SPC-14Special
Reaction Time Test
Click when the screen turns raspberry
SPC-14Result
Your data never leaves your device: this tool runs locally in the browser.
Reaction Time Test
Press Start, wait for the color to change — and click as fast as you can. The tool measures milliseconds and remembers your best. Average human visual reaction is about 250 ms.
Frequently asked questions
What counts as a good result?
Under 250 ms is great; fatigue and even your monitor affect the score.
Why can’t I click early?
An early click resets the attempt — otherwise guessing would win.