Reaction Time Test
Wait for green, then click as fast as you possibly can. Wait for green, then click as fast as you possibly can. Five goes, and the median is your score — because one slow blink should not define your reflexes.
How to play Reaction Time Test
Learn it in seconds. Here's the whole game in four steps.
Click to begin
The panel turns blue while it waits. Do nothing yet.
Wait for green
It could be one second or four. Clicking early is a false start.
Click the moment it changes
Your time in milliseconds appears straight away.
Five goes, one score
The median of your five is what counts.
Why players love Reaction Time Test
Simple to pick up, easy to love.
Classic reaction test
Green means click. The one everybody means by "reaction time".
Go / No-Go
Red means keep still — it tests your brakes as well as your speed.
Aim trainer
Thirty targets, one after another, timed to the millisecond.
A fair score
The median, not the average, so one slow go cannot define the run.
No cheating it
A click faster than human nerves is logged as a false start.
Mouse, key or thumb
Click, tap or press Space — whatever is fastest for you.
Ready to play Reaction Time Test?
No download, no sign-up — jump straight in and play free in your browser on any device.
Test your reaction timeMore free games to play
No download, no sign-up — pick another game and dive in.