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@phetsims PhET Interactive Simulations

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    203 repositories

    • vegas

      Public
      Reusable game components for PhET simulations.
      scenerystack
      TypeScript
      •
      MIT License
      •5•1•13•0•Updated Oct 15, 2025Oct 15, 2025

    • babel

      Public
      This repo contains the translated strings for PhET's simulations.
      scenerystack
      Fluent
      •
      MIT License
      •8•4•3•0•Updated Oct 15, 2025Oct 15, 2025

    • vector-addition

      Public
      “Vector Addition” is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •5•3•21•0•Updated Oct 15, 2025Oct 15, 2025

    • shred

      Public
      A library of JavaScript code that is used in PhET simulations that depict atoms, subatomic particles, and atomic structure. This was originally created to contain the code that is shared between the "Build an Atom" and "Isotopes and Atomic Mass" simulations, thought it may be applied to additional simulations in the future.
      TypeScript
      •
      GNU General Public License v3.0
      •6•1•7•0•Updated Oct 15, 2025Oct 15, 2025

    • scenery

      Public
      Scenery is an HTML5 scene graph.
      scenerystack
      TypeScript
      •
      MIT License
      •14•65•356•0•Updated Oct 15, 2025Oct 15, 2025

    • ph-scale

      Public
      "pH Scale" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •8•0•2•0•Updated Oct 15, 2025Oct 15, 2025

    • membrane-transport

      Public
      "Membrane Channels" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •1•2•11•0•Updated Oct 15, 2025Oct 15, 2025

    • build-an-atom

      Public
      "Build an Atom" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •10•13•20•0•Updated Oct 15, 2025Oct 15, 2025

    • beers-law-lab

      Public
      "Beer's Law Lab" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •9•2•3•0•Updated Oct 15, 2025Oct 15, 2025

    • tambo

      Public
      library containing code to support sonification of PhET simulations
      scenerystack
      TypeScript
      •
      MIT License
      •4•3•42•0•Updated Oct 15, 2025Oct 15, 2025

    • number-pairs

      Public
      "Number Pairs" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •0•1•29•0•Updated Oct 14, 2025Oct 14, 2025

    • joist

      Public
      Joist is the main framework for PhET Interactive Simulations. Joist creates and displays the simulation content, home screen, navigation bar, About dialog, enables switching between tabs, and other framework-related features.
      scenerystack
      TypeScript
      •
      MIT License
      •6•9•112•0•Updated Oct 14, 2025Oct 14, 2025

    • chipper

      Public
      Tools for developing and building PhET interactive simulations.
      scenerystack
      TypeScript
      •
      MIT License
      •14•15•180•0•Updated Oct 14, 2025Oct 14, 2025

    • launchpad

      Public
      Utility for launching PhET simulations
      TypeScript
      •
      MIT License
      •0•0•0•0•Updated Oct 14, 2025Oct 14, 2025

    • number-play

      Public
      "Number Play" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •2•3•11•0•Updated Oct 14, 2025Oct 14, 2025

    • make-a-ten

      Public
      "Making Tens" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •3•1•16•0•Updated Oct 14, 2025Oct 14, 2025

    • fourier-making-waves

      Public
      "Fourier: Making Waves" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •3•6•13•0•Updated Oct 14, 2025Oct 14, 2025

    • equality-explorer

      Public
      "Equality Explorer" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •3•2•14•0•Updated Oct 14, 2025Oct 14, 2025

    • phet-info

      Public
      Collection of information shared by PhET team members for the purpose of using github effectively and for other process-related topics.
      Python
      •
      MIT License
      •32•87•28•0•Updated Oct 14, 2025Oct 14, 2025

    • perennial

      Public
      Maintenance tools that won't change with different versions of chipper checked out
      scenerystack
      JavaScript
      •
      MIT License
      •6•7•101•0•Updated Oct 14, 2025Oct 14, 2025

    • binder

      Public
      Generates and publishes documentation for PhET simulation components.
      JavaScript
      •
      MIT License
      •2•0•13•1•Updated Oct 14, 2025Oct 14, 2025

    • graphing-quadratics

      Public
      "Graphing Quadratics" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      MIT License
      •4•1•7•0•Updated Oct 13, 2025Oct 13, 2025

    • concentration

      Public
      "Concentration" is an educational simulation in HTML5, by PhET Interactive Simulations.
      HTML
      •
      GNU General Public License v3.0
      •7•1•1•0•Updated Oct 13, 2025Oct 13, 2025

    • rosetta

      Public
      PhET's Simulation Translation Utility
      TypeScript
      •
      MIT License
      •1•3•54•1•Updated Oct 13, 2025Oct 13, 2025

    • chains

      Public
      This application demonstrates the various types of strings that may appear in PhET simulations, and is intended to be used for testing string-translation tools.
      JavaScript
      •
      GNU General Public License v3.0
      •2•0•4•0•Updated Oct 13, 2025Oct 13, 2025

    • forces-and-motion-basics

      Public
      "Forces and Motion: Basics" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •13•8•21•0•Updated Oct 13, 2025Oct 13, 2025

    • phetcommon

      Public
      Code that is common to all PhET simulations.
      scenerystack
      JavaScript
      •
      MIT License
      •5•4•10•0•Updated Oct 10, 2025Oct 10, 2025

    • arithmetic

      Public
      "Arithmetic" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •5•5•4•0•Updated Oct 10, 2025Oct 10, 2025

    • balancing-act

      Public
      "Balancing Act" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •8•1•11•0•Updated Oct 10, 2025Oct 10, 2025

    • graphing-lines

      Public
      "Graphing Lines" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •3•0•1•0•Updated Oct 10, 2025Oct 10, 2025