Camera Tests

Preview your camera, pick a device, mirror or rotate, and read the real track settings — resolution, aspect ratio and observed frame rate.

Request 480p through 4K in turn and compare requested versus actual negotiated resolution for your camera.

Estimate your camera’s delivered frame rate with requestVideoFrameCallback, showing average, minimum and the reported rate.

Record a short video clip locally with optional microphone audio, play it back and download it. Nothing is uploaded.

See whether camera and microphone are supported and what permission state your browser reports — without forcing a prompt.

Take a local snapshot from your camera, view its resolution and download it. Nothing is uploaded.

Adjust zoom, torch and focus where your camera exposes them, applied safely with applyConstraints. No dead controls.

See a live brightness histogram with crushed-shadow and blown-highlight indicators. No AI, no face analysis, no recording.