User Agent Parser — Browser & OS Detector Online
Parse any User-Agent string to identify browser, OS, device type, and version. Test your own browser's UA automatically.
Try popular user agents
Frequently Asked Questions about User Agent Parser
- Is User Agent Parser completely free to use?
- Yes, User Agent Parser is 100% free with no sign-up, no watermarks, and no usage limits.
- Is my data private?
- User Agent Parser runs entirely in your browser — no data is ever sent to our servers. Your content stays on your device.
- Does it work offline?
- Once the page has loaded, User Agent Parser works fully offline in your browser — no internet connection is required.
- Is my sensitive data processed locally?
- Yes, all cryptographic operations run in your browser using the Web Crypto API. Your keys and secrets never leave your device.
- Does User Agent Parser work on mobile and tablet?
- Yes, User Agent Parser is fully responsive and works in all modern browsers on desktop, tablet, and mobile.
This tool runs entirely in your browser. No data is ever sent to our servers.