Wait for green, then click. Five tries, then your average.
What it's for
- Measure your reaction time to a colour change, in milliseconds
- Compare later attempts on the same device and input
We have checked Reaction Time Test 54 times since 20 Oct 2026, and it answered every time. Its visible text has not changed since we started watching.
What it does
The panel turns green and you click, tap, or press Space. Five valid attempts produce an average, a fastest time, and the gap between fastest and slowest, in milliseconds. An early click is a false start and is left out of the average. Results stay in this browser. The page says the score is recreational, not a diagnosis or a fitness assessment, and that the display, browser, and input method change the number. Compare attempts on the same device.
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Looking for something else?
What stands out
- Free
What we checked
App accessible
The last check reached a working page.
Page rendered
We opened this page in a browser and kept a picture. That is not the full route probe.
Screenshot kept
We captured a picture of the page.
Looked at by a person
A person last reviewed this listing.
- Looked
- 3
- Opened
- 12
- Checks
- 54
- Watching
- 0
3 browsers
12 browsers
54 checks
Nobody yet
Browsers on this site, not verified people.

Evidence
Each bar is one request we made- Checks
- 54
- Working · last 40
- 100%
- Median response
- 286ms
- Watching since
- 20 Oct 2026
Of the last 40 checks, 40 answered (100%); the latest was on . Median response 286 ms. Watching since .
Activity
Watching since- Last content change
- None seen yet
- Unchanged for
- 13 days
- Certificate expires
- in 64 days
What people say
No reviews yet.
Embed this status
For a README. It updates on every check.
[](https://itstillworks.app/verify/reaction-time-test)