5 Second Click Test

The classic five-second click test: press Start and click as fast as you can for five seconds. You get your total clicks and your clicks-per-second — the most widely quoted click-speed benchmark.

Five seconds is long enough that pacing matters — start fast but don't burn out at second two. Your best five-second result is stored in your browser.

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.