Classical
Beginner
hello
0.00 sTime 0.00 mDisplacement 0.00 m/sVelocity 0.00 HzFrequency Mass 1.0 kg Spring constant 20 N/m Damping 0.00 Amplitude 1.00 m Pause Reset Show energy
Open Source Physics Simulations
PhysicsLab — Interactive Physics in Your Browser
No install, no plugins, no downloads. Just open a simulation and explore the laws of the universe — from classical chaos to quantum waves.
12
Simulations
100%
Open Source
Real
Physics Engine
Available Simulations
Classical
Intermediate
Double Pendulum
Explore deterministic chaos with a real double pendulum. Adjust rod lengths, masses and initial angles, and watch the trajectory unfold with real-time energy tracking.
Quantum
Intermediate
Particle in a Box
Visualise quantum wavefunctions for a particle confined to a 1D infinite square well. See eigenstates, probability densities and energy eigenvalues for n = 1 to 8.