Repositories list

• openmc

  Public
  OpenMC Monte Carlo Code

  computational-physicshigh-performance-computingmonte-carlo-simulation+ 10

  computational-physicshigh-performance-computingmonte-carlo-simulationnuclear-datanuclear-engineeringnuclear-fusionnuclear-energyneutron-transportparticle-transportphoton-transport+ 3

  Python

  •

  Other

  •629629 forks•1k1k stars•355355 issues•124124 pull requests•Updated Apr 18, 2026Apr 18, 2026

• openmc-performance-bench

  Public
  Performance benchmarking of OpenMC

  Python

  •00 forks•44 stars•00 issues•00 pull requests•Updated Mar 26, 2026Mar 26, 2026

• openmc-fundamental-testing

  Public
  MIT License

  •00 forks•00 stars•00 issues•00 pull requests•Updated Mar 20, 2026Mar 20, 2026

• plotter

  Public
  Native plotting GUI for model design and verification

  visualizationgeometrymonte-carlo-simulation+ 2

  visualizationgeometrymonte-carlo-simulationparticle-transportopenmc

  Python

  •

  MIT License

  •2121 forks•6767 stars•2525 issues•55 pull requests•Updated Mar 7, 2026Mar 7, 2026

• fes-project-ii

  Public
  Project repository for "An Open Source Nuclear Modeling Ecosystem to Support Fusion Pilot Plant Design" collaboration between MIT and ANL

  monte-carlo-simulationparticle-transportopenmc+ 2

  monte-carlo-simulationparticle-transportopenmcfusion-energyradiation-damage

  Python

  •11 fork•1010 stars•33 issues•00 pull requests•Updated Mar 5, 2026Mar 5, 2026

• data

  Public
  Collection of scripts for managing data for OpenMC

  Python

  •

  MIT License

  •3535 forks•3939 stars•1212 issues•66 pull requests•Updated Mar 3, 2026Mar 3, 2026

• openmc-ecosystem

  Public
  List of open source projects related to OpenMC

  monte-carlo-simulationnuclear-engineeringmultiphysics-simulation+ 2

  monte-carlo-simulationnuclear-engineeringmultiphysics-simulationneutronicsopenmc

  1414 forks•3636 stars•00 issues•11 pull request•Updated Feb 24, 2026Feb 24, 2026

• openmc.org

  Public
  Demo of a github pages version of the openmc website

  11 fork•22 stars•00 issues•00 pull requests•Updated Dec 23, 2025Dec 23, 2025

• validation

  Public
  Collection of validation scripts, notebooks, results

  Python

  •77 forks•1111 stars•11 issue•00 pull requests•Updated Dec 23, 2025Dec 23, 2025

• openmc_mcnp_adapter

  Public
  Tool for converting MCNP input files to OpenMC classes/XML

  monte-carlo-simulationnuclear-engineeringmcnp+ 1

  monte-carlo-simulationnuclear-engineeringmcnpopenmc

  Python

  •

  MIT License

  •3030 forks•5858 stars•77 issues•22 pull requests•Updated Dec 9, 2025Dec 9, 2025

• fes-performance-project

  Public
  Repository for FES project focused on OpenMC performance improvements

  00 forks•22 stars•1212 issues•00 pull requests•Updated Aug 23, 2025Aug 23, 2025

• fes-sdr-project

  Public
  Repository for FES Shutdown Dose Rate Workflows project

  Python

  •11 fork•88 stars•55 issues•00 pull requests•Updated Apr 8, 2025Apr 8, 2025

• openmc-notebooks

  Public
  Example Jupyter notebooks for OpenMC

  Jupyter Notebook

  •3636 forks•4444 stars•44 issues•44 pull requests•Updated Feb 28, 2025Feb 28, 2025

• openmc_cad_adapter

  Public
  Convert OpenMC Geometry Components to CAD

  Python

  •

  MIT License

  •1111 forks•2020 stars•44 issues•11 pull request•Updated Nov 22, 2024Nov 22, 2024

• openmc_serpent_adapter

  Public
  Tool for converting Serpent input files to OpenMC classes/XML

  Python

  •

  MIT License

  •00 forks•1111 stars•11 issue•00 pull requests•Updated Nov 19, 2024Nov 19, 2024