Grammarly AI Plagiarism Checker

What Is Grammarly AI Plagiarism Checker?

Grammarly’s AI Plagiarism Checker flags instances where text may have been copied without proper credit. It uses AI-powered algorithms to compare your writing against a large library of existing content, including web pages and academic papers. After scanning, it produces a report that highlights passages too similar to other sources, so you can add citations or revise to ensure your work is original and meets academic standards.

Beyond plagiarism detection, Grammarly’s tools also include grammar correction and general writing improvements, which can raise the overall quality of your text.

Who’s Behind It?

The checker is developed by Grammarly, a company known for writing tools that help make text clear, original, and academically sound. Grammarly’s AI writing support also guides users on how to use generative AI responsibly, which is useful for both students and professionals.

How to Use It

1. Input your text: Type directly into the checker or upload a file containing the writing you want to examine.
2. Start the scan: Hit the scan button to run the plagiarism check.
3. Review the findings: The checker highlights any parts of your text flagged for plagiarism, along with other writing issues it spots.

Avoiding Plagiarism

Understanding how plagiarism happens is the first step to avoiding it. Always cite your sources correctly and give credit to the original author — or to any AI tool you used — when working with material that isn’t entirely your own.

Grammarly’s online plagiarism checker scans billions of web pages and academic databases to identify duplicate content that needs a citation, including text generated by AI. Using it before submission helps you catch and properly attribute anything that isn’t unique.