This free reaction time test runs in clear 5-trial sets. Wait for the panel to turn green, click as fast as you can, and after five valid trials you get a full summary with average, best, and slowest times.
How to play
- 1Click the panel to start a 5-trial set.
- 2Wait until the color changes to green — do not click early.
- 3Click or tap immediately when it turns green.
- 4Finish all 5 valid trials to unlock your average and breakdown.
Tips
- • Focus on the panel instead of your finger or mouse.
- • False starts do not count — that trial simply restarts.
- • Compare set averages rather than a single lucky click.
