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Reaction Time Test
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Reaction Test
Tap the moment the screen turns green.
Click to Start
Best of 5 attempts — wait for green, then click fast.
Best
—
Average
—
All-Time Best
—
Reset Run
How to Play ▾
Click the panel to begin an attempt — it will turn
red
Wait patiently. After a random delay (1–3 seconds) the panel turns
green
Click as fast as you can once it turns green — your reaction time is shown in milliseconds
If you click while it's still red, the attempt is marked
too early
— stay patient
Play
5 attempts
in a row; your best and average are calculated
Average human reaction time is around
250 ms
— under 200 ms is excellent
Your best time is submitted to the leaderboard (lower is better)
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