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Free Brain & Cognitive Tests
51 free brain tests covering reaction time, memory, attention, reasoning, spatial ability, language and perception. Every test runs in your browser, needs no account, and gives you an instant, scientifically inspired result.
About these brain tests
The cognitive tests on this page measure the mental skills you use every day: how fast you react, how much you can hold in working memory, how well you ignore distractions, how quickly you spot patterns and calculate, and how precisely you read the world around you. Each test is freely adapted from research paradigms used in experimental psychology and cognitive neuroscience, such as the Stroop effect, flanker interference, digit span and the Simon task.
No sign-up, no tracking, no PDF reports to buy. Results appear instantly on screen and are stored nowhere. They are for personal insight and fun, not for medical or clinical diagnosis. Pick any test below to begin — most take under two minutes.