Playground & Simulations

Interactive physics, visual experiments, and time wasters to relax. Everything runs 100% locally in your browser.

Simulate emergent swarm intelligence and collective flocking behaviors (separation, alignment, cohesion, predators) in real-time.

Interactive cellular automaton. Draw living cells, trigger evolution, explore famous patterns with neon palettes.

Explore deterministic chaos and the butterfly effect with interactive multi-pendulum swarms and hypnotic rainbow ribbon trails.

Satisfying endless bubble wrap with procedural sound synthesis and haptic pop physics.

Interactive particle sandbox. Mix sand, water, fire, wood, oil, lava, acid and gunpowder with real-time physics.

Real-time Navier-Stokes fluid dynamics. Drag your mouse to swirl neon dye, create vortices, and watch mesmerizing smoke diffusion.

Create ambient melodic loops with a 16x16 pentatonic step sequencer. Pure harmonic sound synthesis in your browser.