AI). She has specialized in driving massive organic growth for websites through engaging and informative content.

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