Reaction Time Test
Measure in milliseconds how fast you react when the screen turns green.
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Frequently asked questions
What is a good reaction time?
Most people react to a visual stimulus in about 200–300 ms; under 200 ms is very fast.
What if I click too early?
The try is cancelled with a “Too soon!” warning and doesn't count towards the average.
Is Reaction Time Test free to use on Toolkoa?
Yes, the Reaction Time Test tool is 100% free, unlimited and requires no sign up or installation.
Are my files sent to any server when using Reaction Time Test?
No. Every operation on Toolkoa is processed privately and locally, directly in your own browser.
Do I need to install anything to use Reaction Time Test?
Nothing to install. Reaction Time Test runs in any modern desktop or mobile browser, and once the page has loaded you can keep using it without relying on the connection.