Reactdle

How fast
are you?

Five quick reaction tests. Everyone gets the same ones today, and you get one shot.

Takes about two minutes. Mistakes cost time, not the run.

0ms

Average reaction time

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A new set of tests every day at midnight Eastern. Your times stay in this browser. The first time you start a test each day, the page asks this site's server for a file called /played so the day's players can be counted. No cookie, no identifier, nothing about your times.

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How to play

Five reaction tests, one after another. Each one gives you a time in milliseconds, and your score is the average of all five. Lower is better.

Everyone gets the same delays, targets, word and question each day. You get one run a day. Leave or reload in the middle of a test and it's scored at its time limit.

Each test is rated against its own par: sharp, steady or sluggish. That way a slow trivia answer doesn't bury a fast reflex.

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