How to use
- Your own User-Agent is filled in automatically.
- To check another one, paste it from a log file or analytics tool.
- Read the browser, engine, operating system, device type and crawler detection.
Options explained
- Device type
- Desktop, mobile, tablet or TV, based on the platform hints in the string.
- Crawler / bot
- Recognises common search engine and AI crawlers, social preview bots, headless browsers and command-line tools such as curl.
Examples
| User-Agent | Result |
|---|---|
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html) |
Googlebot crawler |
… (iPhone; CPU iPhone OS 18_0 like Mac OS X) … Version/18.0 Mobile/15E148 Safari/604.1 |
Safari 18 on iOS 18, iPhone |
Frequently asked questions
Can a User-Agent be faked?
Yes. Any client can send any string, and privacy features in modern browsers freeze or reduce parts of it. Use it for statistics and debugging, not for security decisions.
Why does Chrome report Windows 10 on Windows 11?
Chrome froze the Windows version in the User-Agent string. The exact version is only available through User-Agent Client Hints.
Is my User-Agent sent anywhere?
No. It is read and parsed in your browser.
Privacy
This tool runs entirely in your browser. Your files and text are processed on your device and are never uploaded to our servers.