Test your browser's support for modern web technologies with our comprehensive feature detection tool. Instantly check compatibility for WebGL, WebRTC, Service Workers, IndexedDB, Web Audio, WebAssembly, and 50+ other web APIs. Essential for web developers, QA testers, and anyone verifying browser capabilities.
Browser feature support testing determines which modern web APIs, technologies, and standards your browser can utilize. Different browsers implement features at different rates, with some supporting cutting-edge APIs while others lag behind. Testing feature support helps developers ensure compatibility, enables progressive enhancement strategies, and identifies browser limitations. This tool checks over 50 critical web platform features across seven categories.
Feature support depends on browser version, implementation priorities, and platform capabilities. Older browsers lack modern features, some browsers prioritize certain APIs over others, and platform limitations affect availability. Update your browser to the latest version for maximum feature support. Some features require specific hardware (like WebXR needing VR headsets).
If this tool shows many unsupported features, especially fundamental ones like Fetch API or Promises, you should update immediately. Outdated browsers have security vulnerabilities, missing modern features, and compatibility issues. Most browsers auto-update, but check manually in settings. Using current browser versions ensures security, performance, and compatibility.
Polyfills can add missing APIs to older browsers, though with performance costs. However, some features like WebGL or WebRTC require browser engine support and can't be polyfilled. For missing features, provide fallback experiences or encourage users to update browsers. Consider whether supporting very old browsers is worth development time.