Brain Training Games
Reaction Time
Click as fast as you can the moment the screen turns green. We measure several times and show your representative reaction time.
How to play
- Wait while the screen is red.
- Click the instant it turns green.
- If you click too early, that attempt is retried.
Trials
More trials make the result more stable.
Log in to save your scores and compare with others.
Measurements can vary slightly depending on your device and browser.