Why is my Mac camera not working?

Almost always the app lacks camera permission, or another app is already using the camera. Allow the app under Privacy and Security and close other video apps.

How do I give an app camera access on Mac?

Open System Settings, Privacy and Security, Camera, and switch on the toggle for the app, then restart that app.

Why does my Mac say the camera is in use?

Only one app can use the camera at a time. Quit other video apps, and if it stays stuck, restart the Mac.

Webcam Not Working on Mac? How to Fix It

Quick answer: On a Mac, a camera that will not work is almost always a permission the app lacks, or another app already using it. Allow the app under Privacy and Security, close other video apps, and restart.

Confirm the camera works: open the webcam test in your browser.

Grant camera permission

Open System Settings, then Privacy and Security, then Camera, and turn on the toggle for the app you are using. Quit and reopen the app afterwards.

Close other apps using it

macOS lets only one app use the camera at a time. Quit Zoom, FaceTime, Photo Booth and any browser tabs that may hold it, then try again.

Reset if it stays stuck

Restart the Mac to release a stuck camera. If a green light never appears, the camera is not starting — a restart clears most software locks. For a black preview specifically, see a webcam showing a black screen.

Confirm it works

Re-run the webcam test (our webcam test walkthrough shows what to look for), then rejoin your call.