Your Mac's camera is controlled through System Settings, not a separate app

Your Mac's built-in camera (called the FaceTime camera on most models) is off by default for privacy. To use it, you go to System Settings, find the Camera section, and turn it on for the apps that need it. The camera itself doesn't have an on/off switch — instead, macOS controls which programs can access it.

The process takes about two minutes and works the same way on recent versions of macOS (Monterey, Ventura, Sonoma, and Sequoia). If you're on an older Mac running Big Sur or earlier, the steps are slightly different, but the idea is the same.

Key Takeaways

  • Open System Settings, go to Privacy & Security, then Camera to see which apps have permission to use your camera.
  • Toggle the switch next to an app's name to turn camera access on or off for that specific program.
  • If an app doesn't appear in the Camera list, it either doesn't need camera access or hasn't asked for permission yet.
  • You can test your camera works by opening FaceTime or Zoom and checking that you see your own video feed.

Opening System Settings and finding the Camera section

Click the Apple menu in the top-left corner of your screen, then select System Settings. On older Macs, this was called System Preferences, but the location is the same.

Once System Settings opens, look for Privacy & Security in the left sidebar. Click it. Then scroll down in the right panel until you see Camera — it's usually near the bottom, below Microphone and Bluetooth.

If you don't see Camera in the list, your Mac either doesn't have a built-in camera or macOS doesn't recognize it. Most MacBook Air, MacBook Pro, Mac mini, and iMac models from 2016 onward have cameras, but some older or external setups don't.

Turning on camera access for specific apps

When you click Camera, you'll see a list of apps that have asked for permission to use it. Next to each app name is a toggle switch. If the switch is gray and off, that app cannot access your camera. If it's green and on, the app can use it.

To let an app use your camera, click the toggle next to its name. To block an app, click the toggle again. You can turn camera access on and off for different apps independently — for example, you might allow FaceTime but block Zoom.

If an app you want to use isn't listed, it may not have asked for permission yet. Open that app and try to start a video call or take a photo. macOS will prompt you to allow camera access, and then the app will appear in this list.

Testing your camera to make sure it works

The easiest way to test your camera is to open FaceTime. Click the Launchpad icon in your dock (it looks like a grid of dots), search for FaceTime, and open it. You should see your own face in the preview window. If you see a black screen or a message saying the camera is not available, the camera may not be turned on for FaceTime.

Go back to System Settings > Privacy & Security > Camera and make sure the toggle next to FaceTime is green and on. Then close and reopen FaceTime. If you still see a black screen, try restarting your Mac — sometimes the camera needs a fresh start.

Another way to test is to open Photo Booth, which is built into every Mac. It will show you a live preview of your camera feed. If Photo Booth shows your video but FaceTime doesn't, the problem is with FaceTime's settings, not your camera.

What to do if your camera still isn't working

If you've turned on camera access in System Settings but still see a black screen or "camera not available" message, try these steps in order: First, restart your Mac completely. Second, check that no other app is using the camera — only one program can access it at a time, so close video apps you're not using. Third, unplug any external USB devices and try again, in case a USB camera or hub is conflicting.

If none of that works, your camera hardware may need service. Before you contact Apple Support, check whether your Mac is under warranty or covered by AppleCare. You can find this information by clicking the Apple menu, selecting About This Mac, and then System Report — look for the warranty status.

Camera privacy and what you should know

macOS shows a green light next to your camera whenever any app is using it. This light is hardware-based and cannot be disabled by software, so you can always see when your camera is active. If you see the light turn on when you're not expecting it, check System Settings to see which app is using the camera.

You can also cover your camera with a piece of tape or a camera cover if you want a physical barrier. Many people do this as an extra privacy measure, even though the software controls in macOS are reliable.

If you're concerned about an app's access to your camera, you can revoke permission at any time by toggling it off in System Settings. The app will not be able to use your camera until you turn it back on.

Frequently Asked Questions

Can I turn off my camera completely so no app can use it?

Yes. Go to System Settings > Privacy & Security > Camera and toggle off every app listed. You can also toggle off the Camera setting itself at the top of the list, which disables camera access for all programs at once. The camera will remain off until you turn it back on.

Why does an app keep asking for camera permission?

This usually means you clicked "Don't Allow" the first time the app asked. To fix it, go to System Settings > Privacy & Security > Camera, find the app in the list, and toggle it on. The app will stop asking once you've given permission.

Is the green light next to my camera always accurate?

Yes. The light is controlled by hardware, not software, so it cannot be faked or disabled. If you see the light, something is using your camera. If you don't recognize what's using it, check System Settings or restart your Mac to stop all camera access.

Can I use an external USB camera instead of the built-in one?

Yes. Plug the USB camera into your Mac, and most apps will automatically detect it. You may need to go into the app's settings to choose the external camera over the built-in one. System Settings doesn't let you pick which camera to use — that's controlled by each app.

What if my Mac doesn't have a camera?

Some older Macs and Mac minis don't have built-in cameras. If yours doesn't, you can buy an external USB webcam and plug it in. Most modern USB cameras work with Mac without needing extra software — just plug it in and open an app that uses video.