WebGL · Three.js · GLSL · Pure JavaScript

3D Simulations
in the Browser

Physics · Nature · Mathematics · Astronomy
309+ simulations · 73 categories · no install needed

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Browse by Category

73 categories — from quantum physics to generative art

🔭
Space & Astronomy
Solar system, spiral galaxy, N-body gravity, binary stars, meteor shower
10+ simulations ⚡
Physics & Mechanics
Cloth, SPH fluid, waves, spring-mass, pendulum, magnetic field
10+ simulations 🌿
Nature & Climate
Tectonic plates, ocean, forest fire, mantle convection, terrain
8+ simulations 🧬
Biology & Life
Game of Life, ants, boids, predator-prey, neural networks, L-systems
12+ simulations 🌀
Chaos & Dynamics
Lorenz, Rössler, Van der Pol, double pendulum, bifurcation diagram
8+ simulations 🤖
Algorithms & AI
Pathfinding A*, sorting, maze generation, TSP, genetic algorithms
10+ simulations 📐
Mathematics & Fractals
Fractals, L-systems, Barnsley fern, Voronoi, random walk, Sierpiński
10+ simulations 🔷
Geometry & Architecture
Spirograph, Pythagoras tree, kaleidoscope, Lissajous curves
5 simulations ⚗️
Chemistry & Materials
Molecular dynamics, crystal growth, reaction-diffusion, Ising model
8+ simulations 🎵
Sound & Music
Chladni figures, Fourier transform, wave interference, wave equation
8+ simulations 🌐
Society & Economy
SIR epidemics, Schelling segregation, game theory, traffic flow
9+ simulations ⚛️
Quantum Physics
Schrödinger, double-slit experiment, hydrogen orbital, photoelectric effect
7+ simulations 🔌
Electromagnetism
Electric field lines, magnetic field, wave equation, photoelectric effect
5 simulations 🪨
Geology & Earth Science
Seismic waves, tectonic plates, terrain generation, mantle convection, carbon cycle
7 simulations 🌊
Fluid Dynamics
SPH fluid, ocean waves, Kármán vortex, atmosphere simulation
4 simulations 🌡️
Thermodynamics
Diffusion, Ising model, fire simulation, molecular kinetics
4 simulations 🔋
Energy & Thermodynamics
Nuclear fission, energy balance, molecular dynamics, thermal expansion
9 simulations 🧠
Neuroscience & Biophysics
Neural networks, cardiac action potential, protein folding, blood flow
6 simulations 💰
Economics & Social Systems
Game theory, Schelling segregation, traffic flow, city growth
7 simulations 🤖
AI & Machine Learning
Decision trees, reinforcement learning, self-organising maps, genetic algorithms
7 simulations
View all 73 categories →
Find Your Field

Browse by Profession

24 careers — from aerospace engineer to ecologist

🧪Scientist 👨‍💻Developer 👨‍🏫Teacher 🎓Student 👨‍⚕️Doctor 🏥Medical Technologist 👷Engineer ✈️Aerospace Engineer 🚗Automotive Engineer ⚡Electronics Engineer 🤖Robotics Engineer 🧬Biologist ⚗️Chemist 🔭Astrophysicist 🌊Oceanographer 🌍Ecologist 🎨Artist / Designer 🏗️Architect 💰Economist 🔐Cybersecurity 🏃Sports Scientist 📡Telecom Engineer 🌾Agronomist 🗺️GIS Analyst
Browse all 24 professions →
🎉 For Kids & Teens

Discover Science the Fun Way!

Simple and exciting simulations with clear explanations — no scary formulas

🟢 Ages 5–8 — Magical 🔵 Ages 8–11 — Explorer 🟣 Ages 11–14 — Researcher
🧬 Cells Come Alive 🔵 8–11 Conway's Game of Life 🐜 Ant Adventure 🟢 5–8 Ant Colony Simulation 🐦 Bird Flock Magic 🔵 8–11 Boids Flocking 🌌 Space Explorer 🔵 8–11 Spiral Galaxy 🪐 Planet Parade 🟢 5–8 Solar System 🎆 Fireworks Show 🟢 5–8 Particle Physics 🌈 Rainbow Science 🔵 8–11 Light & Optics 🎨 Math Art Studio 🟣 11–14 Spirograph 🫧 Bubble World 🟢 5–8 Fluid Simulation ⏳ Magic Sand 🟢 5–8 Sand Automaton 🦋 Butterfly Effect 🟣 11–14 Chaos Theory 🌀 Chaos Pendulum 🟣 11–14 Double Pendulum

⭐ Recommended to Start

Perfect first simulations for kids

🫧 Bubble World Click to pop bubbles and create new ones. Watch how they float and merge — pure fun! 🟢 Ages 5–8 🎆 Fireworks Launch colorful fireworks into the night sky. Click anywhere to make them explode with sparks! 🟢 Ages 5–8 🌸 Spirograph Draw amazing geometric patterns with spinning circles — like the classic toy but endless! 🔵 Ages 8–11

👨‍🏫 Using in class? — All simulations run in the browser, no installation needed.

All Simulations

309+ Interactive Simulations

Each is a live physics model running in your browser — no installation needed

🔍 Search All Simulations Browse Categories →
0 Simulations
0 Categories
2 Languages (EN / UK)
0 Dependencies *
Learning Resources

Physics Made Clear

Articles, tutorials and references about the algorithms behind every simulation

Article

Verlet, Leapfrog & RK4

Why Euler's method is unstable and how symplectic integrators conserve energy. Comparison of six methods with error tables and pseudocode.

≈ 12 min read · Mathematics → Article

Double Pendulum & RK4

Lagrange equations, phase space and Lyapunov exponent. How 4th-order Runge-Kutta integrates a chaotic system without error accumulation.

≈ 11 min read · Chaos & Dynamics → Article

Conway's Game of Life

From four B3/S23 rules to a Turing-complete machine. Gosper's Glider Gun, HashLife and double-buffer optimisation.

≈ 10 min read · Cellular Automata →
All articles →
About

Why SimLab?

Interactive science right in your browser — no sign-up, no cost, no limits

🆓

Free Forever

All simulations and learning materials are open forever. No subscriptions, paid features or hidden terms.

🔓

Open Source

Study the implementations — from GLSL shaders to SPH and N-Body algorithms. Read the code right in your browser.

⚡

Zero Install

Pure HTML + CSS + JS without build tools or a server. Open the file in a browser — the simulation runs instantly.

309+ Simulations
75+ Categories
2 Languages (EN / UK)
0 Dependencies Needed
🔺 Three.js r160 🖥️ WebGL 2.0 ⬡ GLSL Shaders 🔩 Cannon-es 🟨 Pure JavaScript 🎨 CSS Variables

mysimulator.uk is an open collection of interactive science simulations running entirely in the browser — no downloads, no accounts, no cost. The library spans 309+ simulations across 75+ subject areas: from SPH fluid dynamics and N-body orbital mechanics to reaction-diffusion chemistry, neural action potentials, and quantum wave functions. Every simulation exposes its governing equations through real-time sliders, making the mathematics of physics, biology, and engineering immediately tangible. Available in English and Ukrainian, the site is used by students, educators, and developers worldwide as a visual reference for algorithms and scientific models.

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