Runs in your browser
User agent parser
Browser, system and device from a UA string.
What this does
Reads a browser's user agent string and pulls out the browser, operating system, device and rendering engine. The box starts filled with your own browser's string — paste in any other one to read that instead.
Why it is unreliable
A user agent string is whatever the browser chooses to send, and browsers routinely lie to it to avoid being blocked by old sniffing code. Treat the result as a hint, not a fact you can build access control on.
Unknown fields
A field is left blank when the string does not say — a desktop browser's string, for example, says nothing about a device vendor or model.