FREE REFLEX TEST
Reaction Time Test
Click the instant the screen turns green and see how fast your reflexes really are.
Best Ever
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Last
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Average (last 0)
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Why Use Our Reaction Time Test?
True Reflex Measurement
Uses precise browser timing to measure the exact milliseconds between the screen turning green and your click.
Catches False Starts
Click too early and it tells you immediately instead of giving you an unfairly fast time.
Random Delay Every Round
The wait time before green varies each round, so you can't anticipate or game the timing.
Best and Average Tracked
See your best time ever alongside your average over your last 10 attempts.
Best Time Saved
Your fastest reaction time is saved on this device across visits.
100% Private
Everything runs in your browser. Nothing is ever sent to a server.
Frequently Asked Questions
How does it measure my reaction time?
It records the precise moment the screen turns green and the precise moment you click, then shows the difference in milliseconds.
What happens if I click too early?
It's marked as a false start and you try again - early clicks don't count toward your time.
What's a good reaction time?
Most people fall between 200 and 300 milliseconds. Under 200ms is exceptionally fast.
Is my best time saved?
Yes. Your fastest reaction time is saved in your browser's local storage.
Is this free?
Yes. It's free to use with no sign-up.
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