User Agent Parser

Free User Agent parser. Parse any browser user agent string to see browser, OS, device, and engine details. All processing is local.

User Agent String
Parsed Info

Enter a user agent string or click "Load Sample" to see your current browser info.

Common User Agents

Chrome on Windows:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Safari on macOS:

Mozilla/5.0 (Macintosh; Intel Mac OS X 14_0) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15

Understanding User Agents

A User Agent string is sent by your browser with every HTTP request. It identifies the browser, operating system, rendering engine, and device type. Websites use it for analytics, content negotiation, and device-specific optimizations.

User Agent strings follow a semi-standard format but can be complex. Most modern browsers include "Mozilla/5.0" for historical compatibility reasons. The actual browser is identified by keywords like "Chrome", "Safari", "Firefox", or "Edg".

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User Agent Parsing

Decode browser, OS, and device from any UA string.
Guide

User Agent Parsing

Decode browser, OS, and device from any UA string.