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@phetsims PhET Interactive Simulations

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    213 repositories

    • wave-on-a-string

      Public
      "Wave on a String" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •8•10•16•0•Updated Sep 10, 2026Sep 10, 2026

    • babel

      Public
      This repo contains the translated strings for PhET's simulations.
      scenerystack
      scenerystack
      Fluent
      •
      MIT License
      •12•6•4•1•Updated Sep 9, 2026Sep 9, 2026

    • rosetta

      Public
      PhET's Simulation Translation Utility
      TypeScript
      •
      MIT License
      •3•3•51•8•Updated Sep 8, 2026Sep 8, 2026

    • particle-in-a-box

      Public
      "Particle in a Box" is an educational simulation in HTML5, by PhET Interactive Simulations.
      0•0•1•0•Updated Sep 2, 2026Sep 2, 2026

    • bound-state-superposition

      Public
      "Quantum Wave Function Superposition" is an educational simulation in HTML5, by PhET Interactive Simulations.
      0•0•1•0•Updated Sep 2, 2026Sep 2, 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
      •1•0•21•0•Updated Aug 30, 2026Aug 30, 2026

    • double-wells-and-covalent-bonds

      Public
      "Double Wells and Covalent Bonds" is an educational simulation in HTML5, by PhET Interactive Simulations.
      0•0•1•0•Updated Aug 28, 2026Aug 28, 2026

    • band-structure

      Public
      "Band Structure" is an educational simulation in HTML5, by PhET Interactive Simulations.
      0•0•1•0•Updated Aug 28, 2026Aug 28, 2026

    • beta-decay

      Public
      "Beta Decay" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •1•0•7•0•Updated Aug 19, 2026Aug 19, 2026

    • alpha-decay

      Public
      Alpha Decay is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •3•0•7•0•Updated Aug 19, 2026Aug 19, 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
      •40•112•21•1•Updated Aug 12, 2026Aug 12, 2026

    • molecule-polarity

      Public
      "Molecule Polarity" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •6•2•4•2•Updated Aug 7, 2026Aug 7, 2026

    • binder

      Public
      Generates and publishes documentation for PhET simulation components.
      JavaScript
      •
      MIT License
      •4•0•13•1•Updated Aug 5, 2026Aug 5, 2026

    • skiffle

      Public
      A sound board where all sounds used in PhET sims can be tried out.
      HTML
      •
      GNU General Public License v3.0
      •4•2•1•0•Updated Aug 5, 2026Aug 5, 2026

    • radioactive-dating

      Public
      "Radioactive Dating" is an educational simulation in HTML5, by PhET Interactive Simulations.
      0•0•5•0•Updated Aug 4, 2026Aug 4, 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
      •10•14•19•1•Updated Jul 16, 2026Jul 16, 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
      •1•1•5•0•Updated Jul 8, 2026Jul 8, 2026

    • waves-intro

      Public
      "Waves Intro" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •7•0•3•1•Updated Jul 8, 2026Jul 8, 2026

    • wave-interference

      Public
      "Wave Interference" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      MIT License
      •11•19•14•1•Updated Jul 8, 2026Jul 8, 2026

    • photoelectric-effect

      Public
      Photoelectric Effect is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •1•0•19•0•Updated Jul 7, 2026Jul 7, 2026

    • nuclear-decay-common

      Public
      Common code for alpha-decay, beta-decay, and radioactive-dating-game
      TypeScript
      •
      GNU General Public License v3.0
      •1•0•3•0•Updated Jul 7, 2026Jul 7, 2026

    • perennial

      Public
      Maintenance tools that won't change with different versions of chipper checked out
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •9•8•106•7•Updated Jul 7, 2026Jul 7, 2026

    • chipper

      Public
      Tools for developing and building PhET interactive simulations.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •20•17•180•12•Updated Jul 7, 2026Jul 7, 2026

    • scenery-phet

      Public
      Reusable components based on Scenery that are specific to PhET simulations.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •11•10•69•1•Updated Jul 7, 2026Jul 7, 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
      •7•2•2•0•Updated Jul 6, 2026Jul 6, 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
      •2•0•6•0•Updated Jul 6, 2026Jul 6, 2026

    • make-a-ten

      Public
      "Making Tens" is an educational simulation in HTML5, by PhET Interactive Simulations.
      TypeScript
      •
      GNU General Public License v3.0
      •4•1•0•2•Updated Jul 6, 2026Jul 6, 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
      •4•0•1•0•Updated Jul 6, 2026Jul 6, 2026

    • axon

      Public
      Axon provides powerful and concise models for interactive simulations, based on observable Properties and related patterns.
      scenerystack
      scenerystack
      TypeScript
      •
      MIT License
      •10•12•13•0•Updated Jul 1, 2026Jul 1, 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
      •10•10•103•0•Updated Jul 1, 2026Jul 1, 2026
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