FREE TOOL

What is my user agent?

Your browser's User-Agent string and what it means, parsed the moment the page loads.

Reading your browser…

Free, no key at all. The request already carries the answer.

THE API UNDERNEATH

GET /useragent

The bare route parses the User-Agent your browser already sends, no key needed. Pass ?ua= from your own code to parse any string, with bot, AI, and device detection on the same response.

Useragent APIBrowser directory

QUESTIONS

Why did it load without me typing anything?
Your browser sends its User-Agent header with every request, so the page already had the answer. The bare endpoint parses it without a key.
Can I parse other strings?
Yes. Paste any User-Agent into the box, or pass ?ua= from code. Bots, AI crawlers, and devices are detected on the same response.
Why does my Chrome say Mozilla?
History. Every browser has claimed to be Mozilla since the 1990s so old servers would not turn it away. The parsed fields are the real answer.
Can I do this from code?
GET /useragent with no key parses the calling browser. GET /useragent?ua= parses any string on a plan key. Both on /useragent.