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Send HTTP requests from your browser and inspect responses.
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- No signup
Private on your device
Your information stays on your device and is not uploaded.
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Paste a browser user-agent header to extract browser name and version, operating system, device type, engine, and mobile detection as JSON on your device.
How to use this tool
1. Paste a User-Agent header value. 2. Review browser, OS, device, and engine fields. 3. Copy the JSON when logging client capabilities or writing UA-aware tests.
Worked example
Example: a Chrome on macOS UA parses to browser Chrome, OS macOS, and device desktop with engine Blink.
How it works
Paste a browser user-agent string to extract browser, version, operating system, device type, and engine details as structured JSON on your device.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data stays on your device and is not uploaded.
FAQ
Frequently asked questions
Is User-Agent Parser free?
Yes. It is free to use and you do not need to sign in or create an account.
Is my data private?
See the privacy note on this page. Many tools run on your device; some heavier file tools may use secure temporary processing when required.
Can I use User-Agent Parser on mobile?
Yes. Open this page on your phone or tablet, enter your inputs, and use the on-screen controls.
Related pages
- Browse all free online tools on Utilnivo
- Explore more developer tools on Utilnivo
- API Tester — Send HTTP requests from your browser and inspect responses.
- Query String Parser — Parse URL and query strings into JSON and a params table.
- JSON Formatter — Format, minify, and validate JSON with optional key sorting.
- HTTP Status Checker — Check the HTTP status code for a URL.
- JWT Decoder — Decode JWT header, payload, and expiry—including Bearer tokens—on your device.
- JSON Compare — Compare two JSON documents and instantly see added, removed, and changed values. JSON mode highlights changed keys with path hints.
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