Top 9 Free Plagiarism Checker Tools In 2023

In today’s world, content has become the king of the internet. Hence, plagiarism results in nothing less than you facing the consequences of performing a theft. Therefore, you should get your content checked by a plagiarism-checking platform that is best for the content you create.

Best Free Plagiarism Checker - Thomson Shore

But is the abundance of online plagiarism-checking platforms overwhelming and leaving you needing clarification about which might be the right choice? If so, then worry not!

We have had various experiences with plagiarism checkers for years now. All these years, we have tried out hands-on multiple plagiarism checkers, and we understand how difficult it is to find the best and most free tool in the market.

Therefore, we have hand-picked some of our best free plagiarism checkers in this article based on our years of experience.

By the end of this post, you can decide which plagiarism checker is the best! So, let’s get into the details below.

Why Use a Plagiarism Checker?

Using a plagiarism checker is one of the best ways to ensure your work is free from plagiarized content. Plagiarism detection software helps you to detect plagiarized text and duplicate content in your documents before they are published online or submitted.

This can save you time and money in the long run by avoiding any potential issues with copyright infringement. Many of these tools also provide grammar-checking capabilities, which can help ensure that all your written works are accurate and up to standard.

Free versions of these tools are available, allowing you to check a limited number of words simultaneously for plagiarism.

However, paid versions of plagiarism software are also available if you require more comprehensive coverage. With so many options available, finding one of the best free or paid tools to suit your needs is easy.

How To Choose The Best Plagiarism Checker For Your Needs?

Plagiarism checkers are of various types; they vary due to their various features, be it their content handling capabilities or specific preference towards a certain type of content. For example, every plagiarism checker is known for providing features that show an inclination towards a certain work industry.

Therefore, to find the plagiarism checker, you must first sort out some of your needs and wants from the platform. Some of these needs and wants are as below:

  • How much work do you handle every day?
  • Which platform do you know or have heard about from your colleagues?
  • How many language features do you want?
  • Do you want it to provide an integrated experience with other applications?

Most people ignore these little details while choosing a plagiarism checker, but if you get these answers right and start your search based on them, there’s a high chance you can find the best one.

Other than that, there are some basic features that all plagiarism checkers share. While looking into a plagiarism-checking service provider, do look out for these features:

  • Accurate plagiarism checks
  • User-friendly interface
  • Ability to handle a basic workload
  • One free trial or one trials-based plan
  • External citation provision

If the plagiarism checker you’re looking into has all these, it passes the basic test. Later on, all the names on the list will have all these stated features.

List Of 9+ Best Plagiarism Checker Tools Available Online

Now that you know how to pick the right plagiarism checker, let us help you with some of our top picks to make your search easier!

Sr. No.


Key Feature




Accurate plagiarism detection, grammar suggestions, readability scores

Limit of 150 plagiarism checks/month



Contextual grammar and style editing, plagiarism checker 

Limited to 500 words at a time



Percentage-based plagiarism scores, grammar corrections 

No bulk plagiarism checks



Searches web pages for duplication 

Can’t check documents, limit of 500 words



Similarity score and highlighted matches 

For academic use only



Advanced plagiarism detection and reporting

Primarily for educators



Integrates with LMS checks against student paper database 

Limited free scans per month


Plagiarism Checker X

Google-based plagiarism detection

No grammar or writing checks



Compared to 10 billion web sources 

Limited free scans per month

1. Grammarly:

Grammarly Overview

Grammarly is one of the most used platforms by content creators for editing, but it also provides the feature of plagiarism checking. Its algorithm scans your content through numerous websites and gets an accurate plagiarism result so you can know your content is 1005 unique!

Check out the detailed Grammarly Review of 2023.


  • Searching the required content in batches
  • Alerts you of the text that seems to be copied from another web page
  • Checks your content against eight billion web pages to ensure your content is original
  • It lets you know the percentage of your content that is plagiarized
  • Provides a calculation for your content’s originality
  • Keeps your content secure and safe
  • Provides external links to the web pages from where your content matches

2. ProWritingAid:


ProWritingAid is a platform more inclined towards serving academic and web writers. Putting your content in it checks against a non-countable number of academic papers, web pages, and published workpieces to ensure your content is unique. To use ProWritingAid, you can run the plagiarism report online or use its add-on extension on your computer.


  • You can do self-edits
  • It has an easy-to-use interface
  • You get to have more than 20 in-depth writing reports
  • It can be integrated with various platforms like Word, Chrome, Google Docs, Gmail, etc.
  • Provides support to a large set of files
  • It helps find any work related to data, wording, question, ideas, etc.
  • Ability to maintain a governorship over your word usage

3. Quetext:

Quetext Overview

Quetext has become one of the best plagiarism checkers in recent years due to its excellent use of word placement and algorithm that masters in identifying copied content. This platform matches your content with various web pages, online textbooks, news sources, citation generators, and other sources to provide an accurate report.


  • Its plagiarism score is comprehensive
  • Provides a good environment for the new users
  • A single click is enough to initiate a plagiarism check
  • Identifies and correspondingly colors the copied content
  • Keeps your data private and secure

4. CopyScape:

Copyscape Overview

Copyscape is a complete cloud-based service-providing company. With the tool, you can run a plagiarism report on your content. All you need to do is type the URL of the content and then click on Go. It is a great option regarding the list of plagiarism checkers that allow you to perform unlimited scans for web pages. However, you must add credits (money) to your account. But wait! Copyscape is extremely affordable, even if you are a student!


