Webcam Test

No. The camera feed is drawn straight to the video element in your browser and the microphone level is read locally with the Web Audio API. Nothing is uploaded, recorded to a server, or stored anywhere outside your own device. Snapshots you take stay in browser memory until you download or remove them, and closing the tab clears everything.

Browsers only allow a page to access your camera or microphone after you explicitly grant permission, and only over a secure connection. That's a browser-level security rule, not something this page controls. If you accidentally blocked it, look for a camera icon in the address bar to change the permission and reload the page.

Browsers hide device labels like "FaceTime HD Camera" until a page has been granted permission at least once, as a privacy measure so a site can't fingerprint your hardware without you knowing. Once you click "Start Camera" and allow access, the dropdowns refresh with the real device names.

getUserMedia, the browser API this tool relies on, only works on pages served over HTTPS, or on localhost during development. It will not work on a plain http:// page, even on your own local network, because browsers treat unencrypted origins as untrusted for hardware access.

Most webcams can only stream to one application at a time. If a video call, another browser tab, or a recording app already has the camera open, close it first and click Start Camera again.

Yes. Once permission is granted, the Camera and Microphone dropdowns list every connected device. Switching either one restarts the stream with the device you picked, so you can check a USB webcam against a built-in one, or an external mic against your laptop's.

It's a rolling volume reading (technically the root-mean-square amplitude of the incoming audio signal), redrawn many times a second. Talking or making noise should move it right away; if it stays flat, the wrong microphone is likely selected or the input is muted at the OS level.

Whatever your camera and browser actually negotiate for the stream, not a fixed number. A webcam might report 1280 × 720 at 30 fps in one browser and something slightly different in another, since drivers and browsers can each apply their own defaults.

Yes. "Take Snapshot" captures the current frame (mirrored the same way the preview looks, if mirroring is on) and adds it to the gallery below, where you can download it as a PNG or remove it. Nothing is saved automatically; you choose what to keep.

Yes. The Recording panel captures video and audio together using your browser's built-in MediaRecorder, with a timer showing how long you've been recording. Stop Recording adds the clip to the list below, where you can preview it, download it as a .webm file, or remove it. It works in current versions of Chrome, Edge, and Firefox; if your browser doesn't support it, the button lets you know instead of failing silently.

Use the Speaker Test card and click "Test Left Speaker," "Test Right Speaker," or "Test Both Speakers." Each one plays a short tone through the channel you picked, so you can confirm sound is coming from the correct side, which is exactly the kind of thing that's easy to get wrong with a new headset or a mixed-up cable.

Brightness is a 0 to 255 reading of how light or dark the current frame is on average, labeled "Too Dark," "Good," or "Too Bright" so you don't have to interpret the raw number yourself. Average Color shows the overall color cast of the frame as a swatch and hex code, which is handy for noticing a strong tint from bad lighting or white balance before you go live.

The tool samples the picture a couple of times a second and compares it to the previous sample. If nothing has visibly changed for about five seconds straight, it shows a gentle warning in case your camera got covered, disconnected, or stuck. Pointing the camera at a genuinely still scene can trigger it too; it's a hint to check, not a hard error.

Turning on "Grid" overlays a rule-of-thirds grid on the preview, the same guide photographers and video creators use to frame a shot so the subject isn't dead center. It's only a visual guide on your screen; it never appears in snapshots or recordings.