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Webcam Test
Check your webcam works, its resolution and frame rate. Nothing is recorded.
Free tools that run in your browser. Nothing you type, open or create is uploaded to NerdBible or anyone else.
Press Start camera and allow the camera when your browser asks.
- Camera
- Resolution
- Frame rate the camera reports
- Frame rate measured
- Aspect ratio
Your still
Only the camera is requested, never the microphone. The picture stays on your device: nothing is recorded, stored or uploaded, and the camera switches off when you press Stop or leave the page.
How to use it
- Press Start camera and allow the camera when your browser asks.
- Check the live picture, the resolution and the frame rate. If you have several cameras, pick one from the list; to see the highest resolution, choose it under Ask for.
- Press Take a still to save a picture as a PNG file, and Stop when you are done.
Questions
Why is my webcam not working here?
The usual causes are a blocked permission, another app such as a video call already using the camera, or a privacy switch or shutter on the laptop. The message under the buttons says which one the browser reported.
Why is the frame rate lower than the camera says?
Cameras lower their frame rate in dim light to collect more light per frame. Better lighting usually brings it back up. A busy computer or a USB hub can also slow it.
Why is the picture mirrored?
A mirrored preview feels natural, like looking in a mirror, and most video call apps show you this way. Other people see you the right way round. Press Mirror to switch it off.
Is my video sent anywhere?
No. The picture goes from the camera to this page and nowhere else. Stills are made in your browser and saved straight to your device.
About this tool
About the webcam test
Before an interview or an important call, it helps to know your camera works and how you look. Press Start camera, allow access when your browser asks, and the live picture appears with its resolution and frame rate.
What you can check
- That it works at all, and which camera is in use if you have several. Pick another from the list.
- Resolution: choose a higher one under Ask for to see the most the camera can deliver.
- Frame rate: how smooth the picture is.
- Framing and light, so you can adjust before others see you.
Press Take a still to save a picture as a PNG file, and Mirror to switch the mirrored preview off. Mirroring feels natural, like looking in a mirror; other people on a call see you the right way round.
Troubleshooting
If the camera does not start, the usual causes are a blocked permission, another app such as a video call already using the camera, or a privacy switch or shutter on the laptop. The message under the buttons says which one the browser reported.
A frame rate lower than the camera promises is usually down to dim light: cameras slow down to gather more light per frame. Better lighting usually brings it back up.
Only the camera is requested, never the microphone. The picture stays on your device, nothing is recorded or uploaded, and the camera switches off when you press Stop or leave.
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