Spacetime in Your Browser: A General Relativity Sandbox Built with BabylonJS Drop planets onto a deformable spacetime grid and watch gravity warp the mesh in real time. Built with BabylonJS and Ammo.js physics, Hitesh Sahu's simulation turns the rubber-sheet analogy into something you can actually play with. Collision sounds included.
Galaxy Sim: Real-Time N-Body Galaxy Formation in WebGL Watch 20,000 particles collapse from random gas clouds into a spinning spiral galaxy, all running in your browser. The result is quietly mesmerizing.
WebHeat: GPU-Powered Thermal Simulation for Any STL File A high school senior learned Newton's law of cooling in class, then built a full thermal simulation in the browser. Drop in any STL, watch heat propagate through voxelized geometry on the GPU. WebGPU compute shaders, React frontend, and a useRef trick that keeps it all from falling apart.
Party: A WebGPU Particle Physics Playground Thousands of particles swarm and collide with real physics, all running on WebGPU compute shaders. Party lets you tweak gravity, forces, and constraints live. It's part demo, part instrument.
WebGL Fluid Simulation by Pavel Dobryakov A GPU-powered Navier-Stokes fluid solver running entirely in the browser. Swipe to create swirling, colorful flows with bloom effects, vorticity controls, and real-time interactivity. Works on mobile too.
Realistic Physics Simulations in the Browser Dive into saharan's impressive collection of browser-based physics simulations featuring realistic water droplets with WebAssembly SIMD, GPGPU-powered fluffy balls, coupled cloth-fluid dynamics, and more. All built with Haxe and open-sourced on GitHub for anyone curious about computational physics.
Marble Madness-Inspired Game for Netlify Paris studio Little Workshop built a Marble Madness-inspired WebGL experience to celebrate Netlify's 5 million developers. Using Three.js, Rapier physics, and a Unity-to-browser pipeline, two devs created this award-winning browser game in 8 weeks.
Singularity: A Black Hole Simulation A fully raymarched black hole in your browser (glowing accretion disk, gravitational lensing, radiation noise) all built with Three.js, TSL, and WebGPU. No geometry, just math. A cosmic shader experiment pushing real-time web graphics to the edge.
Medusae: A Soft Body Jellyfish Simulation Medusae is a browser-native jellyfish built with Three.js, GLSL, and a lean constraint solver. Ash Weeks pairs fixed-timestep physics with GPU interpolation and audio-reactive shaders to deliver lifelike, 60-fps motion.
