Do What You Want

Cellular Automata

Conway's Game of Life and Langton's Ant. Click cells to draw, watch emergent complexity unfold from simple rules.

canvas simulation interactive

Run 1

Maze Generator

Recursive-backtracking DFS with animated generation, BFS shortest-path solver, and arrow-key navigation.

canvas algorithm playable

Run 2

Fractal Explorer

Mandelbrot set with smooth coloring, scroll-to-zoom, drag-to-pan, and live Julia set preview on hover.

canvas math generative

Run 3

Dungeon Adventure

Procedurally generated 18-room dungeon. Find the Crown and escape. Combat, items, a minimap, command history.

text adventure procedural rpg

Run 4

Step Sequencer

16-step drum machine and melodic sequencer. Kick, snare, hi-hat, bass, melody, pad. Five scales, spectrum visualizer.

web audio music generative

Run 6

L-System Plants

Lindenmayer system fractal generator. Ferns, trees, snowflakes, dragon curve, Hilbert curve. Animated growth.

canvas fractal generative

Run 7

Particle Physics

Click to spawn particles across 6 modes: gravity, attract, repel, orbit, fluid simulation, and fireworks.

canvas physics interactive

Run 8

Terrain Generator

Fractal Brownian Motion heightmaps. Islands, continents, mountains, canyons. Hillshading, contour lines, 5 palettes.

canvas noise procedural

Run 9

Reaction Diffusion

Gray-Scott model on the GPU. Coral, leopard spots, stripes, worms, mitosis. Click to seed chemicals. WebGL.

webgl simulation generative

Run 10

Voronoi / Lloyd

WebGL Voronoi cells with animated Lloyd's relaxation toward centroidal equilibrium. Delaunay triangulation overlay. Click to add seeds.

webgl geometry interactive

Run 11

Type or Die

Words fall from the sky. Type them before they hit the bottom. Combo multiplier, 4 difficulty tiers, Web Audio feedback, high score.

game typing web audio

Run 12

Orbital Clock

Seven concentric orbital rings: seconds, minutes, hours, day, week, month, year. Glowing trails, sweep arcs, 5 themes, breathing mode.

canvas time generative

Run 13

Synthesizer

Playable keyboard with 7 voices: piano, organ, lead, pad, bass, bell, pluck. Reverb, delay, chord detection. Computer keyboard + record/play.

web audio instrument interactive

Run 14

Network Graph

Force-directed layout. 9 topologies: random, ring, grid, tree, small-world, scale-free, clique, path, bipartite. Drag to connect nodes.

canvas graph theory interactive

Run 15

Raymarcher

WebGL SDF raymarcher. Metaballs, Menger sponge, alien terrain, infinite tunnel, Cornell box. Soft shadows, AO, reflections, fog.

webgl 3d raymarching

Run 16

Sorting Algorithms

8 algorithms visualized: Bubble, Selection, Insertion, Shell, Merge, Quick, Heap, Radix. Tonal audio, step mode, 5 input patterns.

canvas algorithms educational

Run 17

Flow Field

Thousands of particles tracing vector fields. 7 field types: Perlin noise, curl, radial, circular, saddle, wave, multi-vortex. 6 palettes. Click to spawn bursts.

canvas particles generative

Run 18

Breakout

Classic brick-breaker. 5 levels with escalating layouts, bomb bricks, hard bricks, indestructible walls. Powerups: wide paddle, multi-ball, slow, laser. Web Audio sfx.

game canvas web audio

Run 19

Cellular Automata

6 rule sets: Brian's Brain, Seeds, Day & Night, Cyclic (3 & 5 state), Wireworld. Draw cells, load presets, adjust speed & zoom. 5 color palettes.

canvas automata generative

Run 20

3D Wireframe

8 shapes: Cube, Tetrahedron, Octahedron, Icosahedron, Dodecahedron, Torus, Sphere, Trefoil Knot. Backface culling, painter's algorithm, drag to rotate, scroll to zoom.

canvas 3d math

Run 21

Snake

Classic Snake with smooth interpolated movement. Powerup foods: speed boost, ghost (pass walls), magnet (attract nearby food). Web Audio chiptune sfx.

