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Check Google Docs™, Google Sheets™ and Google Slides™ for plagiarism and AI-generated content without leaving your work. Powered by Quetext's DeepSearch™ technology.
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Listing updated:October 19, 2026
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Overview
Quetext tells you whether your writing is original. DeepSearch™ technology spots exact copies and reworded passages, ColorGrade™ feedback color-codes each match beside its source, and the AI detector flags text that reads as machine-written. With this add-on, you can run those checks right inside Google Docs™, Google Sheets™ and Google Slides™.

What you can do
- Check the document, spreadsheet or presentation you have open, or only the text or cells you have selected.
- Run a plagiarism check, an AI detection check, or both at once.
- See your plagiarism score and every match with its source, with the matched words highlighted, just like the Quetext report.
- Move between matches and find each matched passage in your document or sheet.
- See the AI score, the document type (AI, Mixed or Human) and the sentences flagged as likely AI.
- Open the full report in your Quetext account.

How it works
1. Open Extensions > Quetext > Open Quetext.
2. Connect your Quetext account.
3. Choose what to check and click Run check.
4. Review the results in the sidebar, then open the full report in Quetext if you need more.

Why Quetext
Over 10 million students, teachers and professionals use Quetext to check essays, articles and reports. DeepSearch™ compares your text against billions of web pages, over 20 million books and more than 1 million academic journals, catching both word-for-word copying and reworded passages.

Your data
The add-on only reads the file you have open, and only when you start a check. It sends only the text you choose to check to Quetext. It does not access your other files. Content from Google Workspace™ is never used to train AI models, sold, or used for advertising. See our privacy policy at https://www.quetext.com/privacy-policy.

Plans
Checks use the word allowance of your Quetext plan. Plagiarism and AI detection checks in the add-on need a paid Quetext plan. See https://www.quetext.com/pricing.

Google Workspace™, Google Docs™, Google Sheets™ and Google Slides™ are trademarks of Google LLC.
Additional information
PricingFree of charge with paid features
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Quetext: Plagiarism Checker & AI Detector will ask for the permissions shown below. Learn more
Quetext: Plagiarism Checker & AI Detector will need access to your Google account
This will allow Quetext: Plagiarism Checker & AI Detector to :
View and manage documents that this application has been installed in
View and manage spreadsheets that this application has been installed in
View and manage the Google Slides presentations that this application is installed in
Connect to an external service
Display and run third-party web content in prompts and sidebars inside Google applications
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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