Proven To Work: The Best ChatGPT AI Plagiarism Checkers Explained

If you are a student or a writer who frequently uses chatgpt, you know how important it is to ensure that your work is plagiarism free.

With the rise of AI writing tools, it’s critical to understand which plagiarism checkers are trustworthy and effective.

In this article, I will analyze the top five AI plagiarism checkers to help you choose the best one for your needs.

Plagiarism vs AI-generated text

But before we move on, let’s discuss the difference between plagiarism and AI-generated text.

When you use another person’s writing without giving credit, you are committing plagiarism. It also refers to claiming someone else’s work as your own.

Ai-generated text, on the other hand, is content created by artificial intelligent tools like chatgpt.

This means that just because you used ai to create your text doesn’t imply that it is plagiarized.

However, I should point out that while many schools claim that using chatgpt is plagiarism, what they are actually referring to is simply cheating.

Because of this confusion, the two concepts are often mistaken as the same.

Using chatgpt is not plagiarism. However, this tool occasionally copies text from other sources.

This is why it’s critical to use an AI plagiarism checker to ensure your work is unique and not plagiarized from elsewhere.

The top five ai plagiarism detectors

Plagiarism checkers have been around for a long time before the advent of AI tools. So, there are many different types available on the market.

After much research, I discovered that there are only about five tools that have been proven to work time and time again. And they are:


copyscape plagiarism checker

Copyscape is a popular plagiarism checker used by many writers and editors.

It’s simple to use and provides an extensive database of online content to compare against. The tool is quick and efficient, generating reports in seconds.

Copyscape is not free. Each check you do will cost about $0.10 per 1000 words.
Also, Copyscape only checks website content, so it may not detect plagiarism in other sources.


  • Simple and easy to use
  • Large database of content
  • Quick and efficient
  • Cost very little.


  • Limited database.
  • Buggy UI/UX.

originality ai plagiarism checker

This is one of the newest kids on the block. is an excellent AI plagiarism checker that uses advanced algorithms to detect plagiarism.

It checks for similarity in phrases, sentences, and paragraphs, making it a reliable tool for plagiarism detection.


  • Detects and highlights sources of copied content.
  • Has ai content detector.
  • Very easy to use.
  • Give free one-time credits on sign-up


  • Can be a bit slow in generating reports
  • No information about their database.

Grammarly Plagiarism Detector

Grammarly plagiarism checker

Grammarly is a popular writing tool known for its advanced grammar and spell-checking features.

The tool also has a plagiarism detector feature that checks your work against billions of web pages and academic papers.

Currently, Grammarly is free; but the plagiarism checker is only available for pro subscribers.


  • Checks against billions of web pages and academic papers.
  • It does not cost credits.


  • The premium version is expensive.
  • Too sensitive. It detects phrases from unrelated sources.

Copyleaks Plagiarism Detector

copyleaks plagiarism checker

Copyleaks is another new ai plagiarism checker that uses advanced algorithms to detect similar content.

It’s cloud-based and can detect plagiarism in various languages. This tool checks websites, academic journals, and internal documents hosted online.


  • Advanced algorithms for plagiarism detection.
  • Has ai content and paraphrasing detectors.
  • Can detect plagiarism in various languages.
  • Very large database.
  • Easy to use.


  • Limited free version, currently 10 pages or 2500 words.
  • The paid version is limited to page length.


turnitin plagiarism checker

Turnitin is the number one plagiarism checker used by many universities and academic institutions.

It checks for similarity in the text against various online sources, academic papers, and previously submitted work by other students.

Plus, Turnitin provides a detailed report of sources of copied content.


  • Standard plagiarism detector for schools.
  • Checks against various online sources and academic papers.
  • Offers ai detection.


  • Expensive for individuals.
  • Barely suitable for non-academic use.
  • No direct UI/UX interface.
  • It’s enterprise software.

Worthy mention: quillBot plagiarism checker

quillbot plagiarism checker

Quillbot is another excellent AI writing tool that has a built-in plagiarism checker.

The tool uses advanced algorithms to detect plagiarism and provides suggestions for rephrasing plagiarized content.

Quillbot’s plagiarism checker is quick and efficient, generating reports in seconds. This is a good option if you already have quillbot premium because there is no free version.

The downside is that quillBot plagiarism checker is limited to only 20 pages or 5000 words per month.

Which chatgpt ai plagiarism checker is the best?

As someone who has used these tools for years, I know that each one has something unique to offer.

If all you want to check is plagiarism, then you should use Copyscape. It is simple to use, direct, and cheap.

But if you also want to detect ai content, then you should go for or copyleaks.

As mentioned earlier, Turnitin is for schools and large corporations.

One thing you should be aware of is that Grammarly’s plagiarism checker can waste your time. I find it to be too sensitive and detects phrases that have nothing to do with your text.

For example, you might be writing about food and Grammarly will detect plagiarism on a car blog.

So, you need to invest time to sort out the false plagiarism. For me, unless you have a paid Grammarly subscription, the plagiarism checker is not the best option.

All the tools listed in this article are paid. Click this link if you would like to try out some free plagiarism detectors before paying for a subscription.

The verdict

While ChatGPT is a useful tool for generating original text, it is important to use it ethically.

The best way to do this is by using reliable plagiarism checkers to avoid instances of any penalty.

By comparing the pros and cons of the top five plagiarism checkers, this article has provided all you need to help you choose the one that best suits your needs.