The fastest way to test your camera right now
Open your operating system's built-in camera app — it will show you a live feed from your webcam in seconds. On Windows 10 and 11, search for "Camera" in the Start menu and click the app. On Mac, open Photo Booth (search for it in Spotlight). On Linux, open Cheese or Snapshot depending on your distribution. If you see a live video of yourself or your surroundings, your camera hardware is working.
If the app opens but shows a black screen, a frozen image, or says "no camera found", your camera either has a hardware problem, needs a driver update, or is blocked by privacy settings. The sections below walk you through each possibility in order.
Key Takeaways
- The Camera app (Windows), Photo Booth (Mac), or Cheese (Linux) will show you when ready whether your webcam is producing a live video feed.
- A black screen usually means a driver is missing or outdated, not that the camera is broken.
- Windows and Mac both have privacy settings that can block camera access to all apps or specific ones — check these before assuming hardware failure.
- If the camera app itself cannot access your camera, the problem is at the operating system level and no third-party app will work either.
- Most laptops have a physical camera shutter or indicator light you can check to confirm the camera is not disabled at the hardware level.
Testing on Windows 10 and 11
Press the Windows key, type "Camera", and click the Camera app when it appears. The app will request permission to use your camera — click "Yes" when the prompt appears. You should see a live video feed within two seconds. If you see yourself or your room, the camera is working.
If the app says "We can't find a camera" or shows a black screen, open Settings, go to Privacy & Security, then Camera. Make sure the Camera toggle is turned on. Below that, check whether the Camera app itself has permission — if it is toggled off, turn it on. Close the Camera app completely and reopen it.
If the toggle is already on and the app still fails, your camera driver may be outdated or missing. Open Device Manager (right-click the Start button and select it), expand "Cameras", right-click your camera, and select "Update driver". Choose "Search automatically for updated driver software". Restart your laptop after the update finishes and test again.
Testing on Mac
Open Spotlight by pressing Command + Space, type "Photo Booth", and press Enter. The app will open and show a live feed from your camera when ready — you will see yourself in the preview window. If the image is clear and updates in real time, your camera is working.
If Photo Booth shows a black screen or says the camera is not available, open System Settings, click Privacy & Security in the sidebar, then select Camera. Make sure the Camera toggle is on. Below that, check whether Photo Booth (or any app you want to use) has permission — if it is unchecked, click the checkbox next to it.
If the camera is already enabled in privacy settings but Photo Booth still fails, restart your Mac. If it still does not work after restart, the camera driver or hardware may need service — Mac cameras rarely fail in software, so a persistent black screen usually indicates a hardware issue.
Testing on Linux
Open your process menu and search for "Cheese" or "Snapshot" depending on your distribution. Click to open it. The app will display a live camera feed in the main window. If you see yourself or your surroundings updating in real time, your camera is working.
If the app shows a black screen or says no camera is detected, open a terminal and run the command ls /dev/video* to see whether your system recognizes a camera device. If you see /dev/video0 or similar, the camera is detected but the app may lack permission. Run groups to see your user groups, and if "video" is not listed, add your user to the video group with sudo usermod -a -G video $USER, then log out and back in.
If no /dev/video device appears, your camera driver is not loaded. Check your laptop manufacturer's support page for Linux camera drivers, or search your distribution's package manager for your specific camera model. Some older or less common cameras require manual driver installation.
Checking privacy and permission settings
Both Windows and Mac allow you to block camera access at the operating system level, which prevents every app from using the camera even if the hardware works. This is the most common reason a camera test fails when the hardware is actually fine.
On Windows, go to Settings > Privacy & Security > Camera and confirm the toggle is on. Then scroll down and check each app you want to use — if an app is toggled off, turn it on. Some apps (like Zoom or Teams) may need to be restarted after you grant permission.
On Mac, go to System Settings > Privacy & Security > Camera and look for the list of apps below. If an app is not listed, it has never requested camera access. If it is listed but unchecked, click the checkbox. Some apps cache permission decisions, so restart the app after changing the setting.
On Linux, permissions are usually handled through user groups (the "video" group) rather than a central privacy panel. If you added your user to the video group, you must log out and log back in for the change to take effect.
What to do if the camera app itself cannot access your camera
If the built-in camera app (Camera on Windows, Photo Booth on Mac, or Cheese on Linux) cannot access your camera, no other app will be able to either. The problem is at the operating system level, not with individual applications. This means the issue is either a missing driver, a hardware block, or a system-level permission problem.
First, check whether your laptop has a physical camera shutter or a hardware disable button. Some laptops have a small slider or button near the camera that physically blocks it. Look at the top bezel of your screen or check your laptop's manual. If the shutter is closed or the button is in the "off" position, move it to open or enable the camera.
Second, restart your laptop completely. Many camera problems resolve after a full restart, especially on Windows after a driver update or on Mac after a permission change.
If the camera app still fails after restart and the physical shutter is open, the driver is likely missing or corrupted. On Windows, use Device Manager to update or reinstall the camera driver (see the Windows section above). On Mac, camera drivers are built into the operating system and cannot be updated separately — if restart does not fix it, the hardware may be faulty. On Linux, install the appropriate camera driver package for your hardware.
Testing with a video call app if the camera app fails
Sometimes the built-in camera app has a bug or is missing, but a third-party app like Zoom, Google Meet, or Discord can still access your camera. If the camera app fails but you want to confirm your camera works before troubleshooting further, open one of these apps and start a test call or meeting.
When you start a video call, the app will ask for camera permission. Grant it and look for a preview of your camera feed. If you see yourself, your camera is working — the problem is with the built-in app or its settings, not your hardware. If the third-party app also shows a black screen or says no camera is found, the problem is at the operating system level and you should follow the driver and permission steps above.
Do not rely on a third-party app as your only test, because some apps have their own permission bugs or may not report camera errors clearly. Always test with the built-in app first.
Frequently Asked Questions
Why does my camera show a live feed in the camera app but not in Zoom?
Zoom (or another app) does not have permission to use your camera. On Windows, go to Settings > Privacy & Security > Camera and toggle on the permission for Zoom. On Mac, go to System Settings > Privacy & Security > Camera and check the box next to Zoom. Close Zoom completely and reopen it. If it still does not work, restart your laptop.
My camera works in the camera app but shows a black screen in Google Meet. What is wrong?
Google Meet does not have permission, or your browser does not have permission to access the camera. In your browser settings, look for camera permissions and make sure the website is allowed. You may also need to grant permission to your browser itself in your operating system's privacy settings. Restart your browser and try again.
The camera app says "no camera found" but I can see a camera listed in Device Manager. What do I do?
Your camera is detected by Windows but the driver may be outdated or corrupted. Right-click the camera in Device Manager, select "Update driver", and choose "Search automatically for updated driver software". If that does not work, right-click it again, select "Uninstall device", restart your laptop, and Windows will reinstall the driver automatically.
Is my camera broken if it shows a black screen even after updating the driver?
Not necessarily. A black screen after a driver update usually means a permission or privacy setting is blocking the app, not that the hardware is broken. Check your operating system's privacy settings (Windows Settings > Privacy & Security > Camera, or Mac System Settings > Privacy & Security > Camera) and make sure the camera is enabled. If privacy settings are already on and restart does not help, the camera may have a hardware fault and will need service.
Can I test my camera without opening any apps?
Not easily. The only way to confirm your camera is working is to see a live video feed, which requires an app. The built-in camera app is the fastest and most reliable way to do this. If you want to avoid installing anything, use the camera app that came with your operating system — it is already there and does not require read or setup.