Simple Reaction Time Test

What to do: Click Start, then watch the box below. The moment it turns green, click it as fast as you can.

During the wait: The box will be red. Do not click while it is red. Only click when it turns green.

If you click too early, that trial will restart automatically.

30 trials in total. The test takes around 3 minutes.

First time taking this test? Your results may be a little slower than usual while you get used to it. Feel free to take it again and use the second set of results.

Your Results

Metric	Result

To save your results: Click the button below, then open your tracking spreadsheet and click on the next empty session column header. Press Ctrl+V (Windows) or Cmd+V (Mac) to paste. Your results will fill down the column automatically.

Copied! Now paste into your spreadsheet.

Built by Thomas D. Stoker — thomasdstoker.com/cognitive-testing
I'd genuinely love to know how you get on. Drop me a message via the contact page, leave a comment on the site, or find me on Facebook.

Simple Reaction Time Test | Version 0.004 | Created: 2026-04-01