Analyseur User-Agent

A User-Agent is a string sent by your browser to every website you visit. It identifies the browser version, operating system, and device type, allowing servers to optimize content for your specific environment.

Paste a User-Agent string into the input box or click Use This to analyze your current browser string. The tool will break down the browser engine, OS version, and device characteristics.

Debugging website compatibility issues, analyzing web server logs to identify bot traffic, verifying browser spoofing, and understanding device distribution in your audience.

Many modern browsers freeze or simplify their User-Agent strings to prevent fingerprinting. Always look for the Version or Chrome tokens for the most accurate version info.