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Reaction Time Test

Wait for the box to turn green, then click as fast as you can. Your reaction time in milliseconds is shown — try five rounds and see your average. Clicking too early restarts the round.

Press Start, then wait for green...
—Last try
—Best
—Average

How to use

  1. Click Start and wait.
  2. When the box turns green, click it fast.
  3. See your time in milliseconds.

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