Is my device OK?
Free browser tests for your screen, mouse, keyboard, speakers, microphone, webcam, and controller. No downloads or sign-ups required.
Dead Pixel Test
Look for dark, bright, or stuck pixels using eight solid screen colours.
Refresh Rate Test
Estimate browser animation speed and compare repeat runs on the same screen.
Speaker Test
Play short left, right, or both-channel tones to check your sound output.
Mouse Double-Click Test
Check click counts and short gaps between mouse clicks for unexpected extra presses.
Keyboard Tester
See which keyboard keys respond and check held combinations.
Gamepad Tester
Check controller buttons, stick movement, and values reported by your browser.
CPS Test
Count clicks or taps over 5, 10, or 30 seconds and see your average speed.
Mouse Polling Rate Test
Estimate mouse movement samples received by the browser during a five-second run.
Microphone Test
Check microphone input and listen to an optional five-second recording in the page.
Webcam Test
Preview a camera, switch available devices, and check the delivered image size.