Test Your Brain.
Beat Your Best.
Free cognitive games: reaction time, memory, aim training and more. No signup. Play instantly.
🧠 Brain Games
Cognitive tests that benchmark your mental speed and memory.
Reaction Time
How fast can you click when the screen turns green?
Number Memory
See and remember the longest number you can.
Aim Trainer
Click 30 targets as fast as you can. Improve your aim.
Sequence Memory
Remember and repeat the flashing pattern. Like Simon Says.
Math Sprint
Answer as many maths questions as you can in 60 seconds.
Stroop Test
Click the ink colour of each word. Harder than it sounds.
Visual Memory
Remember which squares flash on a grid. Gets harder each level.
Typing Speed
How many words per minute can you type in 60 seconds?
Chimp Test
Numbers flash then disappear. Click them in order. Chimps beat most humans.
Puzzle Games
Daily Sudoku and classic tile puzzles.
More to Play
Classic games, daily challenges and puzzle collections.
Cognitive Science & Tips
Evidence-based articles on reaction time, memory and brain training.
Average Human Reaction Time: What's Normal and How Do You Compare?
273ms is the global median. See how age, sleep and practice shift the numbers.
Read article → Reaction TimeHow to Improve Your Reaction Time: Science-Backed Tips
Sleep is the biggest lever. Aim training is the most specific. Evidence-based breakdown.
Read article → ResearchDoes Brain Training Actually Work? The Honest Science in 2026
75 neuroscientists, the FTC, and what the research actually says about brain training apps.
Read article →