Toolsly
Parser

User-Agent Parser

Decode a User-Agent string into the bits that actually matter — which browser, which engine, which OS, what device. Useful when you're triaging an analytics tag, debugging a bug that only reproduces on one platform, or building feature gates by client capability. The parser library used (ua-parser-js) handles thousands of UA patterns including mobile devices, smart TVs, gaming consoles, bots and the new Sec-CH-UA hints. Runs entirely in your browser.

Privacy

Runs entirely in your browser — nothing is sent to any server.

Cost

Free. No sign-up, no watermark.

Type

Parser

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Frequently asked

Is User-Agent Parser free to use?

Yes. User-Agent Parser is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.

Do my files and data stay private?

Yes — User-Agent Parser runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.

How does User-Agent Parser work?

Open User-Agent Parser, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.

Which browsers does User-Agent Parser support?

Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. User-Agent Parser uses standard web APIs and does not require any plugin, extension, or sign-up.