If WebUSB is supported, only the vendor/product information of a compatible USB device you explicitly allow is read. The browser cannot see all USB devices or Windows drivers.
Diagnostic
Tests mostly run in your browser. Microphone/camera data is not saved on the server.
Most used tests
Quickly access the tests visitors use most often.
How to use and interpret Bluetooth Test & Troubleshooter
What this test checks
Checks WebUSB support and access to a compatible USB device you explicitly allow.
Check WebUSB support and access to a compatible USB device you explicitly select.
How to interpret the result
First check whether the required browser API is available, then whether the device can be selected or accessed with permission.
Browser limitations
Lack of WebUSB or Web Bluetooth support is a browser limitation, not proof that the USB or Bluetooth hardware is defective.
Frequently asked questions
What does Bluetooth Test & Troubleshooter check?
Checks WebUSB support and access to a compatible USB device you explicitly allow.
If the browser cannot see the device, is the device broken?
Not necessarily. Browser support, permissions, pairing state and operating-system access can all block detection.
What should I do if the result looks bad?
Repeat the test under the same conditions, check the suggested next diagnostic and compare with another browser, connection or device where practical. Use the related guides for step-by-step troubleshooting.
Check Web Bluetooth support and whether a Bluetooth device you select is visible to the browser.
Checks the browser's Web Bluetooth support. If supported, it opens the device picker and confirms the Bluetooth device you choose is visible to the browser. It cannot silently read the Windows paired-device list.
Diagnostic
Tests mostly run in your browser. Microphone/camera data is not saved on the server.