game canvas web audio

Run 22

Audio Visualizer

5 modes: Waveform, Spectrum, Radial, Spectrogram, Lissajous. Built-in synth sources (drone, arpeggio, chord, bass, noise) or live microphone input. 4 palettes.

web audio canvas interactive

Run 24

Double Pendulum

Chaos theory visualized. RK4 integration, up to 20 pendulums with near-identical initial conditions diverging exponentially. Fading trails, phase portrait, energy readout.

physics chaos canvas

Run 23

Fluid Ink

WebGL2 Navier-Stokes fluid simulation. Semi-Lagrangian advection, pressure Jacobi solver, vorticity confinement. Rainbow HSL dye on mouse drag. 9 GLSL shader programs, ping-pong FBOs.

webgl physics generative

Run 25

Particle Life

Emergent life from simple rules. N species with an asymmetric attraction/repulsion matrix produce swarming, clustering, and predator-prey dynamics. Spatial hash for O(n) neighbor search. Drag to scatter.

simulation emergent canvas

Run 26

L-System Explorer

10 classic Lindenmayer systems drawn with animated turtle graphics: Koch Snowflake, Dragon Curve, Fractal Plant, Hilbert Curve, Gosper Curve, Sierpinski, and more. Adjustable angle, iterations, color palette, glow.

fractal generative canvas

Run 27

Pixel Font Editor

Bitmap font editor with 6 grid sizes (5x7 to 16x16). Draw/line/rect/fill tools, shift/mirror/rotate, undo, copy/paste between glyphs, built-in 5x7 preset font (ASCII 32-126), live text preview, export to JSON/PNG.

tool creative editor

Run 73

Synth

ADSR synthesizer with 2 oscillators, 8 presets (pad, bass, lead, pluck, organ, strings, bell), lowpass/highpass/bandpass/notch filter, reverb, delay, real-time waveform and spectrum display, 2-octave piano keyboard, polyphonic.

audio music tool

Run 72

Tetris

Classic Tetris with SRS rotation, wall kicks, ghost piece, hold queue, next preview (4 pieces), 7-bag randomizer, lock delay, level progression, scoring, soft/hard drop, touch controls, pause.

game classic arcade

Run 71

Minesweeper

Classic Minesweeper with 4 difficulties (9×9 to 30×20). Flood-fill reveal, chord clicking, flag/question marks, safe first click, timer, mine counter, win rate tracking, best times.

game puzzle classic

Run 70

Isometric Builder

Voxel world builder with isometric projection. Place, remove, paint cubes on a 16×16×16 grid. 8 materials, layer-by-layer editing, pan view, 4 presets (flat, pyramid, stairs, castle). PNG export.

3D builder canvas

Run 69

DVD Bounce

Bouncing DVD logo screensaver. Multiple logos, 5 shapes (text, disc, box, diamond, star), custom text, trail mode, glow, corner hit tracking with flash effect. The legendary corner hit awaits.

animation fun canvas

Run 68

2048

Slide and merge number tiles to reach 2048. Grid sizes 3×3 to 6×6, goals from 512 to 8192. Tile appear/merge animations, undo, score tracking, swipe support. Continue playing after winning.

game puzzle strategy

Run 67

Wordle

Word guessing game with 4-7 letter words, hard mode, custom word lists. Tile flip animations, color-coded keyboard, win streaks, stats tracking. Built-in dictionaries with 200+ words per length.

game word puzzle

Run 66

Emoji Slots

5-reel emoji slot machine with 5 themes (fruit, animals, space, food, gems). Staggered reel stops, pay table (pair through jackpot), auto-spin, balance tracking, Web Audio sound effects.

game emoji animation

Run 65

Rope Physics

Verlet integration rope/chain simulation. 5 presets: rope, chain, cloth grid, bridge, pendulums. Drag nodes, right-click to cut links, wind force, tension coloring, adjustable gravity/stiffness.

physics simulation canvas

Run 64

Connect Four

Classic Connect Four with minimax AI (alpha-beta pruning). 4 difficulty levels, PvP, PvAI, AI vs AI modes. Animated piece drops, win highlighting, undo, move history, score tracking.

game AI strategy

Run 63

Matrix Rain

Digital rain animation with falling character streams. 6 character sets (katakana, binary, hex), 7 color schemes, adjustable speed/density/font, character mutation glitch effect, text overlay.

