system
Webcam test online — camera preview
Preview your camera in the browser — local only, no upload.
Start to preview your camera. Video is not uploaded.
Browser-only diagnostics. Grant permissions when the browser asks. Stop mic/camera when finished.
Camera stays on your device. Preview stops when you leave or stop the test.
Solutions that can help in your case
Other tools
Peripherals Test
Test keyboard, mouse, microphone, and webcam in the browser.
Microphone Test
Check your mic level in the browser — audio never leaves your device.
Keyboard Tester
Test every key online — live key and code display in your browser.
Mouse Tester
Test left, right, middle click and scroll wheel online.
How the webcam test works
With permission we open a local camera preview. Frames stay on your device — no upload.
Stop the stream before switching apps that need the camera.
How to use
Allow camera: Accept prompt.
Preview: Confirm image.
Stop: Release for other apps.
Troubleshoot: Privacy settings if black.
Camera black on Zoom?
Another app holds the camera exclusive, or the wrong device is selected.
Start preview here to confirm the hardware works.
Practical tips
- Use HTTPS and allow permissions only when needed.
- Close other tabs that hold the device exclusive.
- Try another browser if the API is blocked.
- Share the link with support if a key or button fails.
- Close other apps using the camera.
- Check OS privacy toggles for camera.
Local preview
Video element plays the MediaStream only in-page.
Privacy
Tracks stop when you leave or hit stop.
When to upgrade gear or apps
If hardware or workflow keeps failing, a better peripheral or writing app saves time.