About this test
Many hardware problems are really browser limitations. The browser check tests support for over 40 features, including WebGL and WebGPU, camera and microphone access, video codecs such as H.264, HEVC, VP9 and AV1, and device APIs for gamepads, USB, HID, serial and Bluetooth. Copy the report for support teams.
How to use this test
- Open the page; the check runs instantly.
- Look for features marked unsupported that an app needs.
- Update the browser or switch to another one and compare.
Frequently asked questions
Why does AV1 or HEVC show as unsupported?
Codec support depends on your browser, operating system and graphics hardware. Some need a hardware decoder or an extension.
Is a higher score better?
Usually. It means more web apps will work, but not every feature is needed for everyday browsing.