animation visual canvas

Run 62

Color Match

Memory card game with hex colors. Flip cards to find matching color pairs. 4 grid sizes, 3 modes: match colors, match hex codes, match complements. Tracks moves, time, efficiency, best scores.

game color memory

Run 61

Periodic Table

Interactive periodic table of all 118 elements. Color by category, phase, block, or electronegativity. Temperature slider shows phase changes. Search, click for detailed element properties.

science reference interactive

Run 60

Magnetic Field

Interactive magnetic field line visualizer. Place N/S poles, drag to rearrange. Field lines, arrow grid, potential heatmap views. Animated flow dots, 3 presets (dipole, quadrupole, parallel).

physics visualization canvas

Run 59

Falling Sand

Powder simulation with 10 materials: sand, water, stone, wood, fire, oil, acid, steam, lava, plant. Materials interact — fire burns wood, lava melts water to steam, acid dissolves, plants grow.

simulation physics canvas

Run 58

Kaleidoscope

Rotational symmetry drawing tool with 2–24 segments, mirror mode, 5 brush types (round, square, star, diamond, spray), 6 color palettes, glow effect, fade mode, undo history.

art drawing canvas

Run 57

Pathfinding

A*, Dijkstra, BFS, DFS, Greedy pathfinding on a grid with animated search visualization. Draw walls, weighted cells, maze generation, diagonal movement.

algorithm visualization canvas

Run 56

Network Graph

Force-directed graph editor with Coulomb repulsion and Hooke spring attraction. Add/connect/drag nodes, pan/zoom, degree display, 6 presets including Petersen graph.

tool graph canvas

Run 55

Raycast Shadows

2D ray casting visibility with soft radial lighting, wall drawing, multi-light support. Cast rays toward segment endpoints for accurate shadow polygons. 4 presets.

simulation lighting canvas

Run 54

Fourier Epicycles

Discrete Fourier Transform visualized as rotating epicycles. 9 shapes including custom drawing, amplitude spectrum, waveform display, up to 200 harmonics.

math visualization canvas

Run 53

Physics Sandbox

Rigid body physics with circles and boxes, spring constraints, collision detection with impulse resolution, gravity, bounce, friction. 4 presets including Newton's cradle.

simulation physics canvas

Run 52

Base Converter

Binary/octal/decimal/hex converter with clickable bit grid, bitwise operations (shift, AND, OR, XOR, NOT), byte swap, popcount, IEEE 754 float display.

tool binary dev

Run 51

Diff Viewer

Side-by-side and unified text diff with LCS algorithm, character-level inline highlighting, minimap, chunk navigation, context control, synchronized scroll.

tool diff dev

Run 50

Gradient Builder

CSS gradient builder with draggable color stops. Linear, radial, conic types. Per-stop opacity, 12 presets, reverse/distribute, random, copy CSS output.

tool css design

Run 49

JSON Formatter

JSON formatter with collapsible tree view, syntax highlighting, path navigation, search, sort keys, minify. Copy path on click, export formatted or minified.

tool json dev

Run 48

Color Palette

Color palette generator with 7 harmony rules: complementary, analogous, triadic, split-complementary, tetradic, monochromatic, random. Color wheel, WCAG contrast, CSS export, PNG download.

tool color design

Run 47

Markdown Editor

Real-time markdown editor with live preview. Custom parser handles headings, lists, tables, code blocks, task lists, blockquotes. 4 themes, toolbar, sync scroll, export to HTML/MD.

tool editor markdown

Run 46

Regex Visualizer

Interactive regex tester with real-time highlighting, railroad-style syntax diagram, match details with capture groups. 10 presets, replace mode, 5 flags.

tool regex canvas

Run 45

Tower Defense

Classic tower defense with procedural winding path. 4 tower types: Arrow, Cannon (splash), Frost (slow), Laser (beam). Wave-based enemies, gold economy, 3 speed settings.

game strategy canvas

Run 44

Spirograph

Animated curve drawing with 5 modes: Spirograph (hypotrochoid), Harmonograph (damped pendulum), Lissajous, Rose Curve, Maurer Rose. 7 color schemes, glow effect, 8 presets, PNG export.

