Device tools
See what your browser knows about your screen, device and supported web features.
- Device InformationSee what your browser knows about your device, screen, language and time zone.
- Screen Resolution TestSee your screen resolution, browser viewport and device pixel ratio, and how they differ.
- DPI / Pixel Density TestUnderstand device pixel ratio, CSS pixels and physical pixels, and what the browser cannot know.
- Browser Capability TestA checklist of the web features your browser supports, from canvas to WebRTC.
- WebGL TestCheck whether WebGL works, see the renderer, and watch a simple animation with a frame counter.
Before you start
- Values come from browser APIs. Some are rounded or hidden on purpose for privacy.
- Screen resolution, browser viewport and physical pixels are three different sizes; the pages explain how they relate.
- Browser zoom changes several of these numbers. Reset it to 100 percent for a clean reading.