Mobile User-Agent Parser

Paste any user-agent string (or auto-detect yours) to identify device type, operating system, browser, and rendering engine.

User-Agent String

Sample UAs

Paste a UA string and click Parse, or auto-detect yours.

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Summary

Paste any user-agent string (or auto-detect yours) to identify device type, operating system, browser, and rendering engine.

How it works

  1. Auto-detect your current browser UA or paste any UA string into the input field.
  2. Click "Parse" (or press Enter) to trigger the client-side parser.
  3. The tool runs a series of regex patterns to identify device type, OS, browser, and engine.
  4. Results appear instantly in a structured card layout with confidence indicators.
  5. Copy individual fields or the full parsed JSON for use in your code.

Use cases

  • Debug mobile-specific issues by checking exactly what your device reports.
  • Test UA string parsing logic for web apps and APIs.
  • Verify bot vs. human traffic classification during development.
  • Identify legacy browsers or OS versions in support tickets.
  • Cross-check UA strings from server logs.
  • Build UA allowlists or blocklists with accurate detection data.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu