Reflex tests
How fast do you react, and how accurately can you flick? Measure it, then train it.
Speed & aim
What these reflex tests measure
The reaction time test shows a red screen and turns it green after a random delay. Click the moment you see green and the test records how many milliseconds passed. Five rounds give you a fair average instead of one lucky click, and clicking too early counts as a false start so you cannot cheat by guessing.
The aim trainer places targets at random spots. Hit them as quickly as you can: the test tracks your total time, your average time per target and your accuracy, so you can see whether you are fast but sloppy or careful but slow. It is a quick warm-up before a match and a simple way to see your progress over days.
Three quick variations test other kinds of reflexes: the sound reaction test measures how fast you respond to a beep instead of a colour change, the choice reaction test makes you decide between left and right before you press, and the target reaction test combines spotting a target with moving your mouse to it.
All tests use the browser’s high-resolution clock and the raw pointer events your games rely on, and your best results stay saved in your own browser.