InputTestHub

Webcam Test

Preview your webcam, choose an available camera and troubleshoot browser access. Review device settings and stop the camera when finished.

Device Tests Nothing uploaded No sign-up Free, unlimited
Device Tests tool
Press Start to open the camera. Nothing is opened until you do.
In short Press Start and allow the camera when your browser asks. The test shows the live picture and three numbers people usually confuse: the resolution you asked for, the resolution the browser actually negotiated with the camera, and the frame rate really being delivered. You can switch cameras, request a different resolution, capture a still, and press Stop to release the camera so its light goes off. If the camera will not open, the test names the reason — access blocked, no camera found, the camera busy in another program, or a page that is not secure — and lists the steps for that case. Nothing is recorded or uploaded.

How to use the Webcam Test

  1. Press Start and allow the camera when the browser asks.
  2. Check the picture, then switch cameras or request a resolution from the lists above it.
  3. Compare the negotiated frame rate with the delivered one; a big gap usually means poor lighting.
  4. Press Stop camera when you are finished — the camera light should go out.

About the Webcam Test

The Webcam Test opens your camera inside the page only after you press Start, shows what it is really delivering, and helps when it will not open at all.

Requested, negotiated and delivered

A page can ask for a resolution, but the browser and the camera agree on what they can actually provide, and that is often smaller. The test shows both. It also counts the frames that really arrive each second, which can fall well below the negotiated rate: in a dim room many webcams lengthen each exposure and drop frames to do it.

When the camera will not open

  • Access blocked: allow the camera for this site from the address bar, and check your operating system’s camera privacy settings let the browser use it.
  • No camera found: check the connection, a hardware switch or privacy shutter, and that the camera is enabled in your system’s device settings.
  • Camera busy: close video-call, streaming and recording programs, and other tabs using the camera.
  • Page not secure: browsers only allow cameras on https:// pages.

What stays on your device

The picture stays in this tab. Nothing is recorded, saved or uploaded. A captured still is created on your device and only saved if you download it. Stop releases the camera immediately, and so does leaving the page.

Related checks

Where this tool stops

The browser reports the settings it negotiated, not the full abilities of the camera sensor, and a virtual camera from streaming software appears here like any other camera.

Explained in our guides

All guides

Frequently asked questions

Is the video recorded or uploaded?
No. The stream stays inside this browser tab, is never written to disk and never leaves your device. The camera light goes out when you press Stop camera or leave the page.
The camera light is on but the picture is black.
Another application may be holding the camera — video-call apps are the usual culprit. Close them and press Start again. On laptops, also check for a physical privacy shutter or a hardware camera switch.
The resolution is lower than my camera supports.
The browser negotiates a resolution rather than always using the maximum. Choose a larger size from the list; the test shows what you asked for, what you got, and the largest size the camera reports.
I blocked the camera by mistake. How do I undo it?
Click the camera or site-settings icon in the address bar and set the camera to Allow for this site, then press Start again. If it is still blocked, check your operating system's camera privacy settings.
Are there any usage caps on the Webcam Test?
There is no cost and no cap. The Webcam Test is not a demo of a paid product, so nothing is held back or watermarked.
Is my data uploaded anywhere?
No. The Webcam Test runs entirely in your browser using JavaScript. Your input never reaches inputtesthub.com or any third party — open your browser's Network tab while you use it and you will see no request go out.
What do people use the Webcam Test for most?
Typical uses: checking a webcam works before a video call. Confirming a newly installed camera is detected. Testing a phone camera after a screen repair. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Do I need to install anything to run this test?
No installation, no extension and no driver. The Webcam Test uses the browser's own device APIs and begins as soon as the page loads, so there is nothing to press first. Press Reset at any point to start over with a clean slate.

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