Cognitive Tests
A test gives you a number in under a minute. Training changes that number over weeks. These are the tests — short, standardised, free, and no account required. Each one links to the Mind Dojo game that trains the same skill once you want the number to move.
One honest caveat up front: browser measurements include your display, input device and browser lag, so results are not comparable between websites or devices. Compare yourself to yourself, on the same hardware — that trend is real even when the absolute number is inflated.
Take a test now
Tests that are already games
For these constructs the Mind Dojo game itself is the instrument — it implements the classic paradigm directly, so there's no point shipping a thinner second copy. Each one measures you from the first run.
Mental Rotation Test
3D match-or-mirror judgment on polycube pairs.
Multiple Object Tracking Test
How many moving targets you can hold in attention.
Card Sorting Test
Set-shifting — adapting when a hidden rule changes.
Sequence Memory Test
How long an ordered sequence you can reproduce.
Divided Attention Test
Running two continuous tasks at once.
Why we don't show percentiles
Most test sites rank you against a distribution they never explain. We don't, because the number a browser measures is inflated by hardware we can't see — a percentile built on that would be invented precision dressed up as science. Instead, results are reported against figures from published research, with the papers cited, and the honest statement that the comparison that matters is you against your own past runs.