Webcam Test

Preview your camera before a call

Press Start camera and allow the browser to use your webcam. The test requests the highest available quality by default, then reports the resolution and frame rate the browser actually delivered. Choose a common resolution to test another supported mode. Download snapshot saves one PNG frame to your device. The microphone is not requested.

Selecting a camera

After permission is granted, the camera list can show connected USB webcams, laptop cameras, or phone cameras exposed by your browser. Choosing another camera releases the previous stream; press Start camera again to use the new selection. If a device disappears, choose System default and retry. A camera used through a virtual-camera application must also be available to the browser.

Worked example: checking a USB webcam

Connect a USB webcam and start with System default. If the preview still shows the laptop camera's view, select the USB webcam by name and start again. Highest available asks for the largest dimensions reported by the browser. You can then choose 1080p or 720p to compare modes. The displayed size is the actual stream, not a megapixel rating.

Understanding the preview

After permission, the browser may expose minimum and maximum width, height, and frame-rate capabilities. The test uses those ranges to offer common modes, but ranges do not guarantee every width-and-height combination works. It confirms the result through active track settings. The picture is shown without an extra mirror transform, and this page does not run a network video call.

Troubleshooting a blank picture

Open any physical privacy shutter, check the cable, and confirm that the operating system permits camera access. A permission denial may need to be changed in the browser's site controls before trying again. If the camera is busy, close software that may hold exclusive access. A dark but live preview usually needs more light or an uncovered lens rather than a different file format.

Privacy and limitations

The tool displays the camera stream locally and does not send pictures to a server. Downloading a snapshot is optional and saves only the current frame. Stop, changing devices, hiding the page, and navigation release the camera. Highest resolution may reduce frame rate or increase CPU, battery, and USB-bandwidth use. The test does not certify sensor specifications, focus accuracy, color calibration, or compatibility with a particular meeting service.

Webcam Test FAQ

Can I test my microphone here?

Use the separate Microphone Test. Keeping the two checks separate makes it clear which permission each tool requests.

Why are camera names missing initially?

Browsers often hide device labels until permission has been granted. Start the camera once to populate the list.

Will it work on a phone?

It can use cameras exposed by a compatible mobile browser. Device selection, permission prompts, and camera availability vary by platform.