Physics in the browser

PanPhy Labs

Physics apps, tools, sims, and some random stuff.

Wave Superposition 0.2 s/div · ×0.1 speed f₁ = 2.0 Hz f₂ = 2.3 Hz beat = 0.3 Hz
Explore the collection

Find the right physics app.

Browse the collection by topic.

23 apps shown.
Build & analyze

Tools Explore

Practical browser-based tools for writing, measuring, plotting, and investigating.

5 apps
Editor

PanPhyMD

A simple Markdown editor with LaTeX support.
Data analysis

PanPhyPlot

Process data, plot graphs, add uncertainties, and run best-fit analysis.
Video analysis

PanPhyTrack

Step through video frames, track objects, and extract motion data.
Audio analysis

Sound Analyzer

Visualize live audio as a frequency spectrum and waveform.

Uses microphone
Audio tool

Tone Generator

Mix two sine-wave channels with precise frequency and level controls.
Build & experiment

Sandboxes Create

Build your own physics experiments, from circuits to mechanical systems.

2 apps
Circuit builder

PanPhyCircuits

Build circuits from real parts or as diagrams, then measure currents and p.d.s.
Mechanics sandbox

PanPhyMech

Build with objects, springs, and motors. Set them in motion and graph the physics.
See physics move

Simulations Interact

Interactive models for exploring waves, mechanics, matter, electromagnetism, nuclear physics, space, and relativity.

12 apps
Wave lab

Virtual Ripple Tank

Explore wave interference and refraction in a 3D ripple tank.
Wave lab

Wave Superposition

Combine waves and see how amplitude, phase, and interference interact.
Wave lab

Standing Wave

Visualize standing waves with different boundary conditions.
Mechanics

Collision Lab

Experiment with collision physics using interactive, real-time motion.

Uses camera
Particle model

States of Matter

Watch a 3D particle model melt, boil and freeze between solid, liquid and gas.
Electromagnetism

Electric Motors

See the motor effect, then run a DC motor and an AC motor in 3D.
Electromagnetism

Charges in Fields

Steer charged particles through electric and magnetic fields in 3D.
Atomic physics

Atomic Models

Explore four atomic models in 3D and see how our picture of the atom changed.
Nuclear physics

Nuclear Decay

Watch alpha, beta and gamma decay in 3D, balance equations and measure half-life.
Nuclear physics

Fission and Fusion

Split uranium, run a chain reaction and fuse hydrogen in 3D.
Astrophysics

Life Cycle of a Star

Choose a star's mass and follow its whole life in 3D, from nebula to its final state.
Relativity

Lorentz Transform

Learn how spacetime transforms between inertial frames.
Made for the classroom

For Teachers Utility

Simple utilities designed for lessons, demonstrations, and assessments.

2 apps
Assessment

Exam Timer

Manage exam times with an automatic extra-time timer.
Classroom

Camera Visualizer

Project your device camera to the big screen, then snap and sketch.

Uses camera
Experiments & play

For Fun Play

Playful side projects where physics, cameras, and code get a little strange.

2 apps
Typing game

Spellwave

Type to cast spells and beat the monsters.
Creative camera

ASCII Camera

See yourself in 8-bit color ASCII characters.

Uses camera
Why PanPhy

About

Small, useful physics apps that run wherever a browser does.

Browser based Classroom friendly Offline ready

Welcome to PanPhy Labs. These tools, simulations, and games are built with AI and designed to be interactive and educational. There are many great physics tools online, but not all of them fit my lessons. On school-managed devices, students and teachers often don't have the admin rights to install software, so I build my own web apps that are simple, run in any browser, and need no installation.

The aim is simple: build tools I’m proud to use in my own classroom and happy to recommend to others.

Most apps are offline-friendly after the first visit. Look for the Offline ready badge on each card. Games and features that rely on external services still require an internet connection.