Click anywhere to start. This is a simple tool to measure your reaction time. The average (median) reaction time is 273 milliseconds, according to the data collected so far. In addition to measuring …

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.

During the Reaction Time Test, you'll need to click as quickly as possible when the color changes from red to green. The test measures the time between the color change and your click, providing instant …

Online reaction time test. Click as soon as the field turns green. Average and best time, attempts, CSV export, and built‑in self‑tests.

Discover your speed, enjoy reflex speed challenges, and compare your results to the average human reaction time. Perfect for fun and skill improvement—try now for free!

Challenge your reaction speed with our free, scientifically-designed tests. Measure millisecond response times, track improvements, and enhance your cognitive performance.

Test your reaction time online for free. Measure your response speed with our professional reaction time test. Track five rounds average, best score and rank to improve reflexes.

This Reaction Time Test is more than just a game — it’s a fun and insightful way to explore how your brain and body work together. Try it again later, compare results, and even challenge your friends to …

Test your reaction time with our free reaction speed tester. Measure how fast you react to visual stimuli and improve your reflexes for gaming.

Tap/click when you're ready to race, then tap again when the lights go out.