Check documents for plagiarism, grammar and AI directly in Google Docs™, Sheets™ & Slides™. Get similarity scores, highlighted matches, and source links instantly.
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Listing updated:February 4, 2026
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Overview
Plagiarism Checker for Google Docs™, Sheets™ & Slides™

Make your writing original and trustworthy — right inside Google Docs™, Sheets™ & Slides™. Plagiarism Checker helps students, teachers, researchers, and professionals ensure their content is authentic and properly cited. With just one click, you can scan your document against billions of online sources and instantly see if any part of your text needs attention.

The tool checks for plagiarism, grammar and AI directly within Google Docs™ and Sheets™ & Slides™, and highlights matched text along with the sources. You also receive a clear similarity score, making it easy to understand how much of your document overlaps with existing content. Reports are simple to read and designed to help you improve your writing and citations. Best of all, your documents remain secure thanks to a privacy-first approach.

Whether you are a student submitting an assignment, a teacher verifying originality in class work, a writer or researcher publishing articles, or a business preparing professional documents, a plagiarism checker combined with advanced Grammar and AI-detection tools makes the entire process effortless. These features help you correct grammatical errors, identify AI-generated content, and ensure complete originality before submission. You save time, avoid unintentional mistakes, and gain confidence knowing your work is accurate, polished, and authentically yours.
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PricingFree of charge with paid features
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BEST Plagiarism Checker for Google Docs™ will ask for the permissions shown below. Learn more
BEST Plagiarism Checker for Google Docs™ will need access to your Google account
This will allow BEST Plagiarism Checker for Google Docs™ to :
View and manage documents that this application has been installed in
View and manage the Google Slides presentations that this application is installed in
View and manage spreadsheets that this application has been installed in
Connect to an external service
Display and run third-party web content in prompts and sidebars inside Google applications
View your country, language, and timezone
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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Steven Bright
January 21, 2026
I found the Plagiarism Checker extremely helpful and easy to use. Because it works directly within Google Docs, there’s no need to copy or upload content elsewhere. With a single click, it quickly detects plagiarism, highlights matched text along with sources, and provides a clear similarity score. Overall, the tool helped me improve my writing and confidently submit original, error-free content. I highly recommend it to students, writers, and professionals.
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syed shafiq usman
January 21, 2026
The plagiarism checker is simple to use and provides reliable results. The AI detection feature is a nice added benefit that helps ensure the content stays original.
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Erin Kater
January 21, 2026
I have used Plagiarism Checker, and it is very helpful and easy to use. It works directly inside Google Docs, so I don’t need to copy or upload my content anywhere else. With just one click, it quickly shows plagiarism, highlights matched text with sources, and gives a clear similarity score. Overall, this tool helped me improve my writing and submit original, error free content. I highly recommend it to students, writers, and professionals.
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Kanwal Saleem
January 21, 2026
This plagiarism checker is one of the best tools I’ve used for Google Docs. It integrates seamlessly with Docs, making it extremely convenient to check content without leaving the document. The detection accuracy is impressive, and it highlights issues clearly so you can fix them quickly. It works fast and saves a lot of time, especially for writers, students, and content creators. Highly recommended for anyone who cares about originality and quality writing!
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Uridah CA
January 21, 2026
I used this tool to check plagiarism in my academic papers, and it gave me accurate results. I then corrected the highlighted parts to avoid any kind of penalty. It’s a very useful tool for students, teachers, and anyone involved in writing.
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Haseeb Arshad
October 31, 2025
The BEST Plagiarism Checker for Google Docs is an excellent tool for ensuring content originality. It integrates smoothly with Google Docs, highlights matched text clearly, and links to original sources for easy review. I love how accurate and fast it is. Highly Recommended!
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Work place
December 2, 2025
The top plagiarism checker for Google Docs is a great option for maintaining original content. It works seamlessly within Google Docs, clearly marks any matching text, and provides direct links to the sources for quick verification. I really appreciate its speed and accuracy. Definitely recommended!
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David Mitchal
January 21, 2026
I just used this tool to check plagiarism, and it showed the perfect result. Best tool for academic use and easy to use. It showed the direct link to the website for verification.
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