How to Test Your Webcam Before an Online Exam

Online exams that use proctoring usually need a working webcam for the whole session, and many refuse to start if the camera is missing or blocked. Testing a few days ahead, and again shortly before the exam, gives you time to fix permission, hardware or lighting issues without pressure.

Before you start

Read your exam provider's technical requirements first. They decide which browser, operating system, app or extension you must use, and whether an external webcam is allowed. Your webcam check is only meaningful if you run it in the same environment you will use for the exam.

• The computer and webcam you will actually use for the exam
• The browser or proctoring app required by your exam provider, updated to a current version
• The room where you will sit the exam, with the lighting you will have at that time of day
• Any system check or practice exam your provider offers
• Your identity document, if the exam asks you to show it to the camera

Find out how the test tool handles video. Some browser-based webcam tests process the camera feed only on your device, while proctoring system checks may send images or video to the provider's service. Check the privacy information of each tool rather than assuming either behaviour.

Step-by-step instructions

• 1. Close video call apps, camera apps and other browser tabs that might be using the camera. Most webcams can be used by only one app at a time.
• 2. Connect an external webcam directly to the computer if you use one, and open any privacy shutter or cover on the lens.
• 3. Open a webcam test page or your provider's system check in the browser you will use for the exam.
• 4. When the browser asks for camera permission, allow it. If you deny it by mistake, you can change the camera permission for that site in your browser's site settings and reload the page.
• 5. If the computer has more than one camera, make sure the selected camera is the one you plan to use. Built-in cameras, external webcams and virtual camera software can all appear in the list.
• 6. Watch the live preview. Your face should be clearly visible, centred and not cut off at the top of the frame.
• 7. Note the resolution and frame rate the test reports, if it shows them, and compare them with any minimums in your exam requirements.
• 8. Adjust the lighting: face a window or lamp instead of sitting with a bright light behind you, and avoid strong light shining directly into the lens.
• 9. If the exam also records audio, test the microphone in the same session, because proctoring checks often require both.
• 10. Finish with your exam provider's own system check or practice exam, since that is the software that must accept your camera.

These steps do not change your system permanently. Camera permissions can be revoked in browser or system settings after the exam, and closed apps can simply be reopened.

Check the output

A successful webcam check shows a smooth live image of you, without freezing, long delays or black frames. Move your hand in front of the camera: noticeable stutter suggests a low frame rate, often caused by poor lighting, a busy USB connection or other apps using system resources.

• Your face is evenly lit and recognisable, not a dark silhouette
• The image stays sharp when you sit in your normal exam position
• Your identity document is readable when held up to the camera, if the exam requires it
• The background and desk area visible in the frame meet your exam's rules

Keep in mind the limits of a generic test. A browser test confirms that the camera works in that browser, but the proctoring software may request a different resolution or use its own settings. A mirrored preview is common and usually affects only what you see, but confirm with your provider if image orientation matters for document checks.

Common problems and next steps

Camera not detected: reconnect an external webcam, try another USB port and restart the browser. Also check your operating system's privacy settings, because Windows and macOS can block camera access for apps or browsers independently of the browser's own permission.

Black or frozen preview: make sure the lens is not covered and that no other app is using the camera. Restarting the computer releases a camera held by a background process.

Wrong camera shown: choose the correct device in the test page or browser camera settings. Virtual camera software can be listed as a camera and may be rejected by proctoring tools, so select your physical webcam.

Permission keeps getting blocked: remove the blocked setting for the site in your browser, reload the page and allow access when prompted. Browser extensions and workplace device policies can also block the camera.

Dark or grainy image: add a light source in front of you and reduce bright light behind you. Webcams often lower the frame rate in dim conditions, so better lighting can also make the video smoother.

If the camera works in a general test but fails in the exam provider's check, contact the provider's support before exam day and share the exact error message. They can confirm supported devices and settings, which a general webcam test cannot.