User Agent Parser

Parse a browser user-agent string to identify the browser, version, operating system, device type, model and rendering engine.

What is the User Agent Parser?

Browsers send a User-Agent header describing themselves. It is useful for debugging and analytics, though it can be spoofed.

How does it work?

Pattern rules identify browsers (ordered carefully, since most include “Chrome” or “Safari”), operating systems, device vendors and bots. Your own user agent is pre-filled.

Example

An Android 14 Samsung phone running Chrome 129 is detected as Chrome 129, Android 14, mobile, Samsung SM-S918B.

Frequently asked questions

Is my data sent to a server?

No. This tool runs entirely in your browser; nothing you paste is uploaded or stored.

Why does Windows 11 show as “10 / 11”?

Windows 11 still reports “Windows NT 10.0” in the user agent; only Client Hints can distinguish them.

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