Physics Comes Alive
In Your Browser
Explore interactive simulations for physics, chemistry, and engineering. Drag, tweak, observe — learn by playing.
80+
Simulators
9
Categories
100%
Free
Explore by Category
From classical mechanics to quantum chemistry — find the perfect simulator for your topic.
Classical Mechanics
Projectile motion, forces, energy, collisions, and rotational dynamics
Waves & Sound
Wave propagation, interference, Doppler effect, and sound visualization
Electricity & Magnetism
Electric fields, circuits, Ohm's law, and electromagnetic induction
Optics & Light
Reflection, refraction, lenses, prisms, and diffraction patterns
Gravity & Orbits
Orbital mechanics, solar system, tidal forces, and N-body simulations
Thermodynamics
Gas laws, heat transfer, entropy, and engine cycles
Math Visualization
Vectors, trigonometry, graphing, Fourier series, and fractals
Engineering
Logic gates, bridge building, gears, and structural analysis
Chemistry
Molecules, periodic table, reactions, pH scale, and titration
Featured Simulators
Our most popular and visually stunning simulations — jump right in.
Projectile Motion
Launch projectiles with adjustable angle, velocity, and gravity. Trace parabolic paths with real-time graphs.
Force Diagram Builder
Place objects, add force vectors, see net force and resulting acceleration.
Energy Conservation
Ball on a roller coaster track with real-time KE, PE, and total energy bars.
Simple Pendulum
Adjust length, mass, and gravity. Observe period and damping effects.
Double Pendulum
Mesmerizing chaotic motion with path tracing.
Wave on a String
Shake one end, adjust frequency and amplitude. Standing waves and reflections.
Wave Interference
Two sources creating constructive and destructive patterns. 2D ripple tank.
Electric Field Visualizer
Place charges and watch field lines update in real time.
Why PhysSandbox?
Runs in Browser
No downloads, no plugins. Just open and start experimenting on any device.
Real-Time Graphs
Live-updating position, velocity, and energy graphs alongside every simulation.
Touch-Friendly
Designed for tablets and phones. Pinch to zoom, drag to interact.
Completely Free
No paywalls, no registration needed. Education should be accessible to everyone.
Share Setups
Share specific configurations with students via URL. Perfect for teachers.
Fullscreen Mode
Project simulations on classroom screens in fullscreen mode.
Start Exploring
Jump into any of our 80+ simulators and start learning through interaction. No account needed.