Solo

Reaction Timer✦

Wait for green. Then go. Measure your response with a quick timing challenge.

How to play Reaction TimerStep-by-step · Controls · Rules

Your goalMeasure how quickly you respond after the pad turns green.

  1. Tap the pad to begin a trial.
  2. Wait without tapping while the game prepares the signal.
  3. As soon as the pad turns green, tap it again to see your time.

ControlsTap or click the large reaction pad.

Rules & scoringTapping before green is a false start and cancels the trial. Results include browser, input and display latency; compare practice attempts on the same device.

Choose New game to restart. Your active board resets on refresh.

Setting up your next round…

Make it your kind of break.

Use the controls above to start a fresh round. Your device handles the game; no account, payment or download is needed. Rules and supported modes are shown in the game itself.

Progress rewards belong to this browser. Closing or refreshing a page starts a fresh game unless a game explicitly offers a saved state.

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