10 Second Click Test

A ten-second endurance run: press Start and keep clicking for a full ten seconds. Longer than the usual five, so it rewards a steady, sustainable rhythm over a single frantic burst.

Find a pace you can hold for the whole ten seconds rather than sprinting early. Your best ten-second count is saved on your device.

How it works: everything runs in your browser — timing uses a high-resolution clock (performance.now()) and your best score is saved on this device only. Nothing is uploaded, and there's nothing to install.