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    209 repositories

    • photoelectric-effect

      Public
      Photoelectric Effect is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •0•0•25•0•Updated May 28, 2026May 28, 2026

    • nuclear-decay-common

      Public
      Common code for alpha-decay, beta-decay, and radioactive-dating-game
      TypeScript
      •
      GNU General Public License v3.0
      •0•0•2•0•Updated May 28, 2026May 28, 2026

    • quantum-bound-states

      Public
      "Quantum Bound States" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •0•0•32•0•Updated May 28, 2026May 28, 2026

    • alpha-decay

      Public
      Alpha Decay is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •2•0•6•0•Updated May 28, 2026May 28, 2026

    • perennial

      Public
      Maintenance tools that won't change with different versions of chipper checked out
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •7•7•105•6•Updated May 28, 2026May 28, 2026

    • quantum-wave-interference

      Public
      "Quantum Wave Interference" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •0•1•31•0•Updated May 28, 2026May 28, 2026

    • chipper

      Public
      Tools for developing and building PhET interactive simulations.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •16•17•184•9•Updated May 28, 2026May 28, 2026

    • binder

      Public
      Generates and publishes documentation for PhET simulation components.
      JavaScript
      •
      MIT License
      •3•0•13•1•Updated May 28, 2026May 28, 2026

    • 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•2•Updated May 28, 2026May 28, 2026

    • resistance-in-a-wire

      Public
      "Resistance in a Wire" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •4•1•3•2•Updated May 27, 2026May 27, 2026

    • rutherford-scattering

      Public
      "Rutherford Scattering" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •4•2•7•2•Updated May 27, 2026May 27, 2026

    • 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
      •37•101•22•0•Updated May 27, 2026May 27, 2026

    • rosetta

      Public
      PhET's Simulation Translation Utility
      TypeScript
      •
      MIT License
      •2•3•57•4•Updated May 27, 2026May 27, 2026

    • scenery-phet

      Public
      Reusable components based on Scenery that are specific to PhET simulations.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •8•9•67•1•Updated May 26, 2026May 26, 2026

    • qa

      Public
      Quality Assurance Task Tracking
      JavaScript
      •
      MIT License
      •9•12•10•0•Updated May 26, 2026May 26, 2026

    • beta-decay

      Public
      "Beta Decay" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •0•0•1•0•Updated May 26, 2026May 26, 2026

    • 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 cont…
      TypeScript
      •
      GNU General Public License v3.0
      •6•2•7•0•Updated May 26, 2026May 26, 2026

    • build-a-nucleus

      Public
      "Build a Nucleus" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •5•1•7•0•Updated May 26, 2026May 26, 2026

    • tandem

      Public
      Simulation-side code for PhET-iO
      TypeScript
      •
      MIT License
      •6•0•18•0•Updated May 23, 2026May 23, 2026

    • dot

      Public
      A math library with a focus on mutable and immutable linear algebra for 2D and 3D applications.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •7•14•19•0•Updated May 22, 2026May 22, 2026

    • sun

      Public
      User-interface components for PhET simulations, built on top of Scenery.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •13•6•124•0•Updated May 22, 2026May 22, 2026

    • scenery

      Public
      Scenery is an HTML5 scene graph.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •17•70•344•0•Updated May 21, 2026May 21, 2026

    • joist

      Public
      Joist is the main framework for PhET Interactive Simulations. Joist creates and displays the simulation content, home screen, navigation bar, About dialog, ena…
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •7•9•102•0•Updated May 21, 2026May 21, 2026

    • number-suite-common

      Public
      "Number Suite Common" contains code for use by sims that are part of the Number Suite
      TypeScript
      •
      GNU General Public License v3.0
      •1•0•6•0•Updated May 20, 2026May 20, 2026

    • keplers-laws

      Public
      "Kepler's Laws" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •1•1•7•0•Updated May 20, 2026May 20, 2026

    • axon

      Public
      Axon provides powerful and concise models for interactive simulations, based on observable Properties and related patterns.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •7•12•13•0•Updated May 20, 2026May 20, 2026

    • 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•6•2•Updated May 20, 2026May 20, 2026

    • counting-common

      Public
      "Counting Common" contains code for use by sims that count with paper numbers or objects
      TypeScript
      •
      GNU General Public License v3.0
      •3•0•1•0•Updated May 20, 2026May 20, 2026

    • babel

      Public
      This repo contains the translated strings for PhET's simulations.
      scenerystack
      scenerystack
      Fluent
      •
      MIT License
      •9•4•3•0•Updated May 19, 2026May 19, 2026

    • circuit-construction-kit-common

      Public
      "Circuit Construction Kit: Basics" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •14•14•50•0•Updated May 19, 2026May 19, 2026
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