Webcam Test
Check that your camera works, right here in the browser: see the live picture, the real resolution and frame rate, switch between cameras and try 720p, 1080p or 4K. Nothing is recorded or uploaded.
Check that your camera works, right here in the browser: see the live picture, the real resolution and frame rate, switch between cameras and try 720p, 1080p or 4K. Nothing is recorded or uploaded.
Press Test my camera, allow the browser to use the camera when it asks, and the live picture appears at once with a verdict beside it: the camera is working, or it is not and why. It is the quick cam check before a video call, an interview, a stream or a class: is the webcam on, is it the right one, is the picture sharp, is the lighting fine, which way is it facing. The test runs on a laptop webcam, a phone's front or back camera, a USB camera or a capture card, in Chrome, Edge, Firefox and Safari, and nothing is recorded, saved or sent anywhere: the picture goes from the camera to your screen and nowhere else. People call it a camera tester, a cam checker, a camera preview or a camera testing page; whatever the name, these are the same tests: picture, quality, resolution, frame rate.
Under the picture the page reports what the camera actually delivers, not what the box says. Resolution is the size of the video the camera is sending right now, labelled SD, 720p, 1080p or 4K. Frame rate is measured by counting the frames the browser really decodes, second by second, next to the rate the camera claims, so a choppy picture shows up as a number. Aspect ratio, the facing direction (front or back), the camera's name and the features it exposes - zoom range, torch, autofocus, its maximum size - fill the rest of the rows. Every value copies to the clipboard with a click, handy when support asks "what resolution is your webcam".
Pick a resolution to test and the camera is restarted with that size requested. The result row then says whether it delivered it: a camera asked for 3840 × 2160 that answers with 1920 × 1080 is a 1080p camera whatever the marketing says, and one that answers 640 × 480 at every setting is being throttled by the browser, a USB 2 port or another app. Auto asks for the best the camera offers. If you have more than one camera - a built-in webcam and an external one, or a phone's front and back lenses - the Camera menu switches between them, and the mirror switch flips the picture the way a mirror does, which is how most people expect to see themselves. Freeze holds the current frame so you can look at sharpness and noise; fullscreen shows the picture as large as the screen allows.
Most camera tests fail for one of four reasons, and the page names the one it hit. Camera access blocked: the browser was told no at some point; click the camera icon in the address bar, allow it and try again. No camera found: the browser cannot see any camera at all, so check the cable, the privacy shutter or the keyboard switch that disables the webcam. Camera busy: another program has it - a video call still open in another tab, a camera app, a virtual camera driver - close that and retry. Resolution not available: the camera cannot deliver the size you asked for, so pick Auto. If the picture is black even though the test says working, the lens is covered or the room is dark; if it is upside down or sideways, the camera driver's orientation setting is the place to look.
The camera stream stays inside your browser: there is no upload, no recording, no snapshot kept, and the camera is released the moment you press Stop camera or leave the page, so the camera light goes out. The test works offline once the page has loaded.
Open this page, press Test my camera and allow camera access when the browser asks. If the camera works you see yourself within a second or two and the verdict reads "Camera is working" with the resolution and frame rate under it.
Browsers never let a page use a camera silently. The prompt is the browser, not this site, and the choice is remembered for this site only. Nothing here is recorded: the permission just lets the picture show on your screen.
Most laptop webcams deliver 1280 × 720 (720p); newer ones and most phones deliver 1920 × 1080 (1080p) or more. Pick 1080p or 4K from the resolution menu to see whether your camera can deliver it; the result row shows what actually came back.
Low light is the usual cause: the camera lengthens each exposure and the rate drops from 30 to 15 fps or lower. Other causes are another app sharing the camera, a slow USB port or hub, or a power-saving setting. Measured frame rate updates every second, so you can watch it change as you turn a light on.
Yes. Once the front camera is running, the Camera menu lists every camera the phone exposes; pick the back one. The picture is shown unmirrored for a back camera and mirrored for a front one, and you can flip that with the mirror switch.
No. The page has no server side and never records; the stream is shown live and stopped when you leave. To take and save a picture, use the picture taker instead.