Reaction Time Tester

Measure your visual reaction time.

Reaction Time Tester

Don't click yet...

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Features

  • Measure visual reaction time
  • Millisecond precision
  • Average score tracking
  • Simple visual interface

How to Use

  1. Click the grey area to start.
  2. Wait for the box to turn GREEN.
  3. Click as quickly as possible when it turns green.
  4. See your reaction time in milliseconds.