Grammarly Plagiarism Checker: A Comprehensive Review

Pradip Maheshwari
Grammarly Plagiarism Checker


Nowadays, plagiarism has become a growing concern across various domains, from academic circles to professional writing. With the vast amount of information available online, it’s crucial to have reliable tools that can detect and prevent unintentional plagiarism. One such tool that has gained immense popularity is Grammarly’s Plagiarism Checker. Integrated into Grammarly’s Premium and Business accounts, this feature has become a go-to solution for writers, students, and professionals alike.

Key Features of Grammarly’s Plagiarism Checker

Extensive Database Coverage

One of the standout features of Grammarly’s Plagiarism Checker is its vast database coverage. The tool scans your text against billions of web pages and academic papers stored in ProQuest’s databases, ensuring a comprehensive check for potential plagiarism. With over 16 billion sources at its disposal, Grammarly’s Plagiarism Checker offers a robust solution for detecting copied content from a wide range of sources.

Accurate and Reliable Detection

Accuracy is paramount when it comes to plagiarism detection, and Grammarly’s Plagiarism Checker delivers on this front. Various reviews and analyses have cited an accuracy rate of around 86%, making it a reliable tool for identifying plagiarized content. While it may not be as thorough as specialized academic tools like Turnitin, Grammarly’s Plagiarism Checker strikes a balance between accuracy and ease of use.

User-Friendly Interface and Integration

Grammarly’s Plagiarism Checker is designed with user-friendliness in mind. It seamlessly integrates into the Grammarly editor, ensuring a seamless experience for users. Additionally, the tool is accessible through browser extensions and desktop applications, allowing you to check for plagiarism across various writing platforms and devices.

Additional Writing Assistance Features

Beyond plagiarism detection, Grammarly offers a comprehensive suite of writing assistance features. The tool provides grammar and spell checking, writing style suggestions, and even a citation assistant. This integrated approach makes Grammarly a valuable resource for writers looking to improve their overall writing quality while ensuring originality.

Pros and Cons of Grammarly’s Plagiarism Checker


  • Comprehensive Database: Grammarly’s Plagiarism Checker scans a vast number of sources, including academic papers and web pages, making it effective for detecting a wide range of plagiarized content.
  • Integrated Writing Assistance: In addition to plagiarism detection, Grammarly offers grammar and style suggestions, creating a comprehensive writing tool.
  • User-Friendly Interface: The tool boasts a clear and intuitive interface, ensuring a seamless user experience and easy integration into various writing platforms.


  • Limited to English: Grammarly’s Plagiarism Checker currently only supports English, which can be a limitation for non-English content.
  • Cost: Access to the plagiarism checker requires a premium subscription, which can be expensive compared to some other tools on the market.
  • Performance with Complex Texts: Some reviews indicate that Grammarly may struggle with detecting plagiarism in heavily edited or complex academic texts, with its accuracy scoring below 50% in certain tests.

Comparison with Other Plagiarism Detection Tools

While Grammarly’s Plagiarism Checker is a popular choice, it’s important to understand how it compares to other tools in the market. Here’s a brief comparison:


Turnitin is often considered the gold standard for academic plagiarism detection due to its larger database and specialized focus on this area. While it may be more accurate than Grammarly for academic purposes, it typically comes at a higher cost and lacks the comprehensive writing assistance features offered by Grammarly.


Quillbot has been noted for its higher plagiarism detection quality, especially in academic settings, compared to Grammarly. However, it may not offer the same level of integration and user-friendliness as Grammarly’s solution.

Other Alternatives

Tools like WhiteSmoke and ProWritingAid offer similar features to Grammarly’s Plagiarism Checker but may be more cost-effective or support multiple languages, making them viable alternatives for users with specific needs.


Grammarly’s Plagiarism Checker is a robust tool that offers a comprehensive solution for detecting plagiarism and improving writing quality. With its extensive database coverage, accurate detection capabilities, and user-friendly interface, it has become a popular choice among students, writers, and professionals. However, it’s important to consider the limitations, such as its language restriction and potential performance issues with complex academic texts.

While Grammarly’s Plagiarism Checker may not be the most specialized tool for academic purposes, it strikes a balance between functionality and ease of use, making it a viable option for those seeking a reliable and integrated solution for plagiarism detection and writing assistance. Ultimately, the choice of tool will depend on individual needs and preferences, but Grammarly’s offering remains a strong contender in the market.

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