Test your brain.

40 free online tests for reaction time, typing speed, memory, cognitive function, and more. No sign-up required.

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Brain Age Test

90 SEC

The quick brain test — 3 rounds, no sign-up needed.

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Brain Score

Take all 40 tests and get your overall cognitive score out of 1000. How smart are you?

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Stack Tower

FREE

Our free block-stacking game for Android — how high can you build?

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Reflex(7)

Speed of motor and perceptual response

Reaction Time

How fast can you click after the screen changes color?

Average: 250ms

Typing Speed

How many words can you type per minute accurately?

Average: 40 WPM

Aim Trainer

Click 30 targets as fast as you can. Train your mouse accuracy.

Average: 600ms/target

Click Speed (CPS)

How many clicks can you do in 5 seconds?

Average: 6.5 CPS

Hand-Eye Coordination

Click a moving target that bounces around. Gets smaller and faster!

Average: 25 catches

Rhythm Timing

Listen to a beat pattern and tap it back. Test your sense of rhythm and timing accuracy.

Average: Level 5

Anticipation Timing

A ball vanishes before the finish line. Tap the moment you think it arrives.

Average: 150ms off

Memory(12)

Encoding, holding and recalling information

Chimp Test

Can you beat a chimpanzee? Click numbers in order from memory.

Chimps score: 9

Number Memory

How many digits can you remember after a brief flash?

Average: 7 digits

Visual Memory

Memorize a pattern of tiles and click them back. 3 lives.

Average: Level 7

Sequence Memory

Watch tiles light up in order, then repeat the pattern. Like Simon.

Average: Level 7

Reverse Memory

Digits flash one at a time. Type them back in REVERSE order.

Average: 5 digits

Number Speed

Numbers flash briefly — type them back before the clock runs out.

Average: 7 digits

Face Memory

Spot which emoji faces changed in the grid.

Tests observation

Digit Span

Digits flash one at a time. Type them back forward or backward.

Average: 7 forward

N-Back

See letters. Click 'Match' if current = N positions back. Levels up.

Average: Level 3

Audio Memory

Hear tones and repeat them. Like Simon but with audio. Turn on sound!

Average: Level 6

Color Memory

Watch colored circles flash in sequence and repeat the pattern.

Average: 5-6 colors

Math Memory

Equations flash briefly. Memorize and solve them. One mistake ends the test.

Average: 8 correct

Logic(5)

Reasoning, math and pattern inference

Math Speed

60-second mental math blitz. Addition, subtraction, multiplication -- difficulty adapts.

Score: 200+ is fast

Pattern Recognition

What comes next? Identify patterns in numbers, colors, shapes, and sizes.

Tests IQ reasoning

Number Comparison

Click the larger number as fast as you can. Tests numerical processing.

Average: 700ms

Mental Math Sprint

Count dots, estimate multiplication, compare quantities. Fast-paced mental math speed test.

Average: 1000

Dot Estimation

Dots flash for 1 second. How many were there? Tests number sense and subitizing.

Average: 75%

Attention(11)

Focus, impulse control and divided attention

Stroop Color Test

Color names in wrong ink colors. Pick the ink color, not the word.

Tests attention

Peripheral Reaction

Stare at the center dot and click targets in your side vision. Don't look away!

Average: 700ms

Color Match

Match the display color, not the word. A Stroop challenge.

Average: 85%

Focus Timer

Estimate exact time intervals without a clock.

Tests time sense

Emotion Recognition

Identify emoji emotions (happy, sad, angry, surprised, etc.) quickly.

Tests EQ

Trail Making

Connect circles in alternating order: 1-A-2-B-3-C... as fast as you can.

Average: 30s

Go/No-Go

Green = click fast. Red = DON'T click. Tests reaction time AND impulse control.

Average: 350ms

Visual Search

Find the odd one out in a grid. Tests attention and search speed.

Average: 2500ms

Divided Attention

Identify the center letter while locating a target in your side vision. UFOV-style.

Average: 180px

Dual Task

Track a moving dot AND count beeps. Tests divided attention and multitasking.

Average: 75%

Change Detection

A grid of colors flashes twice. One color changes. Click the changed circle.

Average: Level 4

Verbal(4)

Word recognition, reading and language

Verbal Memory

Words appear one at a time. Have you seen it before? SEEN or NEW.

Average: 30 words

Reading Speed

How fast do you read? WPM test with comprehension quiz -- speed without understanding doesn't count.

Average: 230 WPM

Word Speed

Type words as fast as you can. How many WPM can you hit?

Average: 40 WPM

Word Association

See a word, type the opposite as fast as you can. Tests verbal speed.

Average: 1200ms

Spatial(2)

Mental rotation and visuospatial reasoning

Color Blind Test

Can you see the hidden numbers? 12 Ishihara-style plates test your color vision.

8% of men affected

Spatial Rotation

Compare two block shapes. Are they the SAME (rotated) or DIFFERENT? Mental rotation test.

Average: 10/15