User-Agent Parser
Paste any User-Agent string to see the browser, rendering engine, operating system and device behind it. Leave the box blank and submit to parse your own browser. The result also flags known bots and crawlers.
How to use it
- Paste a User-Agent string into the box — or leave it blank to use your own browser's.
- Press Parse User-Agent.
- Read the breakdown: browser, engine, operating system, device and whether it is a bot.
Why use it
User-Agent strings are dense and easy to misread. Parsing one tells you at a glance which browser, engine, OS and device a request came from — useful for debugging analytics, reproducing browser-specific bugs, filtering crawler traffic from your logs, and verifying how a client identifies itself before you trust it.
FAQ
What does a User-Agent parser do?
It reads a User-Agent string — the short identification line a browser sends with every request — and breaks it into the browser name and version, the rendering engine, the operating system and the device type, manufacturer and model.
How do I find my own User-Agent?
Leave the input blank and submit. The tool parses the User-Agent your browser sent with the request, so you instantly see how servers identify you.
Can it detect bots and crawlers?
Yes. When the supplied User-Agent belongs to a known crawler or automation tool, the result is flagged as a bot so you can tell real visitors from automated traffic.
Is there an API for User-Agent parsing?
This page is a free browser tool. For programmatic SERP, keyword and competitor data at scale, see the Kwinside API, which is pay-as-you-go with free daily requests.