Test your reaction time! Click the box when it turns green.
Complete all tests to see your average score.
The Reaction Speed Tester is a fun and interactive tool designed to measure your reaction time. Simply click the box when it turns green to see how fast you can react!
This application uses advanced timing technology with performance.now() to provide
accurate millisecond-level measurements. Challenge yourself and see if you can achieve
the "Extremely Fast" rating (under 200ms)!
Features include multiple test modes, sound and vibration feedback, detailed statistics, and a beautiful dark/light theme switch.