Browser User Agent Checker
Check your browser's user agent string and related information instantly.
Complete User Agent String
Your Browser's User Agent Explained
Every web browser sends a user agent string to websites you visit. This string identifies your browser type, version, and operating system. Websites use this information to serve optimized content and ensure compatibility with your specific browser configuration.
Your user agent is visible to every website you visit and is commonly used for analytics, feature detection, and content personalization. Understanding what your browser reveals helps you make informed decisions about privacy and compatibility.
What Your Browser Reveals
Your user agent contains your browser name and version, operating system and version, device type, and rendering engine. While this information helps websites serve better experiences, it can also be used for browser fingerprinting.
Browser Detection Uses
Websites use user agent data to: serve mobile-optimized layouts, enable browser-specific features, show compatibility warnings for outdated browsers, and track visitor demographics in analytics platforms.
Privacy Implications
User agents contribute to browser fingerprinting, which can track users across websites. Modern browsers are implementing user agent reduction to limit trackable information while maintaining necessary functionality.
Changing Your User Agent
Browser extensions allow you to modify your user agent for testing or privacy. Developer tools in most browsers also include options to emulate different devices and their user agents.