User Agent Parser – Extract Browser & Device Info

Parse user agent strings to see browser, OS, and device. Useful for analytics. Runs in your browser.

About User Agent Parser

The User Agent Parser is an essential tool for web developers working with browser detection and analytics. It extracts detailed information from user agent strings including browser, operating system, device type, and rendering engine. Perfect for debugging, analytics, and understanding client environments.

Use Cases:

  • Debugging browser-specific issues in web applications
  • Understanding client environment for analytics
  • Testing user agent detection logic
  • Learning how browsers identify themselves
  • Verifying user agent strings from logs
  • Detecting device types and capabilities

Key Features:

  • Browser name and version detection
  • Operating system identification
  • Device type detection (mobile/tablet/desktop)
  • Rendering engine extraction
  • Use current browser's user agent
  • 100% browser-based - no server processing

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Frequently Asked Questions

What is a user agent string?

A user agent string is a text string that browsers send to websites to identify themselves. It contains information about the browser, operating system, device type, and rendering engine being used.

How do I parse a user agent?

Paste a user agent string into the input field, and the tool will automatically parse it to extract browser name, version, operating system, device type, and rendering engine information.

Can I use my current browser's user agent?

Yes! Click the 'Use Current Browser' button to automatically fill in your current browser's user agent string. This is useful for testing or understanding what information your browser sends to websites.

What information can be extracted from a user agent?

The parser extracts browser name and version, operating system and version, device type (desktop/mobile/tablet), and rendering engine information. However, user agents can be spoofed, so don't rely on them for security purposes.

Is the user agent parser free to use?

Yes! Our user agent parser is 100% free with no registration required, no usage limits, and no hidden fees. You can parse as many user agents as you need for your development work.

Are user agents stored or tracked?

No, all user agent parsing happens locally in your browser. We don't store, save, or have access to any user agent strings you parse. Your privacy is completely protected.

What browsers are supported?

The parser supports all major browsers including Chrome, Firefox, Safari, Edge, Opera, and Internet Explorer. It detects browser versions and rendering engines accurately.

What operating systems are detected?

The tool detects Windows, macOS, Linux, Android, and iOS operating systems. It also identifies specific OS versions when available in the user agent string.

Can user agents be spoofed?

Yes, user agents can be spoofed or modified by users or browser extensions. Don't rely on user agent strings for security purposes. They're useful for analytics and feature detection but not for authentication.

How do I detect mobile vs desktop?

The parser automatically detects device type (Mobile, Tablet, or Desktop) based on the user agent string. Mobile devices typically include 'Mobile' or device-specific identifiers in their user agent.

What rendering engines are detected?

The tool detects major rendering engines including Gecko (Firefox), WebKit (Safari), Blink (Chrome/Edge), and Trident (Internet Explorer). Engine version information is extracted when available.