Reaction Time Test

I built this reaction time test as the starting point for PickTests. The idea is simple: wait for the screen to turn green, then respond as quickly as possible. Your reaction time is displayed in milliseconds. You can take a single test or complete five rounds to see your average, best result, and how much your responses vary between attempts. One thing I paid attention to was keeping the interaction straightforward. Clicking too early shouldn't count as a valid result, and the feedback should make it clear when to try again. The test works with mouse, keyboard, and touch input. Recent results are saved locally in your browser, so you can come back and compare your performance. It's free, with no registration required.