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Quick browser challenges you can play in seconds — measure your click speed (CPS), test your reaction time, and check every key on your keyboard, plus classic randomizers like spin the wheel, dice, and coin flip. Everything runs in your browser, with no sign-up and nothing to install.
9 tools · free · no sign-up
They measure with the browser's high-resolution clock, which is precise to fractions of a millisecond — more than enough for click speed, typing speed, and reaction timing. What varies is everything around the clock: a reaction result includes your screen's refresh delay and your mouse or touchscreen's latency, so the same person scores differently on a 60 Hz laptop and a 144 Hz gaming setup. That makes these tests best for comparing yourself to yourself — same device, same conditions — rather than for comparing numbers with a friend on different hardware. Your best scores are kept in your browser's local storage only; there are no accounts and no leaderboards, so nothing you do here is recorded anywhere else. The keyboard tester reads key events directly in the page, which is exactly what makes it useful for finding stuck keys, dead switches, and ghosting on a suspect keyboard.
Yes — every game and test here is completely free, with no account and no limits. Just open one and start.
The click speed and reaction tests work great on touchscreens. The keyboard tester needs a physical keyboard, so it's best on a laptop or desktop.
Your best scores are stored privately on your own device (in your browser), never uploaded — so they're there when you come back to beat them.