Interactive diagnostic

Camera test

Preview your camera locally and verify that video reaches the browser. Permission is requested only when you start.

Processed locally in this browser

Permission-based test

Preview your camera locally

Permission is requested only after you start. The live image stays between your camera and this page; DeviceTriage does not record, capture, or upload it.

Camera is offNo video is being captured

Browser-exposed stream: Camera details become available after permission is granted.
Privacy: Live preview only — no recording

Only the measurement and review summary stays in this browser for 7 days for Device Check and JSON reports. No photos, video, audio or screenshots are stored. Denied permission and unfinished tests are not faults. Visual and listening reviews are labeled as user reports.

Test guide

What this test proves—and what it cannot

The camera test requests a live browser preview so you can verify permission, device selection, picture continuity, and browser-exposed stream settings. Video remains in the page, is not recorded, and stops when you finish or leave.

Last reviewed: 2026-09-01

Signals measured

Whether camera permission can be requested in this context
Whether a selected video stream starts and remains active
Browser-exposed resolution, frame-rate, facing-mode, and device label when available
User-observed focus, brightness, color, framing, and freezes

How the test works

Access begins only after the user presses the start control.
The browser displays its own permission decision; DeviceTriage cannot bypass it.
The MediaStream is attached directly to a local video element.
Tracks are stopped when the test ends or the component leaves the page.

Interpreting the results

SignalWhat it meansNext step

Live preview worksThis browser received video from the selected camera.If another site fails, inspect that site's permission and camera selection.

Permission not grantedThe browser did not provide a stream; hardware state is unknown.Review site and operating-system privacy permissions, then retry intentionally.

Black or frozen previewA stream may exist without a usable picture.Check shutter, competing apps, lighting, cable, and the OS camera app.

Measurement limits

A browser cannot inspect the sensor, cable electronics, or physical shutter state.
Reported settings can be negotiated values rather than the camera's maximum specification.
Permission denial is not a failed-camera diagnosis.

Missing or privacy-reduced detail is not scored as a fault by itself.

Questions about this test

Does DeviceTriage upload or save camera video?

No. The preview is connected locally to the browser's live MediaStream. The test does not record, encode, or upload it.

Why is the resolution lower than the camera specification?

The browser negotiates a stream based on requested constraints, available modes, performance, and privacy behavior. The active setting is not a complete hardware specification.