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Is Grammarly: AI Writing Assistant and Grammar Checker App safe?

This security report analyses whether Grammarly: AI Writing Assistant and Grammar Checker App is safe to install on your browser. We check Grammarly: AI Writing Assistant and Grammar Checker App for malicious behaviour, data exfiltration, suspicious permissions, and known vulnerabilities so you can decide if Grammarly: AI Writing Assistant and Grammar Checker App is safe for your personal or enterprise fleet.

Medium risk

Grammarly is a widely-used AI writing assistant that transmits user-typed text to Grammarly servers for grammar and style analysis. The extension requests broad host permissions (all URLs), access to cookies, the identity API, and optional nativeMessaging, all of which are disclosed in its privacy policy and consistent with the extension's documented purpose.

0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Updated 10 April 2026kbfnbcaeplbcioakkpcpgfkobkghlhen

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