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User Agent Parser

Parse browser, OS, and device from user-agent strings.

User Agent Parser breaks a raw user-agent string into browser, engine, OS, and device details. It is useful for analytics QA, support diagnostics, and debugging client-specific behavior. Instead of manually reading long UA strings, you get structured fields that are easier to compare across requests. This helps confirm what environment a request came from when triaging rendering or compatibility issues.

User Agent Input

Parsed Output

Browser: Unknown

OS: Unknown

Device: Unknown

Mobile: No

How to use this tool

  1. Paste the full user-agent string from logs or request headers.
  2. Run the parser to extract browser, OS, and device metadata.
  3. Use parsed values to reproduce client-specific issues or update compatibility rules.

Web analytics tools

Promote analytics suites, RUM platforms, and frontend observability products.

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