Does Grammarly Check for Plagiarism? What You Must Know

Does Grammarly check for plagiarism? There is a Grammarly plagiarism checker, but how does this grammar check tool work? Learn more about this feature below.

Do you need to check for plagiarism in academic papers, online articles, or a simple blog post? Grammarly can help you. The program has a premium feature that you can add to your account for an extra monthly fee. Then, you can use its proprietary software to look for signs of duplicate content in your work before you submit or publish it.

Grammarly is a popular tool to check spelling, punctuation, and grammatical errors, but premium accounts feature a plagiarism checker. While the free version comes with a spell checker, you will need to upgrade your Grammarly account to the premium version to access the plagiarism detector. Take full advantage of this plugin for Chrome and Google Docs, and learn how it works.

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How Does the Grammarly Plagiarism Checker Work?

Does grammarly check for plagiarism?

The Grammarly plagiarism checker uses an algorithm to check your work against countless web pages published on the internet. Then, you receive a plagiarism report, letting you know if your content is original or not. You will only be able to access the plagiarism checker if you upgrade to the premium plan.

Even though some features of Grammarly will work in Chrome, you will need to use the Grammarly Editor if you want to check for plagiarism. The steps include: 

  • Open the Grammarly Editor.
  • Paste your document into the Grammarly page.
  • Click on the plagiarism button.

You may see a bunch of light blue lines underneath your content. This is a sign that the plagiarism checker is working and that it might have found some issues. If you like this article, don’t forget to read our guide to the best plagiarism checkers.

How Does the Grammarly Editor Actually Work?

Does Grammarly check for plagiarism?
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The program uses private databases to look for paragraphs and sentences that have already been published elsewhere. If you see light blue lines start to show up underneath your content, this is a sign that Grammarly has detected plagiarism issues.

The program uses algorithms to check billions of pages on the internet to look for similarities in words, phrases, and sentence structure. If the program finds areas that might have been plagiarized, blue lines show up underneath your content.

If you click on the blue line, the program will link the original source content. Grammarly will also give you a percentage representative of the portion of your document that appears to be plagiarized. It will also give you an originality score.

After this, you can make changes to your work to address the plagiarized issues if you desire. Importantly, Grammarly is not saying that your content is plagiarized, but it is saying that your content might be considered duplicate if you don’t fix it. Search engines might penalize you for this.

Grammarly Plagiarism Checker Review: The Pros

If you decide to go with this plagiarism checker, there are several advantages you will enjoy.

  • Grammarly is one of the most accurate plagiarism checkers available. You do not have to worry about this tool overlooking something. Even if the content is hidden behind a paywall, it will check against it.
  • The plagiarism checker is straightforward. All you have to do is take your document, paste it into a blank document, and click the button to watch the plagiarism checker go to work. 
  • Unlike a lot of other tools, which simply tell you that the content is similar, Grammarly will actually tell you where the identical content is coming from.

Take full advantage of these benefits by going with the plagiarism checker from Grammarly. 

The Drawbacks of the Grammarly Plagiarism Checker

Even though this is one of the best tools available, there are a few drawbacks as well.

  • Grammarly can get a bit overzealous at times. Even if there are only three or four similar phrases, it may still be flagged as plagiarism. So investigate!
  • Right now, the tool only works in English. If you are writing a document in another language, this plagiarism checker is not going to work well for you.
  • The feature is expensive and available in the Premium version only. That costs approximately $30 per month.

Make sure you think about the benefits and drawbacks before you decide if you want to use this tool. Even though it can be helpful in some situations, it is not necessarily right for everyone. It’ll catch some obvious types of plagiarism, but not more subtle types like paraphrasing.

Final World on Does Grammarly Check for Plagiarism

Regardless of what you are writing, be careful to avoid plagiarism. This is a serious issue, and it can significantly harm the quality of your writing. Furthermore, if you publish online, you might be dinged by search engines, which can harm your online visibility. The consequences of plagiarism are severe.

If you are looking for a reliable plagiarism checker that can also improve your writing style and sentence structure, you may want to use Grammarly’s plagiarism checker. Even though you might be able to find a free plagiarism checker, you might have to use a premium option if you want to use the best plagiarism checker.

You will need to upgrade to a premium account if you want to check for duplicate content, but can check for plagiarism for a blog post, research paper, or book. Even though the free tool can catch grammar errors, you will need to upgrade if you want to use the plagiarism checker tool.  Like this? Read our Grammarly review

FAQs About Does Grammarly Check for Plagiarism

Are there other types of plagiarism detection software I can use?

Yes, you can use other tools such as TurnItIn and Prowritingaid if you want to access a premium plagiarism checker. You might want to take advantage of Proquest’s databases as a way to look for plagiarism.

What are the penalties if I am caught plagiarizing information?

It depends on where you publish the contest. For example, if student papers are found to be plagiarized, it is not unusual for the teacher to give that student a zero. If the plagiarism was intentional, the student may even be in violation of the honor code. If you publish plagiarized content online, then this could harm your SEO rankings. When it comes to plagiarism, the best piece of advice to follow is to simply avoid it.


  • Bryan Collins is the owner of Become a Writer Today. He's an author from Ireland who helps writers build authority and earn a living from their creative work. He's also a former Forbes columnist and his work has appeared in publications like Lifehacker and Fast Company.