Webcam Test

About this tool

This free webcam test shows your camera's live picture along with the numbers that matter — the resolution it is really producing and the frame rate actually arriving, not the figures printed on the box. Take a snapshot to check framing and lighting before a call.

Everything runs in your browser. The video is displayed on your device and never recorded or uploaded — a snapshot exists only as a picture on this page until you save it.

Features

• Live preview with your camera's real resolution and measured frame rate
• Camera picker for laptops with more than one, or an external webcam
• Request 720p, 1080p or 4K to see what your camera can actually deliver
• Mirror toggle — see yourself as others see you
• Snapshot you can save as a PNG
• Nothing is recorded; the camera is released the moment you stop

Resolution and frame rate, honestly

The two numbers on screen come from different places, and the difference is the useful part.

Resolution is reported by the camera track itself. Ask for 4K on a camera that tops out at 1080p and it will quietly hand back 1080p — so the number shown is what you are truly getting, not what was requested. That is why a "4K webcam" can show 1920 × 1080 here: the mode requires more bandwidth or light than the current conditions allow.

Frame rate is measured by counting frames as they arrive, not by asking the driver. This matters, because the most common cause of a juddery picture is not the camera at all — it is light. In a dim room most webcams automatically lengthen exposure to brighten the image, and a longer exposure means fewer frames per second. A camera that manages 30 fps by a window can drop to 15 fps in the evening. If your frame rate is low, add light before you replace hardware.

Common uses

• Check the camera before a meeting, interview or online exam
• Confirm a new webcam works after plugging it in
• Compare the built-in camera with an external one
• Check framing, background and lighting, and take a snapshot to judge it
• See whether your camera really delivers the resolution it advertises

How to use it

• Press "Start webcam test" — then allow camera access when your browser asks
• Check the picture — resolution, frame rate and camera name appear underneath
• Switch camera or requested quality if you have more than one option
• Take a snapshot to check framing, and save it if you want to keep it
• Press "Stop camera" when you are done — the camera light goes out immediately

Good to know

• Nothing is recorded. The stream is displayed, never stored; a snapshot lives on the page until you save it
• The camera light is your proof. It goes out the instant you press Stop, or close the tab
• "Already in use by another app" is the most common failure — video-call apps hold the camera exclusively. Close them first
• If the browser never asks for permission, it was blocked earlier. Click the padlock next to the address and reset the camera permission
• Mirroring is only a preview choice. Most call software mirrors your self-view but sends the unmirrored picture to everyone else — the snapshot here follows whatever you see
• On phones the picture is usually the front camera; use the camera list to switch to the rear one
• A camera used by another browser tab counts as in use — close the other tab too

Related tools

• Microphone Test — check you can be heard as well as seen
• Screen Recorder — record your screen and camera
• Keyboard Test — check the rest of the hardware
• Crop Image — trim a snapshot before using it