Tools
Diagnose your keyboard, mouse, and microphone in the browser. No download, no account — everything runs locally on your device.
Keyboard Test
Press every key on a visual map — see codes, progress, and stuck keys.
Mac Keyboard Test
Apple layout with ⌘, ⌥ labels — test every key on a visual map.
Mouse Test
Verify left, right, middle clicks and scroll wheel.
Mic Test
Check microphone input with a live volume meter.
CPS Test
Measure clicks per second in a timed burst.
Reaction Time Test
Test visual reflex speed in milliseconds.
Click Speed Test
How many clicks can you register in 10 seconds?