Test Your Device
Instantly.

When something feels wrong with your device, a quick first check can save time. QuickDeviceTest brings everyday browser-based diagnostic tools together in one place, without an installation, account or complicated setup. Use a keyboard test to find an unresponsive key, a mouse test to check clicks and scrolling, or a microphone test before joining an important call. Each tool gives immediate feedback and explains what the result can—and cannot—tell you.

Getting ready for a conversation is easier when you can see and hear what is working. The webcam test lets you preview your camera, check its resolution and select another available camera. The speaker test sends a short tone to the left, right or both channels so you can check stereo routing. These are simple checks of the signal reaching your browser, rather than a guarantee that every other app will use the same device settings.

For display issues, the dead pixel screen test fills your screen with solid colors so you can look for persistent bright or dark spots. The screen resolution tool explains the difference between your screen size, browser viewport and device pixel ratio. Device Info puts useful browser details in one readable report. These values can help with troubleshooting, but browser privacy settings and operating-system scaling may affect what is reported.

Practice your speed, accuracy and memory with six challenges: typing, reaction time, click speed, aim, visual memory and sequences. Only your personal-best scores are saved on this device; no account or online ranking is involved. Input latency and device settings affect results, so compare your own attempts on the same setup. You can reset saved bests from each test.

Every tool is designed around a straightforward path: open the page, follow the instructions and see the feedback. Camera and microphone access are requested only when you start those tests. Your audio, video and keyboard inputs stay local to your browser. If a problem continues, use the troubleshooting notes beneath the tool, compare with another application, and check your device manufacturer’s support guidance.