Speed
Test your reaction time, typing speed (WPM), aim precision and clicking speed with free online reflex tests. Compare your scores against millions worldwide.
Reaction Time Test
Free online reaction time test. How fast are your reflexes? Click when the screen turns green — 5 rounds, millisecond precision.
1 minTyping Speed Test
Free online typing speed test. Measure your WPM (words per minute) and accuracy in 60 seconds.
1 minAim Trainer
Free online aim trainer. Click 30 targets as fast as you can — measure your mouse speed and precision.
1 minClick Speed Test
How fast can you click? Measure your clicks per second (CPS) and compare your speed.
1 minGo/No-Go Test
Test your impulse control. Click on green, don't click on red. Measures attention and inhibition.
2-3 minQuick Match
Match or different? Decide quickly when symbols flash. Tests working memory and reaction speed.
2-3 minChoice Reaction Time
Press left or right to match where the stimulus appears. Tests decision speed and accuracy.
2-3 minSpeed and reaction tests measure how quickly your brain processes information and triggers motor responses. These tests assess fundamental cognitive processing speed, which underlies performance in sports, gaming, driving, and many everyday activities.
Reaction time is influenced by age, sleep, alertness, and practice. Regular testing helps you track your baseline and understand how lifestyle factors affect your cognitive processing speed.
FAQ
Can I improve my reaction time?
Yes. Reaction time improves with practice, adequate sleep, regular exercise, and proper nutrition. Gamers and athletes often show 20-50ms improvements after dedicated training over several weeks.
What is the difference between simple and choice reaction time?
Simple reaction time has one stimulus and one response (click when green). Choice reaction time has multiple stimuli requiring different responses (press left or right). Choice reaction involves decision-making and is typically 50-100ms slower.
Does caffeine improve reaction time?
Yes, moderately. Caffeine blocks adenosine receptors, reducing drowsiness and improving alertness. Studies show 5-10% improvements in reaction time with moderate caffeine intake, though effects vary by individual.