Brain Tests
Quick tests for your reflexes, memory and speed. Most take under a minute — beat your best, then challenge a friend.
-
Reaction Time Test
Measure your reaction time in milliseconds. Tap when the screen turns green, get your 5-round average and see how you compare.
Are your reflexes above average? → -
Chimp Test
Remember where the numbers were and click them in order. Each level adds a number — see if your memory can beat a chimpanzee.
Prove you're smarter than a chimp → -
Typing Speed Test
Test your typing speed and accuracy. Get your WPM, CPM, and error count with a live WPM chart. Three modes: time, words, and quote.
How fast can you really type? → -
Click Speed Test
Check how many clicks per second you can do. Pick 1, 5, 10, 30 or 60 seconds and get your CPS score and personal best.
How many clicks in 5 seconds? → -
Aim Trainer
Hit 30 targets as fast as you can. Get your average time per target, accuracy and personal best — great warm-up for FPS games.
How fast can you hit 30 targets? → -
Color Flood
Tap colors to flood the board from the corner and fill it with one color in as few moves as you can. Levels, stars and a new daily puzzle.
Can you hit the target? →
What do these tests measure?
- Reflexes
- The reaction time test measures how quickly you respond to a visual signal. Most people average 200–300 ms.
- Speed and precision
- The click speed test and aim trainer measure how fast and accurately you can use a mouse or touchscreen.
- Working memory
- The chimp test measures how many positions you can hold in short-term memory at once.
- Planning
- Color Flood trains forward planning: you work out which colors to flood, and in what order, to fill the board in the fewest moves.
- Typing
- The typing speed test measures words per minute and accuracy, a key everyday computer skill.
Frequently asked questions
Are these brain tests free?
Yes. Every test is free and runs in your browser on desktop and mobile.
Can I challenge a friend?
Yes. After a test, tap "Challenge a friend" to share a link. Your friend plays with the same settings and layout, and sees whether they beat your score.
Are my scores saved?
Your personal bests are saved in your browser so you can track your progress. They are never sent to a server.
Can I improve my scores?
Yes. Good sleep, a short warm-up and regular practice all help. Scores also vary with your device, so compare results on the same screen and mouse.