About DeviceCheck

DeviceCheck is a collection of simple, free tools for checking that your devices work: screens, microphones, webcams, speakers and headphones, keyboards, mice and game controllers.

We built it because finding out whether something is broken shouldn't mean installing software or handing your camera feed to a website you don't know. Every test here runs inside your browser using standard web features. Sound and video are analysed on your own device and never uploaded.

Each tool comes with plain-English help to explain the results and what to try if something isn't working. If you have an idea for a new test, or spot a problem, please get in touch.