Runs 100% in your browser. Nothing is uploaded.
Webcam Test
Check your camera, resolution, frame rate and lighting before your next call.
Options
Mirror preview
Show framing grid
The preview stays in this tab. A snapshot downloads to your computer and is not uploaded.
Idle
Waiting for the camera
Brightness
Resolution support
360p
720p
1080p
4K
Resolution
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Frame rate
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Aspect
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Facing
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More tests
What it measures
Preview
A local picture of the selected camera, with a mirror toggle for the way you are used to seeing yourself.
Resolution
The frame size the browser actually delivered, plus a pass or fail against 360p, 720p, 1080p, and 4K.
Frame rate
Frames per second measured from the stream, not the number a spec sheet promised.
Light
A simple brightness check so a dark room is called out before you join a call.
Questions
Is the snapshot uploaded?
No. The picture is captured in the browser and downloaded to your computer. devicecheckers does not receive the file.
The preview is black. What should I check?
Another app may already be using the camera, the lens may be covered, or permission may be denied. Close other camera apps and allow this site when the browser asks.