Reaction Time Test: The simple, accurate online reaction time tester.

Improve your reaction time with our reaction time test. Measure your response speed and compare it with others. Take the test now on our website.

Take this simple test, and we’ll gauge your age based on your reaction time.

How fast are your reflexes? Test your reaction time, cognitive speed, and memory with free online games like the Stroop Effect and Simon. No download needed.

On AimTrainer.io, reflex tests simulate real-time gaming scenarios to sharpen your reaction speed. The platform uses interactive exercises, such as target clicking and speed drills, to help …

Test your reaction time by stopping the clock at the target time! Compare your reactions to animals and other humans.

Test your reflexes by clicking when the screen changes color. Measures your neural response speed in milliseconds. 🏆 Want to track your progress? The Reaction Time game trains your …

Nov 10, 2025 · Feel the adrenaline of an F1 race start. React instantly to the flashing lights, measure your response time to the millisecond,and climb the global leaderboard to prove you …

Take our free online reaction time test and reaction speed test. Scientific reaction test with 6 levels to measure and improve your reflexes, hand-eye coordination, and cognitive speed.

Play Reaction Time Test. Test your reaction time.