How this test works
Uses getUserMedia and MediaStreamTrack settings after explicit permission.
Browser-reportedPrecision label
P0 browser diagnostic
Webcam Test
Open your camera locally and inspect the browser-reported stream settings.
Browser-reportedBrowser-nativeLocal processing
CA
Interactive test
Webcam diagnostic
◆Stays on deviceNo raw hardware upload
Camera preview appears here
Resolution —Frame rate —Facing —
Your data flow
The video preview stays inside this browser and is never sent to DeviceDoctor.
Read the privacy overview →What this cannot prove
- Stream resolution can differ from the sensor maximum.
- Lighting, power state and drivers can limit frame rate.
Fix common problems
- Open the physical privacy shutter.
- Close other apps using the camera.
- Check OS and browser camera permissions.