Webcam Test
Check that your camera works and see exactly what others see on a video call. Runs entirely in your browser.
How to Use This Test
- Click Start webcam test and hit Allow when the permission prompt appears near your address bar.
- Your live image should appear within one or two seconds. If it stays black, see the troubleshooting section below.
- Check the resolution and frame rate shown — this is what apps like Zoom will actually receive from your camera, not what the hardware is theoretically capable of.
- Use the Camera dropdown to switch between devices if you have more than one connected.
- Click Mirror to flip the image. Most video call apps already mirror your self-view, so this shows what participants actually see.
- Move around and check how the camera handles motion and low light. Blurry movement or heavy grain usually means the sensor is struggling with conditions.
What Your Results Mean
Clear image at 1080p or 720p: Your camera is working well. Most video call platforms cap at 720p by default, so 1080p gives you headroom.
Image at 480p or lower: This may be your camera's maximum resolution, or the browser is limiting it. Try a different browser or check for an updated driver.
Preview is dark or grainy in normal lighting: Usually a lighting issue. Put a light source in front of you, not behind — a window behind you creates a silhouette that no camera handles well.
Preview is blurry regardless of lighting: Clean the lens with a soft cloth. On built-in laptop cameras, fingerprints and smudges are the most common reason for a permanently soft image.
Preview stays black despite granting permission: Another application is almost certainly holding the camera. Windows only allows one app to use a camera at a time.
Frame rate reads as 15fps or lower: Background tasks, a slow USB hub, or the camera's own low-light mode can limit the frame rate. Close unnecessary apps and connect external cameras directly to the PC rather than through a hub.
Common Problems and Fixes
Permission was blocked by mistake
If you clicked Deny, the browser won't ask again automatically. In Chrome, click the camera icon in the address bar and set it to Allow, then reload. In Firefox, click the information icon (i) in the address bar.
Another app is using the camera
Only one app can use a webcam at a time. Close Zoom, Teams, Skype, OBS, and any browser tabs that might hold the camera, then reload this page.
No camera detected at all
On Windows, check Settings → Privacy & Security → Camera and confirm "Let apps access your camera" is on. Open Device Manager and look for a yellow warning triangle on your webcam — that indicates a driver problem. For external webcams, try a different USB port.
Webcam works here but shows black in Teams or Zoom
Each app needs its own camera permission. In Teams: Settings → Devices → Camera. In Zoom: Settings → Video → Camera. Select your webcam explicitly.
Green tint or unusual colouring
Update your webcam driver from the manufacturer's website. On some laptops, a pre-installed privacy or camera enhancement app interferes with colour rendering.
Physical privacy shutter is closed
Many laptops and webcams have a small sliding cover. If the image is black and there's a slider on the camera housing, open it.
Why This Test Matters
Video calls are a standard part of working life, and a camera that only appears broken right as a meeting starts costs time and stress. A two-minute check beforehand removes that risk entirely.
It's also the fastest way to see exactly what other people see on calls. You can check your framing, assess the lighting, and spot problems — a dirty lens, a bad angle — while there's still time to fix them.
For anyone testing a second-hand laptop, the webcam check on arrival catches a broken camera before the return window closes.
Why Webcam Problems Happen
A camera that won't show a picture usually comes down to one of six causes, and a black preview is far more often a permission or "who's using it" issue than a dead camera.
1. A physical privacy shutter is closed. Many laptops — ThinkPads with ThinkShutter, plenty of HP and Dell models — have a tiny sliding cover or a keyboard shortcut that physically blocks the lens. If the preview is pure black with no error, check for a slider above the camera first.
2. Another app already holds the camera. On Windows, only one app can use a webcam at a time, so if Zoom, Teams or the Camera app is open in the background, this preview goes black. Close every video app (check the system tray) and reload.
3. A privacy permission is off. On Windows 11 24H2: Settings → Privacy & security → Camera — turn on "Camera access," then make sure your browser is enabled in the list, and that "Let desktop apps access your camera" is on. On macOS Sequoia: System Settings → Privacy & Security → Camera, then switch the app on. macOS has no global camera toggle, so it's always per-app.
