Reaction Time Test
Measure how fast you react when the screen turns green.
Play now →Mini games & handy tools, right in your browser
Free brain-training games, reaction tests, calculators and generators. No install, no sign-up, no uploads — everything runs locally on your device.
Brain & skill games 26
Click Speed Test
Count your clicks per second (CPS) in a 10-second sprint.
Play now →Spacebar Counter
Hit the spacebar as fast as you can and track every hit.
Play now →Right-Click Speed Test
Time your right-clicking speed over a chosen interval.
Play now →Sequence Memory
Repeat an ever-growing pattern of flashing tiles.
Play now →Number Sequence Memory
Memorize and recall growing sequences of numbers.
Play now →N-Back Memory
Classic working-memory drill: is it the same as N steps ago?
Play now →Schulte Grid
Find numbers 1–25 in order as fast as you can.
Play now →Stroop Test
Name the ink color, not the word — a classic attention test.
Play now →Color Shade Test
Spot the odd tile among near-identical shades.
Play now →Dynamic Color Test
Catch the odd changing tile before it blends away.
Play now →Visual Tracking
Follow moving targets and test your visual tracking skill.
Play now →Dynamic Visual Acuity
Read shrinking, moving symbols before they blur past.
Play now →Time Perception Test
Estimate exact seconds without a clock.
Play now →Coordinate Drift
Hold your aim on a drifting point as control gets harder.
Play now →Sliding Number Puzzle
Classic 15-puzzle: sort the numbers by sliding tiles.
Play now →Sudoku
Play unlimited sudoku with hints and four difficulties.
Play now →Water Sort Puzzle
Pour liquids between bottles until each holds one color.
Play now →2048
Merge tiles, chase 2048, and beat your best score.
Play now →Lights Out
Switch off every light — each click flips its neighbors.
Play now →Matchstick Math
Move one matchstick to fix the equation.
Play now →Number Mirror
Type mirrored numbers before time runs out.
Play now →Mirror Rush
Quick-fire mirrored symbol judgments under time pressure.
Play now →Symmetry Blocks
Complete the symmetric pattern from memory.
Play now →Find the Different Word
Scan grids of words to find the odd one out.
Play now →Color Block Recall
Memorize the lit tiles and reproduce the pattern.
Play now →Handy tools 117
Health
BMI, calories, heart rate and body calculators
15 plannedLife
Age, loans, sizes and everyday lookups
14 plannedGenerators
QR codes, barcodes, passwords and random data
7 plannedDeveloper
Encoders, formatters, hashes, ciphers and port checks
24 plannedConverters & Math
Units, geometry and number converters
13 plannedText & Office
Case converters, symbols and text utilities
20 plannedImage
Resize, compress, crop and convert — all local
16 plannedJust for Fun
Lucky wheels, pickers and novelty tools
8 planned