Measure. Improve. Repeat.
Cognitive performance platform. Measure your reaction time, memory, and focus, then track your personal best as you improve.
Tests
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Cost
Free
Click targets as fast and accurately as possible. Precision under pressure.
Remember and repeat increasingly complex sequences. How long can you go?
Measure how fast you react to visual stimuli. Click when the screen changes color.
15 Cognitive Tests
Each test measures a different aspect of cognitive performance. Master all 15 to unlock your complete mental profile.
And 9 more cognitive tests to explore...
Explore All TestsRetention Psychology
BrainRivals uses psychological retention loops to transform every interaction into an unfinished narrative that keeps you coming back.
See exactly how close you are to your next personal best or percentile jump.
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Science-backed guides on reaction time, memory, and cognitive performance.
Brain fog is one of the most reported cognitive complaints in adults, but it's not a disease. It's a signal — and once you isolate the cause, the fix is usually straightforward.
Most adults type at 38–45 WPM. With four weeks of structured practice, getting to 70+ WPM is realistic for almost anyone willing to fix the bad habits first.
Forgetting is rarely a sign of memory loss. Most everyday forgetfulness comes from how the memory was formed, not from how it's stored.
Eleven cognitive tests across reaction, memory, precision, and perception. Track every personal best as you improve.
We track your personal best per test and your daily streak. No ranks, no global score, no pressure — just your trajectory.
Every test runs in seconds. Sign in once and your history follows you across browsers and devices.