Webcam Test, Check Your Camera Online
Test your webcam online, free and private. See a live preview, resolution and frame rate, take snapshots. Nothing is uploaded, it all runs in your browser.
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This webcam test lets you check in seconds whether your camera actually works, before you join that important video call. Click one button, grant the browser permission, and you immediately see a live preview of exactly what your camera captures. The tool reports the real resolution and frame rate your camera is delivering, shows the device name, and lets you switch between cameras if you have more than one connected, for example a laptop's built-in camera and an external USB webcam.
Frequently asked questions
Is my webcam video uploaded or recorded anywhere?
Why does the browser ask for permission to use my camera?
I clicked Block by accident. How do I re-enable the camera?
The page says NotReadableError or that the camera is busy. What does that mean?
No camera is found at all. What should I check?
What resolution and frame rate should my webcam show?
Why does my image look flipped, and which way do other people see me?
Can I test my phone or tablet camera with this tool?
Does the snapshot leave my device?
Why do camera names only appear after I start the camera?
About Webcam Test, Check Your Camera Online
Beyond the basic "does it work" check, the tester includes practical extras. A mirror toggle flips the image horizontally, so you can see yourself the way a mirror shows you or the way other people on a call actually see you. A snapshot button captures the current frame to a PNG file you can download, which is handy for checking sharpness, framing and lighting. A fullscreen button enlarges the preview so you can inspect fine detail, dust on the lens, or backlighting problems that are hard to spot in a small window.
Privacy is the whole point of doing this in your own browser: nothing is uploaded, recorded or transmitted anywhere. The video stream travels from your camera straight to the page you are looking at and stops there. There is no server involved, no recording, no analytics on your image, and the camera never starts by itself, you have to click Start. The moment you click Stop or leave the page, the browser releases the camera completely and the indicator light next to your lens turns off.
The tester is also a troubleshooting tool. If the camera fails to start, you get a plain-language explanation of what went wrong instead of a cryptic error code: permission denied by the browser or the operating system, no camera detected at all, or a camera that is locked by another application such as Zoom, Teams or OBS. Each error comes with concrete steps for Chrome, Firefox, Edge and Safari, and for the Windows and macOS privacy settings that most often silently block cameras. It works on desktops, laptops, tablets and phones alike.
From a Coffee Pot in Cambridge to a Camera in Every Pocket
The world's first webcam was not built for meetings but for coffee. In 1991, computer scientists at the University of Cambridge pointed a camera at the coffee pot in the Trojan Room of their computer lab so that people working elsewhere in the building could check whether the pot was full before walking over. In 1993 the feed was connected to the young World Wide Web, and the humble pot became a global celebrity, watched by millions of people until the camera was finally switched off in 2001. The pot itself was auctioned on eBay and bought by Der Spiegel for 3,350 pounds.
The first commercial webcam, the Connectix QuickCam, arrived in 1994. It looked like a grey eyeball, connected over a serial or parallel port, and delivered 320 x 240 greyscale video at around 15 frames per second, for 99 dollars. Time magazine later ranked it among the all-time great computer devices. Through the 2000s webcams became standard laptop equipment, and the pandemic years of 2020 and 2021 made them into essential infrastructure overnight, with popular models sold out worldwide for months.
The technology this tester relies on, getUserMedia and WebRTC, has its own story. Google open-sourced WebRTC in 2011 after acquiring the underlying audio and video engines, and browser makers standardised it through the W3C and IETF so that any web page could access cameras and microphones with the user's permission, no plugins required. It effectively retired Flash and Silverlight for video and is the reason a simple web page can now show you your own camera feed with a single click, while keeping every frame on your device.