Spacebar Speed Test

Press Start and hammer the spacebar until the window closes. You get your total presses and your presses-per-second, timed with a high-resolution clock. Pick a 1, 5, or 10-second window from the control below.

Short windows reward a fast burst; longer windows test stamina. Your best count for each window length is saved separately 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.