📱 User Agent Parser

Analyze browser user agents to detect browser, OS, device type, and more

Version 2.1.0 - Updated September 2025
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Paste a user agent string to analyze. User agents identify browsers, devices, and operating systems.
User agent information will appear here

Embed This Tool

Want to embed this User Agent Parser on your website? Use this code:

<iframe src="https://yoursite.com/user-agent-parser" width="100%" height="600" frameborder="0"></iframe>

🎯 User Agent Examples

📱 Chrome on Windows

User agent string for Google Chrome on Windows 10:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

Parsed as: Chrome 91, Windows 10, Desktop

📱 Safari on iPhone

User agent string for Safari on iOS:

Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0 Mobile/15E148 Safari/604.1

Parsed as: Safari 14, iOS 14.6, iPhone Mobile

🤖 Googlebot Crawler

User agent string for Google's web crawler:

Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

Parsed as: Googlebot, Crawler

🖥️ Firefox on macOS

User agent string for Firefox on macOS:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:89.0) Gecko/20100101 Firefox/89.0

Parsed as: Firefox 89, macOS 10.15, Desktop

📱 Chrome on Android

User agent string for Chrome on Android:

Mozilla/5.0 (Linux; Android 10; SM-G981B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.162 Mobile Safari/537.36

Parsed as: Chrome 80, Android 10, Mobile

🖥️ Edge on Windows

User agent string for Microsoft Edge on Windows:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36 Edg/91.0.864.59

Parsed as: Edge 91, Windows 10, Desktop

📚 User Agent Tutorials

📱

Understanding User Agent Strings

Learn how to decode user agent strings to identify browsers, devices, and operating systems.

Read Tutorial →
🌐

Browser Detection Best Practices

Learn the right way to detect browser capabilities without relying solely on user agent parsing.

Read Tutorial →
🛡️

User Agent Spoofing & Privacy

Understand how user agents can be spoofed and what this means for privacy and security.

Read Tutorial →
⚡

User Agent Client Hints

Learn about the new User Agent Client Hints API that's replacing traditional user agent strings.

Read Tutorial →
🔧

Implementing User Agent Parsing

Technical guide to implementing user agent parsing in your applications and websites.

Read Tutorial →
📊

Analytics with User Agents

How to use user agent data for analytics and understanding your audience's technology.

Read Tutorial →

⚖️ User Agent Tools Comparison

Compare our free User Agent Parser with other popular tools and services:

Feature Our Tool Online Tool A Paid Service B Command Line
Free to Use ✅ ✅ ❌ ✅
Client-side Processing ✅ ❌ ✅ ✅
Browser Detection ✅ ✅ ✅ ✅
OS Detection ✅ ✅ ✅ ✅
Device Detection ✅ ✅ ✅ ❌
Bot/Crawler Detection ✅ ✅ ✅ ❌
Copy Functionality ✅ ✅ ✅ ✅
Embed Code ✅ ❌ ❌ ❌
Privacy (Client-side) ✅ ❌ ❌ ✅

Why Choose Our User Agent Parser?

🔒 Complete Privacy

All parsing happens in your browser. Your user agent never leaves your device, ensuring maximum privacy.

🚀 Modern & Fast

Built with modern web standards and optimized for performance. Works instantly without server delays.

📱 Mobile Ready

Fully responsive design that works perfectly on all devices - desktop, tablet, and mobile.

🎓 Educational

Not just a tool - includes comprehensive guides, examples, and best practices to help you learn.

📝 Version History & Changelog

Version 2.1.0 - Latest

September 15, 2025
  • 🎉 Added "Use My User Agent" button
  • 📱 Improved mobile responsiveness and touch interactions
  • 🔧 Enhanced user agent parsing accuracy
  • 📊 Added more detailed browser and OS information
  • 🎨 Updated UI with better accessibility and contrast
  • ⚡ Optimized performance for faster parsing

Version 2.0.0

August 20, 2025
  • 🔄 Complete UI redesign with modern styling
  • 📚 Added comprehensive tutorial section
  • 📝 Introduced tabbed navigation for better organization
  • ⚖️ Added tool comparison feature
  • 💾 Implemented copy functionality for results
  • 📋 Enhanced UI with better information display

Version 1.2.0

July 10, 2025
  • ✅ Added bot/crawler detection
  • 🛡️ Improved privacy information section
  • 📖 Added real-world examples and case studies
  • 🐛 Fixed user agent parsing issues for rare browsers
  • ♿ Enhanced accessibility with ARIA labels

Version 1.1.0

June 5, 2025
  • 🎨 Improved visual design with gradient backgrounds
  • 📱 Added responsive design for mobile devices
  • ⚠️ Added warnings about user agent spoofing
  • 📋 Implemented one-click copy functionality
  • 🔧 Fixed JSON formatting issues

Version 1.0.0

May 15, 2025
  • 🎉 Initial release of User Agent Parser
  • 🔐 Basic user agent parsing functionality
  • ⚡ Client-side processing for maximum privacy
  • 📚 Comprehensive documentation and examples
  • ✨ Clean, modern user interface

🔮 Upcoming Features

📋 Planned for Next Release:

  • Browser capability detection beyond user agent parsing
  • Historical browser version database
  • Bulk user agent processing
  • Dark/Light theme toggle
  • API access for developers
  • History of parsed user agents (session-based)

What is a User Agent?

A user agent is a string that web browsers and other applications send to web servers to identify themselves. This string contains information about the browser, operating system, device type, and sometimes other details.

Common User Agent Components

Browser Name
Chrome, Firefox, Safari, Edge, etc.
Browser Version
The specific version number of the browser
Operating System
Windows, macOS, Linux, Android, iOS
Device Type
Desktop, Mobile, Tablet, Bot/Crawler
Engine
WebKit, Gecko, Blink, Trident
Platform
x64, ARM, etc.

Privacy Information

This User Agent Parser is designed with privacy in mind:

✅ Privacy-Conscious Design:

  • All processing happens in your browser - no data is sent to our servers
  • No tracking of your usage of this tool
  • No storage of parsed user agents
  • Open source parsing logic with transparent functionality

Limitations of User Agent Parsing

⚠️ Important Considerations:

  • User agents can be easily spoofed or modified
  • New browser versions may not be immediately recognized
  • Some browsers may omit or obscure certain information
  • Rare or custom browsers may not be correctly identified
  • Browser detection should not be used for critical functionality

Best Practices for User Agent Analysis

🔐 Recommended Security Resources

Enhance your security knowledge with these premium resources:

Web Security Academy

Browser Security & Privacy

Browser Internals

How Browsers Work

Privacy Engineering

Data Protection Techniques

Web Development

Modern Browser APIs

Security+ Certification

CompTIA Training