User-Agent Parser

Paste a User-Agent string and it is broken down as you type.

How it works

This is a best-effort heuristic, not an authoritative lookup. A User-Agent string is simply whatever the browser chooses to send — it is self-reported, commonly spoofed by extensions and testing tools, and increasingly frozen or reduced by browsers themselves. This tool runs a short list of ordered pattern matches against common, current UA shapes; it is not backed by a maintained device/browser signature database, and it can be wrong, especially on unusual or older strings.