Grammarly’s plagiarism checker is a popular tool that scans your writing against billions of web pages to find any copied or duplicate content. But how accurate is it? In this Grammarly Plagiarism Checker Review (2025): Accuracy Tested, we look closely at how well it works for students, writers, and professionals.
This plagiarism checker is part of Grammarly’s premium features and promises to help users make sure their work is original and free from plagiarism. To test this, we used the tool on different types of content, including published articles, unpublished drafts, and edited texts. We wanted to see how well it finds copied material and how accurate it really is.
If you are thinking about using Grammarly’s plagiarism checker, this review will help you understand its strengths and weaknesses so you can decide if it is the right choice for you.
This article will review Grammarly’s accuracy, explore its features and pricing plans, and compare it with other top plagiarism detectors.
By the end of this article, you should understand how accurate Grammarly Plagiarism Checker will likely be in 2025 – so you can make an informed decision about whether or not you should purchase a particular product.
So let’s learn about the tool without any delays, shall we?
Why Use a Plagiarism Checker?
Using a plagiarism checker is an essential part of any writer’s toolkit. Grammarly Plagiarism Checker is one of the best plagiarism checkers available, and its review by writers is overwhelmingly positive. You can get an even more accurate plagiarism check with the Grammarly premium version.
The way it works is that it compares your text to online sources to detect any instances of plagiarism. For example, if you want to use the plagiarism checker without paying for the premium version, you can still do so, as some free versions are available.
This will help ensure that any written content you produce is original and not copied from elsewhere, which could lead to serious consequences if found out.
Grammarly Plagiarism Checker: In a Nutshell
The Grammarly Plagiarism Checker is an excellent tool for anyone who needs to check for plagiarism. It is a great tool for students and professionals alike. With the premium version of the software, you can quickly and accurately check plagiarism with its advanced algorithm.
The software compares your text with billions of sources on the web, looking for instances of plagiarism. It also gives you valuable feedback and suggestions on improving your writing.
The free version of Grammarly Plagiarism Checker provides a basic analysis to detect plagiarism, while the premium version can detect more subtle plagiarism. Its easy-to-use interface lets you quickly look at any text and check for plagiarism instantly.
How To Use Grammarly Plagiarism Checker?
Grammarly Plagiarism Checker: Key Features
The widespread use of Grammarly Plagiarism Checker is due to the tool’s countless features. If you are not sure what these features could be other than checking for content originality, don’t worry. Instead, we have outlined some of the key features below.
- Detects the percentage of plagiarized content
- Content-sensitive analysis
- Scans for complex and common grammatical errors.
- Advanced proofreading and spell-checker
- Suggestions for better word choices and punctuation.
Besides, you can use all the premium features with the built-in plagiarism checker!
How Does Grammarly’s Plagiarism Checker Work?
Grammarly can also be used as a spelling and grammar checker, making it a great all-in-one solution for improving your writing. With its plagiarism detection feature, you can rest assured that your work will remain original and unique.
One limitation of Grammarly’s Plagiarism Checker is that it can only detect similarities between two texts. This means that if a writer has taken content from multiple sources, the plagiarism checker may not catch all of them, and it could give an incorrect result.
It can also detect any grammar or spelling errors you may have missed. Finally, it can provide helpful hints and tips on how to improve your writing style and structure.
Grammarly Plagiarism Checker: Benefits
Now that you know the critical features of Grammarly Plagiarism Checker let us see why you should use this tool above any other that checks for plagiarism. Some of the significant advantages that we found interesting are listed below.
- Detects Plagiarism from Several Sources
One thing you should be reassured about while using Grammarly to detect plagiarism is the tool missing out on a webpage or another published piece of content. This is because it checks the content for plagiarism against billions of web pages and over a billion student papers. So even if the content is hidden behind a paywall, Grammarly will also look for plagiarism against that.
- Ease of Use
The tool has a beginner-friendly UI, making it easy for everyone to use. All you need to do is copy the content of your document, paste it into the tool, and click on the plagiarism button. The tool will look for content originality, and the results will be in front of you within seconds.
