What does User Agent Parser do?
Analyze user agent strings for debugging and analytics.
Analyze user agent strings for debugging and analytics.
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Analyze user agent strings for debugging and analytics. Use it in your browser without uploading files for typical workflows.
Free user agent parser — paste any UA string and instantly identify the browser, version, operating system, device type, and rendering engine. No signup required. Runs locally in your browser when supported—no upload required for normal use. Designed for quick everyday tasks with clear, copy-friendly output.
Concise answers for common searches — definitions, steps, and comparisons.
Analyze user agent strings for debugging and analytics.
User Agent Parser (/user-agent-parser) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.
Load User Agent Parser on EverydayTools—no account required.
Type, paste, or upload depending on what the tool accepts.
Results update in your browser for typical use cases.
Copy the output or use download/export when available.
Common real-world scenarios where this tool saves time.
Analyze user agent strings for debugging and analytics.
Use when you want results without uploading files—local browser processing when the tool supports it.
Open User Agent Parser in any modern browser for quick checks with copy-friendly output.
Step-by-step chains that connect related tools for common tasks.
How this EverydayTools page compares for typical use.
| Aspect | EverydayTools | Typical alternative |
|---|---|---|
| Cost | Free | Paid apps or trials |
| Privacy | Browser-local when supported | Often requires cloud upload |
| Signup | Not required | Often required |
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A user agent string is a text identifier sent by browsers and apps in HTTP request headers. It identifies the browser name, version, operating system, and device type to the web server.
Open What Is My Browser? (/browser-info) for your live user agent, or check browser developer tools under Network → request headers → User-Agent. You can also paste any UA string into this parser.
They evolved for historical compatibility — each browser added tokens from earlier browsers to ensure servers would serve them modern content. The result is a string with many overlapping identifiers.
Yes. Paste user agent strings from server logs or API requests to identify what browsers or bots are hitting your endpoints.
Analyze user agent strings for debugging and analytics.
User Agent Parser keeps typical inputs on your device—nothing is uploaded to EverydayTools servers for core calculations.
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Reviewed by EverydayTools Editorial Team on 2026-05-28.
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The User Agent Parser is an essential tool for web developers working with browser detection and analytics. It extracts detailed information from user agent strings including browser, operating system, device type, and rendering engine. Perfect for debugging, analytics, and understanding client environments.