User Agent Parser
Parse any user agent string — browser, version, engine, OS and device. Yours is pre-filled.
Decode any user agent string into browser, version, engine, operating system and device type. Useful for debugging, web analytics and understanding exactly what is visiting your site.
Parsed locally from the user agent string your browser sends.
How to use the User Agent String Parser
- Paste a user agent string.
- Browser, engine, OS and device are parsed instantly.
- Use it to debug 'unsupported browser' issues or segment your visitors.
Frequently asked questions
What is a user agent string?
A header every browser sends identifying itself: browser, version, rendering engine, OS and device. It is how sites know what you are using.
Where do I find a user agent string?
In your browser's dev tools (Network tab), in server logs, or by searching 'my user agent'. This page also shows your own UA at the bottom.
Can user agents be spoofed?
Yes — browsers, bots and VPN extensions can send any UA. Treat the string as a hint, not proof.
Why does Chrome's UA mention AppleWebKit?
All Blink-based browsers (Chrome, Edge, Opera) keep legacy tokens like AppleWebKit for compatibility.