User Agent (UA) Parser Tool
My User Agent Information
Parse Another User Agent
Parse Results
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.