  • Allows searching the content in batch
  • Provides case management and track facility
  • It offers a user-friendly environment
  • Allows you to compare two content pieces side-by-side
  • It supports offline content indexing as well

5. Scribbr:

Scribbr Overview

Scribbr is another plagiarism-checking tool known for doing a stellar job. It is in partnership with Turnitin, which helps it detect phrase matches and precise words. When you put your content on Scribbr for plagiarism check, it matches it with 91 billion and 69 million publications.


  • It consists of a huge content database
  • Provides citation-checking ability
  • Can handle external sources
  • Manages small projects with ease
  • Provides APA citation generator and checker

6. Unicheck:

Unicheck Overview

Unicheck is one of the plagiarism checkers that help you ensure your content becomes completely authentic. It supports bulk loads and numerous file formats and provides a detailed plagiarism report of your content. In addition, Unicheck provides a report after comparing your content with several web pages, educational databases, and institutional library files.


  • Notifies about suspicious content
  • Calculates the plagiarism score in the current time
  • It provides modification abilities in its search settings
  • Offers a processing system for bulk data
  • Provides add-on to Google Docs
  • It can be used as an extension of Google Chrome

7. Plagscan:

PlagScan Overview

Plagscan is a great option among other plagiarism checkers. It provides you with the percentage of your content’s text that matches another web page. The platform also provides an easily analyzable report in Word or PDF format. With Plagscan, you can also collaborate with your friends and even allow the source you seem to take an interest in.


  • The document highlights all the matches, including internal and web resources.
  • You can work offline with it
  • Its plagiarism reports are shareable
  • It provides the ability to compare documents with matched sources
  • Uploading a document from your cloud drive, computer, etc., is possible
  • You can share or delete your documents with it

8. Plagiarism Checker X:

Plagiarism Checker X Overview

Plagiarism Checker X is one of the best tools to help you check plagiarism for research papers. It is designed to help students, teachers, and professionals quickly detect plagiarism in their work. With the help of Plagiarism Checker X, you can easily identify any copied text from the internet or any other source. This powerful tool uses advanced technology to scan billions of online resources and compare your content with them. The tool even allows you to set a custom level of similarity to match your content. 


  • Offers an intuitive interface with easy navigation
  • Highlights copied text to make it easier to identify and fix
  • Supports various file formats like PDF, HTML, DOC, and more
  • Checks for accidental duplicate content
  • Supports multiple languages

9. Copyleaks:

Copyleaks Overview

Copyleaks is a capable plagiarism detection service used to check documents, websites, and other content for duplicated or unoriginal text. It utilizes advanced technology to scan submissions against its database of over 10 billion indexed web pages and sources. The plagiarism check will rapidly scan the content and highlight any sections that match existing sources. A detailed plagiarism report is provided, showing the percentage of unique vs plagiarized text.


  • The free version allows up to 500 words per plagiarism check
  • Compares text against 10+ billion web pages
  • Supports various file types, including Word, PDF, and HTML
  • Advanced settings to customize plagiarism detection sensitivity
  • Works for academic papers, articles, websites, blogs, and more

Who Benefits From Grammarly’s Plagiarism Checker?

Grammarly’s Plagiarism Checker is a great tool for students, teachers, and anyone who needs to check for plagiarism. The software is free, so anyone with an internet connection can access it.

With the help of the free online plagiarism checker, users can detect any plagiarism in their content quickly and easily. It also helps ensure that the website and other online content are original.

Furthermore, it helps to identify similar content which could have been copied from other sources. For example, Grammarly’s Plagiarism Checker makes it easy for users to check for plagiarism and detect any plagiarized content in their work before they submit it.

It is free and provides a reliable way to check for plagiarism without spending money.

Related Read:

Final Verdict: Best Free Plagiarism Checker Tools

Plagiarism checkers are essential software pieces. They help you ensure your content is not imitating or copying others’ content. For example, you can easily find the right plagiarism checker by properly sorting out your needs and wants.

Choosing one of the seven plagiarism checkers above will ensure you get 100% original content. However, if you are overwhelmed with the options and need quick suggestions, we recommend trying Grammarly or ProWritingAid, as these tools can be your one-stop solution for all your writing needs!

Our list of the best free plagiarism checkers helped you pick the right tool according to your needs. Which tool are you choosing from the list above? Let us know in the comments section below!

Frequently Asked Questions 

What is the word limit to check plagiarism?

When checking for plagiarism, there is no specific word limit. This means you can check any amount of text, regardless of length. However, some plagiarism detection services may restrict the maximum number of words that can be checked simultaneously.

This is usually because longer documents take longer to scan and analyze. Additionally, some services might charge extra for scanning larger amounts of text.

Are free plagiarism checkers accurate?

The top free plagiarism detectors like Grammarly and Copyleaks use advanced algorithms and enormous databases to identify duplicated or unoriginal text accurately. They are reliable for catching plagiarism from web content.

What types of documents can I check for plagiarism?

Most free plagiarism checkers support scanning various file types, including Word documents, PDFs, HTML pages, and plain text. Many also allow direct copying and pasting of text passages.


Leave a Reply