math generative canvas

Run 43

Wallpaper Generator

Procedural noise wallpaper generator. 8 patterns (Perlin, turbulence, ridged, marble, wood, Voronoi, domain warp, terrain) × 8 palettes. Animate, export full-res PNG, adjustable scale/octaves/contrast.

generative noise canvas

Run 42

Turing Machine

Visual Turing machine simulator with infinite tape, head animation, transition table highlighting, execution log. 6 programs: Binary Increment, Palindrome, Unary Add, Invert, Busy Beaver 3, Duplicate.

computation simulation educational

Run 41

Platformer

Procedurally generated infinite platformer. Seeded RNG levels with gaps, spikes, floating platforms, coins, enemies. Stomp enemies, coyote time + jump buffering, parallax stars, 4 themes, touch controls.

game procedural canvas

Run 40

Audio Visualizer

FFT-based music visualizer with 6 modes: Bars, Waveform, Circular, Spectrogram, Particles, Mirror. Mic input or built-in chord synth with bass + hi-hat. 5 palettes, gain/smoothing/fade controls.

web audio visualization canvas

Run 39

Boids Flocking

Craig Reynolds boid flocking simulation. Separation, alignment, cohesion with spatial grid acceleration. Predators, mouse attraction, 6 presets (Classic, Tight Swarm, Loose Drift, Predator, Two Species, Tornado).

simulation emergent canvas

Run 38

Pixel Art Editor

Full-featured pixel art editor with pen, eraser, fill, line, rect, circle tools. Bresenham line algorithm, midpoint circle, flood fill. Mirror mode, undo/redo, 32-color palette, export PNG, 4 canvas sizes.

creative editor canvas

Run 37

Poetry Engine

Context-free grammar generative poetry. 6 forms (free verse, haiku, tanka, quatrain, couplets, concrete), 6 themes (nature, cosmos, city, ocean, time, dreams). Animated reveal, grammar sidebar, auto mode.

generative text interactive

Run 36

Elementary Automata

All 256 Wolfram elementary cellular automata. Editable rule bits with visual neighborhood display. 6 initial conditions, 5 color palettes, 10 famous rules. Arrow keys to browse rules, infinite scrolling.

cellular automata generative canvas

Run 35

Logic Circuit

Visual logic gate simulator. 7 gate types (AND, OR, NOT, NAND, NOR, XOR, XNOR) plus I/O nodes. Drag pins to wire, click inputs to toggle. 4 presets: Half Adder, SR Latch, 2-bit Comparator, Multiplexer.

simulation logic interactive

Run 34

Hex Conquest

Turn-based hex territory strategy game vs AI. Claim adjacent hexes, reinforce positions, attack enemies. Strength dots, 3 AI levels, 3 board sizes, Lloyd-style expansion with Bowyer-Watson Delaunay under the hood.

game strategy canvas

Run 33

Wave Simulator

2D wave equation finite difference simulation. Pulse, continuous source, double slit, and wall-drawing modes. 4 palettes, reflecting/absorbing boundaries, adjustable speed and damping.

physics simulation canvas

Run 32

Gravity Sandbox

N-body gravity simulation with Velocity Verlet integration. Click to spawn, shift-drag to launch, scroll to set mass. Body merging, fading trails, 5 presets: Binary Star, Solar System, Figure-8, Galaxy, Random.

physics simulation canvas

Run 31

Fractal Explorer

WebGL2 Mandelbrot + Julia set dual viewer. GPU fragment shader with smooth (Hubbard-Douady) coloring. Hover Mandelbrot to update Julia c in real time. Scroll to zoom, drag to pan, 5 palettes, 6 presets.

webgl math generative

Run 30

Step Sequencer

16-step drum machine + melodic synth. 8 tracks: Kick, Snare, Clap, HH, Tom, Bass, Lead. Web Audio synthesis, swing, per-track volume, 4 presets, randomizer. Click steps, space to play.

web audio music interactive

Run 29

Dungeon

Procedural BSP dungeon crawler. Fog of war with Bresenham line-of-sight, animated torch glows, pillars, chests, and stairs to infinite floors. 3 themes: Dungeon, Crypt, Temple.

game procedural canvas

Run 28