User-Agent String Parser & Client Detector
Processed in your browser
Parse User-Agent strings to extract browser family, version, OS platform, device architecture, and rendering engine.
User-Agent String
Parsed Identification
Browser
Chrome
Operating System
macOS
Engine
Blink / WebKit
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Direct In-Browser Handoff
HTTP API & Protocol Diagnostics Suite
Chain this tool with complementary private browser utilities for a complete zero-server workflow:
Helpful Examples
Current Browser UA
Auto-detect active user-agent from navigator.
Auto-detectHow to Use the User-Agent String Parser & Client Detector
Inspect and parse HTTP User-Agent header strings. Auto-detects your current browser client or parses pasted UA strings to reveal browser version, operating system, hardware architecture, and rendering engine (Blink, Gecko, WebKit).
Privacy & Data Processing Notice
No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.
Frequently Asked Questions
Why do most modern User-Agents include 'Mozilla/5.0' and 'Safari'?
Historical browser compatibility wars caused browsers to spoof older browser strings to ensure web servers wouldn't block them or serve stripped-down pages.
Related Utilities
Frequently paired browser tools in Network & Internet Tools