Is Tampermonkey safe?

This security report analyses whether Tampermonkey is safe to install on your browser. We check Tampermonkey for malicious behaviour, data exfiltration, suspicious permissions, and known vulnerabilities so you can decide if Tampermonkey is safe for your personal or enterprise fleet.

Clean risk

Tampermonkey is the most popular userscript manager for Chrome, with ~11 million users. By design, it requires extremely broad permissions because its core functionality is to inject and execute arbitrary user-supplied JavaScript on any webpage.

v5.4.1Chrome Web Store

0Risk

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

Publishers can request a review.