What is my browser? Instantly detect your browser, version, and system information
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Your browser identifies itself through a "User Agent" string. This helps websites deliver compatible content and features. Different browsers may support different web technologies.
Your OS affects how websites render and perform. Some features like touch support, fonts, and color management vary between operating systems.
Your screen size determines how websites are displayed. Responsive designs adapt to different resolutions to provide optimal viewing experiences.
Features like cookies, JavaScript, and PDF support affect how websites function. Some websites may require specific capabilities to work properly.
| Browser | Engine | Platforms | Market Share | Best For |
|---|---|---|---|---|
| Chrome | Blink | All platforms | ~65% | General browsing, Google services |
| Firefox | Gecko | All platforms | ~5% | Privacy, customization |
| Safari | WebKit | Apple devices | ~18% | Apple ecosystem, battery life |
| Edge | Blink | Windows, macOS | ~5% | Windows integration, Microsoft services |
Websites use browser detection to deliver compatible code, optimize performance, and provide features that work with your specific browser capabilities. This ensures you get the best possible experience.
Yes, most browsers allow you to change or spoof your user agent through developer tools or extensions. However, this may cause websites to display incorrectly if they rely on accurate browser detection.
Your operating system (Windows, macOS, Android) is the foundation software that runs your device. Your browser (Chrome, Firefox, Safari) is an application that runs on top of your OS to browse the internet.
Modern browser detection is very accurate, but some browsers may intentionally identify as others for compatibility. Our tool uses multiple detection methods to ensure the most accurate results.
Browser detection is the process of identifying which web browser, version, and operating system a visitor is using. This information helps websites deliver optimized experiences and troubleshoot compatibility issues.
Browsers send a User-Agent header with every request, containing information about the browser, version, and operating system. This is the primary method of detection.
Modern websites often check for specific features rather than browser names. This ensures compatibility regardless of which browser is being used.
Newer browsers support Client Hints, providing more detailed information about device capabilities while preserving privacy.
| Browser | First Release | Latest Version | Notable Features |
|---|---|---|---|
| Chrome | 2008 | 120+ | Fast updates, V8 engine, Chrome Web Store |
| Firefox | 2004 | 120+ | Privacy focus, Firefox Monitor, containers |
| Safari | 2003 | 17+ | Energy efficient, iCloud sync, privacy reports |
| Edge | 2015 (EdgeHTML) 2020 (Chromium) | 120+ | Collections, vertical tabs, Bing integration |
Developers use browser detection to serve appropriate CSS, JavaScript, and HTML. Different browsers support different features and may require vendor prefixes or polyfills.
Website owners track browser usage to understand their audience and make informed decisions about which technologies to support.
When reporting bugs, knowing the exact browser version helps developers reproduce and fix issues more efficiently.
Some security measures use browser fingerprinting to detect suspicious activity or prevent fraud.
Browser detection is a form of browser fingerprinting. While this tool only shows you your own information, websites you visit may collect similar data. To protect your privacy, you can use private browsing modes, limit cookies, or use privacy-focused browsers like Firefox or Brave.