The fastest way to test your webcam right now

Open your web browser and go to webcamtests.com or camera-test.com. Both sites ask permission to use your camera, then show you a live feed. If you see yourself, your webcam works. If you see a black screen or an error message, your camera either isn't connected, isn't turned on, or has a driver problem.

This takes 30 seconds and tells you whether the hardware itself is functioning. It does not require software installation or account setup.

Key Takeaways

  • A live-feed test site like webcamtests.com shows in seconds whether your camera is physically working and connected.
  • Windows users can check Device Manager to see whether the camera driver is installed and has no error flags.
  • Mac users can open System Preferences, go to Security & Privacy, and check which apps have camera permission.
  • If a test site shows a black screen, restart your computer first — many camera problems clear after a reboot.
  • Built-in camera apps (Windows Camera, Photo Booth on Mac) let you test without leaving your device.

Testing with your computer's built-in camera app

Windows 10 and 11 come with a Camera app. Press the Windows key, type "camera", and open the app. It will request permission to use your webcam. If the app opens and shows a live preview, your camera is working. If it shows a black screen or says "No camera found", you have a driver or connection issue.

On a Mac, open Spotlight (Command + Space), type "Photo Booth", and press Enter. Photo Booth will ask for camera permission the first time you use it. If you see a live preview, your camera works. If you see a black screen, check System Preferences > Security & Privacy > Camera to confirm the app has permission.

Checking your camera driver on Windows

Right-click the Start button and select Device Manager. Look for a category called "Cameras" or "Imaging devices". Click the arrow to expand it. Your webcam should be listed by name — often something like "USB Camera" or the manufacturer's name.

If you see a yellow exclamation mark or red X next to the camera name, the driver is not working correctly. Right-click the camera and select "Update driver". Windows will search for a newer version. If that does not work, right-click again and select "Uninstall device", then restart your computer. Windows will reinstall the driver automatically on restart.

If you do not see a Cameras category at all, your camera may not be connected or recognized by the system. Unplug the webcam (if it is external), wait 10 seconds, and plug it back in. Then open Device Manager again.

Checking camera permissions on Mac

Open System Preferences (or System Settings on newer macOS versions). Click Security & Privacy, then select the Camera tab. You will see a list of apps that have requested camera access. If an app you want to use is not listed, or if it is listed but the checkbox is unchecked, click the lock icon at the bottom left, enter your password, and check the box next to the app.

If you want to test whether the camera itself is working independent of app permissions, open Photo Booth (Command + Space, then type "Photo Booth"). The first time you open it, macOS will ask for permission. Grant it, and you should see a live preview. If you see a black screen even after granting permission, restart your Mac.

What to do if your camera still shows a black screen

Restart your computer first. Many camera problems — driver conflicts, permission glitches, hardware recognition issues — clear after a reboot. Shut down completely, wait 30 seconds, and turn the computer back on. Then test again using a web-based test site or your built-in camera app.

If the black screen persists after restart, check whether your camera is physically blocked. Look at the lens and make sure nothing is covering it. If you are using an external USB webcam, try plugging it into a different USB port. Some ports share bandwidth with other devices and may not provide enough power.

On Windows, you can also try uninstalling the camera driver completely and letting Windows reinstall it. Open Device Manager, right-click the camera, select "Uninstall device", check the box that says "Delete the driver software for this device", and click Uninstall. Restart your computer. Windows will detect the camera and install a fresh driver.

Testing your camera in a video call app

Open Zoom, Google Meet, Microsoft Teams, or Skype — whichever app you use most. Before joining a call, these apps usually show a preview of your camera feed. If you see yourself in the preview, your camera is working and the app has permission to use it. If you see a black screen or a message saying "No camera detected", the app either does not have permission or the camera is not responding.

In Zoom, click the up arrow next to the camera icon and select "Video Settings". You should see a preview. In Google Meet, click your profile picture, go to Settings, click "Audio and video", and check the camera preview. In Teams, click your profile picture, select Settings, then Devices, and look for the camera preview. If the preview is black in all of these, the problem is with the camera itself or its driver, not with one specific app.

External webcam versus built-in camera

If your computer has a built-in camera (most laptops do) and you also use an external USB webcam, test both separately. Open your camera app or a test website, and check which camera is active. You may need to switch between them in the app's settings. A built-in camera that works fine does not mean an external USB camera will work — they use different drivers and connections.

If an external webcam is not recognized, try a different USB port. If it still does not appear in Device Manager (Windows) or System Report (Mac), the cable may be damaged or the camera may be faulty. Borrow another USB webcam to test whether the problem is the camera or your computer's USB ports.

Frequently Asked Questions

Why does my camera show a black screen even though the app says it is connected?

The app has permission but the camera lens may be physically blocked, or the camera may not have enough power. Check the lens for obstructions. If you are using an external USB camera, try a different USB port. Restart your computer — this fixes most black-screen issues. If the problem persists, uninstall and reinstall the camera driver.

How do I know if my camera driver needs updating?

Open Device Manager on Windows and look for your camera under Cameras or Imaging devices. If you see a yellow exclamation mark or red X, the driver has a problem. Right-click the camera and select "Update driver". Windows will search for a newer version. You can also visit the camera manufacturer's website and read the latest driver directly.

Can I test my camera without installing anything?

Yes. Use a web-based test site like webcamtests.com or camera-test.com — they work in any browser and require no installation. Alternatively, use your computer's built-in camera app (Camera on Windows, Photo Booth on Mac). Both show whether your camera is working in under a minute.

What if my camera works in one app but not another?

The app that is not working probably does not have camera permission. On Windows, check Settings > Privacy & Security > Camera and make sure the app is listed and enabled. On Mac, go to System Preferences > Security & Privacy > Camera and check the same. If the app is not listed, open it and grant permission when prompted.

Do I need to restart my computer to fix a camera problem?

Yes, restart first. Many camera issues — driver conflicts, permission glitches, hardware recognition failures — clear after a reboot. Shut down completely, wait 30 seconds, and turn on your computer. Test your camera again before trying other fixes.