4. The wrong camera is selected. Laptops with an IR camera for Windows Hello, or a virtual camera from OBS, can be picked by default. Use the dropdown on this page to switch to your real webcam.
5. The driver glitched or the device is disabled. On Windows, right-click Start → Device Manager → expand "Cameras," right-click your webcam and choose Disable then Enable to reset it, or "Update driver." A camera showing a small warning icon here is a driver problem, not a hardware fault.
6. An external webcam is on a weak connection. A Logitech C920 or Brio plugged into an unpowered USB hub can drop frames or fail to start. Connect it straight into a port on the computer, ideally USB 3.0 (the blue one), and avoid long unpowered extension cables.
It Works Here But Not in Zoom, Teams or Discord
A live preview on this page means the camera and its driver are healthy, so a failure inside one app is an app-level setting. Each tool selects its own camera and keeps its own permission.
In Zoom: Settings → Video, then choose your webcam from the Camera dropdown — Zoom often defaults to the wrong one on laptops. In Microsoft Teams: "…" → Settings → Devices → Camera. In Discord: User Settings → Voice & Video → Video Device, then "Test Video." In Google Meet and other browser calls, check both the in-call gear → Video setting and the camera permission behind the address-bar lock icon. If it works here but one app is black, that app has either the wrong camera selected or is being blocked while another program holds the device.
How to Get the Best Webcam Results
- Light your face from the front. Put a window or a lamp behind your screen, facing you. A bright window behind you turns you into a silhouette — the single most common reason people look bad on calls.
- Raise the camera to eye level. Prop a laptop on a stand or a couple of books so the lens sits level with your eyes, not pointing up from your lap. It removes the unflattering up-the-nose angle instantly.
- Wipe the lens. A faint fingerprint smudge softens the entire image into a hazy blur. A quick pass with a microfibre or shirt cuff sharpens everything.
- Frame head-and-shoulders with a little headroom. Sit roughly an arm's length away so your eyes are about a third of the way down the frame — not a tight close-up, not lost in the room.
- Free up your upload bandwidth. Call apps compress video based on upload speed, so a large download or another streaming device drags your quality down. Pausing those does more than any camera setting.
- Plug external webcams in directly. Straight into a USB 3.0 port, not a daisy-chained hub, keeps the frame rate steady and avoids the intermittent black-screen drop.
Frequently Asked Questions
Does the webcam test record my video?
No. The video stream runs entirely within your browser. Nothing is recorded, uploaded, or stored anywhere.
Why did my browser ask for camera permission?
Browsers require your active permission before any site can access your camera. This protects your privacy — no site can use your camera silently without you allowing it.
How do I fix a black screen despite granting permission?
The most common cause is another app already using the camera. Close all video apps and reload. If still black, check OS camera privacy settings and any physical shutter on the device.
Can I test a virtual camera like OBS Virtual Camera?
Yes. If your OS registers it as a camera device, it will appear in the dropdown and the preview shows whatever that virtual camera outputs.
My camera looks fine in the test but bad on calls. Why?
Video call apps compress the stream heavily based on your upload speed. Lighting also makes a larger difference than most people expect — a small lamp aimed at your face improves call quality more than a camera upgrade.
Webcam works in the test but fails in a specific app. Why?
That app lacks camera permission or has the wrong camera selected. Check the app's own video settings and its permission in your OS privacy settings.
Why is my webcam preview black even though the light is on?
If the camera's indicator light is on but the picture is black, another app usually grabbed the feed first, or a virtual/IR camera is selected instead of the real one. Close other video apps, then pick the correct camera from the dropdown. A closed privacy shutter produces the same black screen with the light off.
How do I test a webcam on a laptop without installing software?
This page is all you need — click Start, allow access, and your live image appears. On Windows you can also open the built-in Camera app, and on a Mac, Photo Booth opens the camera, but neither is required to confirm it works.