User Agent Parser
Break a browser user agent string into browser, OS and device hints.
Quick answer: enter your details below and click Parse user agent — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Paste a user agent string.
- Click Parse user agent.
- Read the browser, operating system and device hints.
About this tool
Every browser sends a user agent string that mentions its engine, version and operating system, but the format is messy and full of historical quirks. This tool applies simple pattern matching to pull out a browser, operating system and device hint, and labels the result as a heuristic: user agent strings can be spoofed or customised, so they are never definitive detection.
Frequently asked questions
Can a user agent string be faked?
Yes, easily, which is why this breakdown is a hint for debugging and analytics, not proof of what software is really running.
Why does a Chrome string mention Safari?
For historical compatibility, most browsers include tokens from older engines, so raw strings look confusing until they are parsed.