Start with browser-visible evidence
Browser Permission CheckCheck whether common browser permissions such as camera, microphone, location, and notifications are granted, denied, or still waiting for a decision.
→Microphone TestCheck whether your browser can detect your microphone and receive live audio.
→Webcam TestOpen your webcam locally to verify that the browser can access and display a live camera stream.
→Gamepad Controller TestTest browser-detected controller buttons and analog axes.
→WebHID Device TestRequest a compatible HID device in browsers that support WebHID and display its browser-exposed product and vendor identifiers.
→WebUSB Device TestRequest a compatible USB device through WebUSB and display the browser-exposed manufacturer, product, vendor, and product IDs.
→Web Serial Port TestChoose a serial port, open it at a safe test baud rate, and close it to verify browser-level serial access.
→Strong use cases
- Windows camera/microphone testing
- Gamepad and input checks
- Chromium hardware capability tests where the device/API is supported
Important limitations
- Windows privacy settings can block camera/microphone even when the Edge site permission is allowed
- Enterprise policies can override ordinary user settings
- Hardware API availability still varies by device and Edge version
If camera or microphone access is blocked
- 1
Open Edge Settings and review Site permissions for the DeviceOK site.
- 2
Check Camera and Microphone permission plus Windows Privacy & security settings.
- 3
Refresh the page after changing a site permission.