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Device & User-Agent Info
See your browser, OS, screen, GPU and supported features, or parse any user-agent string.
Free, no uploads, no sign-up. Runs 100% in your browser.
How Device & User-Agent Info works
Reads what your browser reports through standard APIs and parses user agents with ua-parser-js 1.x (MIT). Nothing is sent anywhere.
How to use Device & User-Agent Info
- Open Device & User-Agent Info and paste or type your input.
- Results update instantly as you type.
- Tweak options such as format, indentation or algorithm.
- Copy the output or download it as a file.
Tips
- Everything is computed locally. Safe for tokens, keys and private data.
- Use Ctrl/⌘ + K to jump between developer tools quickly.
Device & User-Agent Info FAQ
- Are my files uploaded?
- No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
- Is it free? Are there limits or watermarks?
- Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
- Does it work offline?
- Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.
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