Quick Answer
If Zoom video is blank, test the webcam outside Zoom first. Then check Zoom's selected camera and any app using the camera in the background.
Step-by-Step
- Run the Webcam Test to confirm video works outside Zoom.
- Open Zoom video settings and choose the correct camera.
- Close other apps that may be using the webcam.
- Check camera privacy permissions for Zoom or your browser.
- Restart Zoom after changing camera settings.
Recommended Workflow
Open the most relevant calculator or utility first, enter a realistic starting point, then use the supporting tools to check assumptions, clean inputs, or prepare the final output.
FAQs
Why is Zoom showing a black screen?
The camera may be blocked, used by another app, covered, or not selected in Zoom settings.
Should I test camera before a call?
Yes. A quick webcam test prevents last-minute meeting problems.