Utilizist
Developer

User Agent Parser

Extract browser, OS, and device info from a User Agent string.

Inputs

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User Agent Parser

A tool to decode "User Agent" strings into readable device, browser, and operating system information.

What is a User Agent?

A User Agent (UA) is a text string that your browser sends to web servers whenever you visit a site. It serves as a digital ID, identifying which browser, version, and OS you are using.

Use Cases

  • Analytics: Understanding which devices visit your site.
  • Debugging: Troubleshooting platform-specific errors.
  • Compatibility: Ensuring your web app works across different browser engines.

Example String

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

The parser breaks this down to tell you exactly that the user is on Chrome running on macOS.