Measure your reaction time in milliseconds across five rounds. Click the moment the box turns green.
Reaction time is how long it takes you to respond to something you see. In this test the box turns red, then green after a random delay; you click the instant it turns green and the gap is measured in milliseconds.
A typical human visual reaction time is around 200–250 ms. The test averages five rounds so a single lucky or unlucky click does not define your result. Click too early on the red screen and that round simply restarts.
Measure how many clicks per second (CPS) you can hit. Pick a duration and click as fast as you can.
Count how many times you can press the spacebar in a set time. Great for the spacebar speed challenge.
Measure your jitter clicking speed — the arm-tension technique that pushes CPS far above normal clicking.
The classic Kohi-style click test used by Minecraft PvP players to benchmark their CPS.
Check your right mouse button speed in clicks per second — handy for drag-clicking and bridging practice.
Test your double-click speed and spot a faulty mouse that double-clicks on a single press.
See how fast you can scroll — scrolls per second over a short timer. Mouse wheel or trackpad both count.