See the exact user-agent string your browser sends to every website, with the browser name and version, operating system, device type and screen size read out for you. Paste any other user agent from a log to decode it too.
loading toolHow to find your user agent
- Open the page: your own details show at once.
- Tap Copy next to any line to share it with support.
- To decode another user agent, paste it in the second box.
Good to know
- Chrome on iPhone shows “CriOS” and Firefox on iPhone “FxiOS”: on iOS every browser uses Apple’s WebKit engine.
Questions
Why would I need my user agent?
Support teams often ask for it to reproduce a bug. Developers use it to check which browser and device a visitor had.
Why does Windows 11 show as Windows 10?
Windows 11 still sends “Windows NT 10.0” in its user agent, so the two cannot be told apart from this string alone.
Can websites identify me from it?
Not alone: millions of people share the same user agent. Combined with other details it adds to browser fingerprinting.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
