Reaction Time

Wait for green. Then catch the moment. Milliseconds · Best and average. Use the controls below, or return to the main game page for more games.

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How to play

  1. Start the test and wait for the target to turn green and say Tap now.
  2. Tap or activate the button after that signal. An early tap cancels the attempt.
  3. See your last, best and average times. These include browser and device delay and are for play, not medical measurement.

Original Joywisp player. Progress here lasts for this visit; this frame does not use a third-party service or account.