Test your webcam before you need it

The fastest way to test your webcam is to open the camera app that came with your operating system. On Windows, search for "Camera" in the Start menu and click the app; on Mac, open Launchpad and search for "Photo Booth" or use the built-in Camera app if you have macOS 13 or later. Both will show you a live feed from your webcam in seconds. If you see yourself on screen, your camera is working. If the screen stays black or shows an error, your camera either isn't connected properly, is being blocked by software, or has a hardware problem.

Testing before a video call, online meeting, or recording session takes two minutes and saves you from discovering a broken camera when you're already late. This guide walks you through the main testing methods and what to do when something goes wrong.

Key Takeaways

  • The Camera app on Windows and Photo Booth on Mac are the quickest built-in tests and show you exactly what your webcam sees.
  • If your camera shows a black screen, check that no other app is using it, that the camera is not disabled in your device settings, and that the lens cap is not on.
  • Browser-based tests like Webcam Test (webcamtests.com) let you check your camera without installing anything and show how it looks to others on video calls.
  • If your camera works in one app but not another, the problem is usually permissions — the app does not have permission to use your camera.
  • Restarting your laptop closes any app that might be locking your camera and often fixes a black screen without any other troubleshooting.

Using the built-in camera app on Windows

Open the Start menu and type "Camera" into the search box. Click the Camera app when it appears. The app will ask for permission to use your webcam the first time you open it — click "Yes" to allow it. You should see a live video feed from your camera within a few seconds.

Look at the image on screen. Check that it is in focus, that the lighting is good enough to see your face clearly, and that the angle is what you want. If you see yourself, your camera is working. If the screen stays black, move to the troubleshooting section below. The Camera app also has a photo button (usually a circle icon) if you want to take a still image to check the quality.

Using Photo Booth on Mac

Open Launchpad (the grid icon in your dock) and search for "Photo Booth." Click the app to open it. You should see a live feed from your camera in the main window. If this is the first time you have opened Photo Booth, your Mac will ask for permission — click "Allow" in the popup.

Check that you can see yourself clearly and that the image is in focus. Photo Booth shows you exactly what your camera sees, so this is a good test of both the hardware and the image quality. If you see a black screen or an error message, your camera is not working or is blocked — see the troubleshooting steps below.

Testing your camera in a web browser

If you want to see how your camera looks to other people on a video call, use a browser-based camera test. Open any web browser and go to webcamtests.com. The site will ask for permission to use your camera — click "Allow." Within a few seconds you should see your live feed in the browser window.

This test is useful because it shows you the camera quality as it appears to others on Zoom, Google Meet, Teams, or other video platforms. You can also check the microphone at the same time. If the browser shows a black screen or says "Camera not found," your camera is either not working or is blocked by your browser settings — see the troubleshooting section.

What to do if your camera shows a black screen

A black screen usually means one of three things: another app is using your camera, your camera is disabled in settings, or the lens cap is on. Start with the simplest fix first.

Check the lens cap. Many laptops come with a physical shutter or cap over the camera. If your camera is covered, open it. This solves the problem in about half of all black-screen cases.

Restart your laptop. Close all apps and restart your computer. This closes any app that might be locking your camera and often fixes the problem without any other work. Wait for your laptop to fully boot, then open the Camera app again.

Check that no other app is using the camera. On Windows, open Settings, go to Privacy & Security, then Camera. Scroll down to "Camera access" and look at which apps have permission. Close any app that is currently running and using the camera — Zoom, Teams, Discord, or a browser with a video call open. Then try the Camera app again. On Mac, open System Settings, go to Privacy & Security, then Camera. You will see which apps have camera permission. Close any app that is using it and try Photo Booth again.

Turn the camera back on in settings. On Windows, go to Settings, Privacy & Security, Camera. At the top, make sure "Camera access" is turned on. If it is off, click the toggle to turn it on. On Mac, go to System Settings, Privacy & Security, Camera. Make sure the apps you want to use have a checkmark next to them.

Fixing permission problems when your camera works in one app but not another

If your camera works in the Camera app but not in Zoom, Teams, or your browser, the problem is almost always permissions. The app that is not working does not have permission to use your camera.

On Windows, go to Settings, Privacy & Security, Camera. Scroll down to "Allow apps to access your camera" and find the app that is not working. Toggle it on. Close the app completely, then open it again and try your camera.

On Mac, go to System Settings, Privacy & Security, Camera. Look for the app in the list. If it is not there, the app has never asked for permission. Open the app, try to use the camera, and click "Allow" when the permission popup appears. If the app is already in the list but does not have a checkmark, click the checkmark to enable it.

When to check your camera driver on Windows

If your camera still shows a black screen after trying all the steps above, your camera driver may be out of date or missing. A driver is software that lets Windows talk to your camera hardware.

Right-click the Start menu and click "Device Manager." Look for "Cameras" in the list and click the arrow next to it to expand it. You should see your camera listed. If there is a yellow warning triangle next to it, the driver has a problem. Right-click your camera and click "Update driver." Windows will search for a newer version. If Windows finds one, it will install it automatically. Restart your laptop after the update finishes.

If you do not see "Cameras" in Device Manager at all, your camera may not be recognized by Windows. This usually means a hardware problem — the camera may be disconnected inside the laptop or damaged. At this point, contact the laptop manufacturer or take it to a repair shop.

Testing an external USB camera

If you are using an external webcam plugged into a USB port, make sure the cable is fully inserted into the port. Try a different USB port on your laptop — sometimes a port stops working. Open the Camera app or Photo Booth and see if it recognizes the external camera.

If the external camera still does not work, unplug it, wait 10 seconds, and plug it back in. This forces Windows or Mac to recognize it again. Open the Camera app after you plug it back in. If it still does not work, the camera may be broken or the cable may be damaged. Try the camera on a different laptop if you can to confirm it is not a problem with your computer.

Frequently Asked Questions

Why does my camera work in Zoom but not in Google Meet?

Google Meet does not have permission to use your camera. On Windows, go to Settings, Privacy & Security, Camera, and turn on the toggle for Google Chrome (or your browser). On Mac, go to System Settings, Privacy & Security, Camera, and make sure your browser has a checkmark. Close and reopen Google Meet.

Can I test my camera without opening an app?

Yes. Open any web browser and go to webcamtests.com. It will ask for camera permission and show your live feed in the browser. This works on Windows, Mac, and Chromebook without installing anything.

My camera works but the image is blurry. What can I fix?

Make sure your lens is clean — wipe it gently with a soft, dry cloth. Check that you are sitting far enough from the camera (usually 12 to 18 inches). If your camera has a focus ring (a rotating ring around the lens), try turning it slightly to focus. If it is still blurry, the camera may have a hardware problem.

Is there a way to test my camera before a video call without joining the call?

Yes. Open the Camera app or Photo Booth to see your live feed. You can also use webcamtests.com in your browser. Both show you exactly what others will see when you join a call. Most video apps like Zoom and Teams also have a preview screen before you join — you can test your camera there without entering the meeting.

What if my camera is disabled in BIOS?

BIOS is the system that runs before Windows starts up. Some laptops let you disable the camera in BIOS for security. Restart your laptop and look for a key to press during startup (usually F2, F10, or Delete — your laptop will show which one). Look for a Camera or Integrated Camera setting and make sure it is enabled. Save and exit. This is rare on consumer laptops but common on business models.