- Know the Sources
Several plagiarism checkers detect plagiarism, show the percentage of plagiarism detected, and that is it. Unlike these, Grammarly Plagiarism Checker indicates similar content and provides a list of sources from which the identical text comes.
Grammarly Plagiarism Checker: Drawbacks
Although Grammarly Plagiarism Checker is among the best tools, it has disadvantages. So before you start guessing the drawbacks by yourself, let’s look at the list we curated.
- Paid Feature
Unlike other Grammarly features for spelling and grammatical mistakes, the plagiarism checker is available only in the Premium version. Therefore, you must purchase an expensive plan to access the tool.
- Lags in Longer Pieces of Content
If you are editing long-form articles or content that is nearly or over 1,000 words, there is a high possibility of experiencing lags in Grammarly Plagiarism Checker. In such scenarios, you will be required to reload the page, wait for the tool to detect plagiarism, and in some cases, restart the browser as well.
- Only Available in English
One of the major drawbacks of Grammarly Plagiarism Checker is that the tool is available only for content written in the English language. This means you cannot check for plagiarism or errors if you write in another language.
Grammarly Plagiarism Checker: Is it Reliable in 2025?
Yes, Grammarly is still reliable in 2025, and after understanding the working of the tool, its features, pros, and cons, it’s time to find out if Grammarly Plagiarism Checker is reliable. Well, the tool comprises incredible capabilities for detecting plagiarism. So not only does it pinpoint piracy through its enormous database, but it also provides the user with a link to the initial source.
However, according to the website of Grammarly, the tool’s results are not a hundred percent accurate. Further, like other software, Grammarly Plagiarism Checker cannot detect whether the content has been written using a paraphrasing tool or manually.
Overall, if you are on a budget and need a grammar checker along with a plagiarism checker tool, Grammarly would be ideal. It suits students, working professionals, business owners, and more.
Can You Use Grammarly Plagiarism Checker for Free?
| Feature | Free | Premium | Business |
|---|---|---|---|
| Price | $0/month | $30/month ($12/month annual) | $25/user/month ($15 annual) |
| Plagiarism Check | No | Yes | Yes |
| AI Writing Prompts | 100/month | 1000/month | 2000/month |
| Tone & Grammar Check | Yes | Yes | Yes |
| Multiple Accounts | No | No | Yes |
Conclusion: Grammarly’s Plagiarism Checker is Reliable but Not 100% Accurate!
From my testing, Grammarly’s plagiarism checker is fast and fits smoothly into your writing process. It’s great for quick checks and short pieces. However, during the tests, it missed some copied parts, especially in longer or heavily edited texts.
If you only need to check short content sometimes, Grammarly’s tool should work fine. But if you want thorough and detailed plagiarism detection, it’s better to use specialized tools made just for that.
Overall, Grammarly is a helpful assistant but not a complete solution when it comes to catching every bit of copied content.
Frequently Asked Questions:
Grammarly Plagiarism Checker helps detect plagiarism against billions of web pages and academic papers. You can also find the original content source if your text turns out to be copied. However, Grammarly does not provide a feature for correcting plagiarism.
Yes, the utilization of Grammarly is acceptable. Using a spellchecker is not thought of as cheating, but you should check with your university regarding the policy of plagiarism and cheating before using the tool.
In terms of plagiarism detection, Turnitin is more accurate than Grammarly. But if we look at the overall assistance of tools in writing, Grammarly is better, considering its features like spell checker and grammar checker.
Unfortunately, the plagiarism checker feature comes with the premium plan. You cannot purchase Grammarly plagiarism checkers separately. Instead, you will have to purchase the premium version.
- Top 10 Free Plagiarism Checker Tools in 2025 (Try Now) - August 22, 2025
- Quillbot Free Trial 2025 – Access Without Limits - August 20, 2025
- 7 Best Free Grammar Checker Tools for 2025 - August 12, 2025