hardware test
WebUSB Device Test
Check whether a supported browser can request direct permission to a compatible USB device.
No accountLocal where possibleRetest anytime
Advanced hardware access
This advanced test only works in browsers that expose the required hardware API.
DeviceOK requests access only after you click. Advanced browser hardware APIs are permission-gated and are not universally supported.
Private by design
The browser chooser controls access; DeviceOK does not upload device data.
Use the result as evidence, not a guess.
This test checks
- WebUSB support
- USB device selection
- Browser-exposed USB identity
How to read it
Many ordinary USB devices are claimed by operating-system drivers and are not available through WebUSB.
Not appearing in WebUSB does not mean the USB hardware is broken.