User Agent (UA) Parser Tool

My User Agent Information

Parse Another User Agent

Tool Description

User Agent A text string sent by browsers to servers, containing device, OS, browser version, and rendering engine details. It acts as the browser's 'identity card'.

Manual UA parsing is complex and error-prone. Powered by `ua-parser-js`, this tool accurately structures UA data.

Core Features:

  • Auto-Detection: Automatically detects and parses your browser's current UA.
  • Arbitrary Parsing: Parse UA strings from logs, user reports, or other sources.
  • Structured Data: Breaks down UA into OS, device, browser, engine, and CPU architecture.

Common Usage Scenarios:

  • Web Analytics: Analyzes visitor browser/device distribution to optimize development and testing strategies.
  • Content Adaptation: Servers can deliver device-specific content (e.g., mobile/desktop) based on UA.
  • Bug Tracking: Including user UA information with bug reports helps developers quickly locate and reproduce issues.

Important Notice

UA strings can be easily spoofed by users or plugins. **Should not** be used for critical security validation—only for statistics and compatibility.