What your browser can do — a full capability report in one click
🔒 Everything is read locally from your browser. Nothing is uploaded or stored.
This page reads the capability APIs your browser exposes — screen geometry, hardware hints, the WebGL renderer string, media codec support and connectivity info — and turns them into a plain-English report. It's the fastest way to answer questions like "does my browser play AV1?", "how much RAM does this device report?" or "which GPU is rendering WebGL?" when troubleshooting a slow site or picking video quality.
Note that browsers deliberately round or hide some values for privacy: deviceMemory is capped and bucketed, hardwareConcurrency may report efficiency cores only on some laptops, and Firefox masks the WebGL renderer unless permitted. A missing battery card simply means the Battery API isn't available (Safari and Firefox have removed it).
The codec chips tell you which video formats a site can serve without transcoding — AV1 support means modern hardware decoding, while H.264-only devices will use more bandwidth for the same quality. A DPR above 1 means a high-density display, so UI is rendered at multiple physical pixels per CSS pixel. If WebRTC shows as unsupported, video-call sites and this suite's webcam test cannot work in that browser; enabling it is usually a flag or a more current browser version away.