Is Reaction Time Game free?
Yes. The full browser game is free to play and does not require an account.
Reaction Time Game
Wait for the panel to turn green, then react as quickly as possible.
Press Start, then wait for green.
How to play
- Press Start and keep your pointer ready.
- Wait for the green signal.
- Tap immediately to record your reaction time.
A small game with a lasting idea
Take a free Reaction Time test. Wait for the signal, tap quickly, and see your result in milliseconds. It runs entirely in this page, keeps the rules visible, and needs no download or account.
Can I play on a phone?
Yes. The controls support touch, mouse, and keyboard where movement keys are useful.