See what your browser actually receives.

Open the selected camera locally, verify framing, and compare actual capture resolution with the quality you expected.

Camera capture bench

Standby
LOCAL CAMERA PREVIEWOFF
CAM

Preview appears after permission is granted

Capture
Measured frame rate
Aspect ratio
Diagnostic result

Ready for a camera sample

Start the camera, wait for the frame-rate reading to stabilize, then check framing, focus, exposure, and motion.

Resolution comes from the active browser track. Frame rate is measured from presented video frames when supported; otherwise MeterSee labels the track's reported value. Lighting, USB bandwidth, and simultaneous apps may reduce both.

Read the capture, not the box specification.

A 4K camera can still arrive in the browser at 720p when another app, USB bandwidth, or browser constraints intervene.

Observed signalLikely layerNext check
Black preview with permissionCamera busy or privacy shutter

Close meeting apps, open the physical shutter, and retry the named device.

Resolution below expectedUSB, browser, or shared camera

Connect directly, close other camera apps, and compare another browser.

Preview stuttersLighting, CPU load, or connection

Improve lighting and watch the measured frame rate after closing heavy tabs.