Test your webcam in your operating system's built-in camera app first

The fastest way to check if your webcam works is to open the camera app that came with your computer. On Windows, search for "Camera" in the taskbar and click the app. On Mac, open Launchpad and search for "Photo Booth" or use the FaceTime app. On Linux, open Cheese or Snapshot depending on your distribution.

When you open the app, you should see a live video feed of yourself within 2 to 3 seconds. If you see your face or the room behind you, your webcam is working. If the screen stays black or shows "No camera found," your webcam is either disconnected, disabled, or not recognized by your system.

Take a test photo or video in the app to confirm the camera captures images correctly. This tells you the webcam is not just lighting up—it is actually recording what it sees.

Key Takeaways

  • Your operating system's built-in camera app (Camera on Windows, Photo Booth on Mac) is the fastest way to test whether your webcam works at all.
  • A working webcam shows a live video feed within 2 to 3 seconds of opening the app; a black screen usually means the camera is disabled or not recognized.
  • If the built-in app works but video calls do not, the problem is usually a permission setting in your browser or video call software, not the hardware.
  • Restarting your computer fixes most webcam problems because it resets the camera driver and clears temporary software conflicts.
  • If your webcam still does not work after testing and restarting, check Device Manager (Windows) or System Report (Mac) to see whether your system recognizes the camera hardware.

Check permissions in your browser or video call app

If your webcam works in the built-in camera app but not in Zoom, Google Meet, Microsoft Teams, or your web browser, the problem is usually a permission setting, not the hardware. Video call software must ask your operating system for permission to use the camera, and you may have denied that permission by accident.

On Windows, go to Settings > Privacy & Security > Camera. Scroll down to "App permissions" and turn on the toggle for Camera. Then check the list below it—find the app or browser you want to use and make sure its toggle is on. Close and reopen the app, then test your webcam again.

On Mac, go to System Settings > Privacy & Security > Camera. You will see a list of apps that have asked for camera permission. Find the app or browser you want to use and make sure it is checked. If it is not in the list, the app has not asked for permission yet—open the app, try to use the camera, and you will see a permission prompt. Click "Allow."

Restart your computer to reset the camera driver

A restart fixes most webcam problems because it resets the camera driver—the software that lets your operating system talk to the hardware. If your webcam was working and suddenly stopped, or if it works in one app but not another, restart your computer first before troubleshooting further.

Save your work, shut down completely (not sleep mode), wait 10 seconds, and turn the computer back on. Once it finishes starting up, open your camera app again and test. Many webcam issues disappear after a restart because the driver reloads cleanly.

Check Device Manager on Windows to see if the camera is recognized

If your webcam still does not work after restarting and checking permissions, check whether Windows recognizes the hardware at all. Right-click the Start button and select "Device Manager." Look for a category called "Cameras" or "Imaging devices." Click the arrow next to it to expand the list.

If you see your webcam listed with a green checkmark, Windows recognizes it and the driver is working. If you see a yellow exclamation mark or a red X next to the camera name, the driver is broken or disabled. Right-click the camera and select "Enable device." If that does not work, right-click again and select "Update driver," then choose "Search automatically for updated driver software."

If you do not see a Cameras or Imaging devices category at all, Windows does not recognize your webcam. This usually means the camera is not plugged in (if it is external), the USB port is broken, or the camera hardware has failed. Try plugging an external webcam into a different USB port on your computer. If it still does not appear in Device Manager, the camera may be defective.

Check System Report on Mac to see if the camera is recognized

On Mac, click the Apple menu in the top left corner and select "About This Mac." Click "System Report." In the left sidebar, look for "Hardware" and click "USB" or "Thunderbolt." Scroll through the list and look for your webcam by name—built-in cameras usually say "FaceTime HD Camera" or "Integrated Camera."

If your camera appears in the list with a green status indicator, macOS recognizes it. If it does not appear at all, the camera is not connected or the hardware has failed. If it appears but shows a warning or error, try restarting your Mac. If the error persists, the camera driver may need to be reinstalled, which usually requires taking your Mac to an Apple Store or authorized repair center.

Test your webcam in a video call to see real-world performance

Once your webcam works in the built-in camera app and you have checked permissions, test it in an actual video call. Open Zoom, Google Meet, Microsoft Teams, or FaceTime and start a test call or join a meeting. Look for a camera icon or video preview button—click it to turn on your camera.

You should see your own video feed in a preview window. Ask a friend or colleague to join the call and confirm they can see you. If they see a black screen or frozen image, the problem may be your internet connection or the video call app, not the webcam itself. If you see yourself in the preview but your friend cannot see you, check the app's camera settings to make sure the correct camera is selected—some computers have multiple cameras.

Disconnect and reconnect an external webcam

If you are using an external USB webcam, unplug it from your computer completely. Wait 10 seconds, then plug it back in. Windows or Mac will detect it as a new device and reinstall the driver automatically. Open your camera app and test again.

If reconnecting does not work, try a different USB port on your computer. Some ports are faster or more stable than others, and a faulty port can prevent the camera from working even if the camera itself is fine. Avoid USB hubs if possible—plug the camera directly into a port on the computer itself.

Frequently Asked Questions

Why is my webcam showing a black screen even though it is plugged in?

A black screen usually means the camera driver is not working, the app does not have permission to use the camera, or the camera is disabled in your system settings. Restart your computer first, then check permissions in your operating system. If that does not work, check Device Manager (Windows) or System Report (Mac) to see whether the system recognizes the hardware.

Can I test my webcam without opening a video call app?

Yes. Use the built-in camera app on your computer—Camera on Windows, Photo Booth on Mac, or Cheese on Linux. These apps do not require any setup and will show you when ready whether your webcam is working. If it works in the camera app but not in Zoom or Teams, the problem is a permission setting in that app, not the webcam.

My webcam works in one app but not another. What does that mean?

It means the camera hardware is fine but one of the apps does not have permission to use it. Check your operating system's camera permissions and make sure the app you want to use is turned on. You may also need to restart the app or your computer for the permission change to take effect.

What should I do if my webcam does not appear in Device Manager or System Report?

If your system does not recognize the camera at all, the hardware is either not plugged in, plugged into a broken port, or defective. If it is an external camera, try a different USB port. If it is a built-in camera and it does not appear after restarting, the camera hardware may have failed and you may need professional repair.

Is it safe to update my webcam driver?

Yes. Updating the driver can fix compatibility problems and improve performance. In Device Manager on Windows, right-click your camera and select "Update driver," then choose "Search automatically for updated driver software." Windows will read and install the latest driver from your computer manufacturer or the camera maker.