☰
FPS
--
100K
Presets
🌌
Galaxy
⛲
Fountain
🌀
Vortex
⚡
Storm
🌧
Rain
↺
Reset
Particles
100K
Gravity
0.5
Force Strength
800
Draw Mode
Attract
Repel
Emit
Clear Forces
Clear Emitters
Color Scheme
Interactions: OFF
Particles repel each other when close — may reduce FPS at high counts
WebGL: OFF
Zero-copy GPU rendering — 60fps at 1M particles
JS Mode: OFF
JS mode is dramatically slower above ~10K particles
Space
pause ·
R
reset ·
1-6
presets
Left-click
draw ·
Right-click
repel
ParticleSim
Million-particle physics sandbox
Click anywhere to interact
Rust/WASM · WebGL · 60fps
PAUSED
Press Space to resume