Click 'Start Test' to preview your webcam. Make sure you can see yourself clearly.
Click "Start Test" and allow camera access when prompted
Check that you can see yourself clearly in the preview
Make sure your lighting is good for video calls
A webcam captures light through a lens and focuses it onto an image sensor — typically a CMOS (Complementary Metal-Oxide-Semiconductor) chip. This sensor contains millions of tiny photosites (pixels) that convert light into electrical charges. The camera's processor then converts these charges into digital image data, producing a video stream at a specific resolution and frame rate.
720p (HD) provides 1280×720 pixels and is the minimum for video calls. 1080p (Full HD) at 1920×1080 is the standard for quality video conferencing. 4K (Ultra HD) at 3840×2160 offers the sharpest image but requires more bandwidth. Frame rate is equally important — 30 fps is standard, while 60 fps provides smoother motion for streaming and presentations.
Lighting is the most important factor. Face a window or use a ring light for even illumination. Avoid backlighting (a window behind you). Position your camera at eye level to create a natural perspective. Background — use a clean, uncluttered background or enable virtual backgrounds. Bandwidth — close other video apps and downloads to ensure smooth video streaming.
This test uses the getUserMedia API to request access to your camera. The video stream is displayed directly in an HTML5 <video> element — all processing happens in your browser. No video frames are captured, stored, or transmitted to any server. You can select between multiple cameras if available (e.g., front and rear cameras on mobile devices).
This is usually caused by another application (Zoom, Teams, FaceTime) exclusively using the camera. Close other video apps and try again. On some laptops, check if there's a physical privacy shutter covering the camera lens.
The biggest improvement comes from better lighting — face a window or use a desk lamp pointed at your face. Keep the camera at eye level. Use a wired internet connection instead of Wi-Fi. Close unnecessary browser tabs and applications to free up system resources.
No. The camera preview is displayed entirely in your browser using the getUserMedia API. No video data is uploaded, recorded, or stored anywhere. The test only shows a live preview of your camera feed.
Yes! If your device has multiple cameras, use the camera selector dropdown above the preview area to switch between them. Mobile devices typically offer front-facing and rear-facing camera options.