83 projects
Isaac Lab
Unified framework for robot learning built on NVIDIA Isaac Sim
Contributors
2,086
Organizations
190
Software value
$6.9M
MOOSE
MOOSE (Multiphysics Object-Oriented Simulation Environment) is a finite element framework developed by Idaho National Laboratory for solving complex engineering and scientific problems. It provides a flexible, parallel computational framework for coupled systems of nonlinear partial differential equations.
Contributors
2,081
Organizations
79
Software value
$101M
LAMMPS
LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator) is a classical molecular dynamics simulation code designed to efficiently compute atomic, polymeric, biological, metallic, granular, and coarse-grained systems using various interatomic potentials and boundary conditions on parallel computers.
Contributors
1,365
Organizations
169
Software value
$69M
OpenMM
OpenMM is a toolkit for molecular simulation using high performance GPU code.
Contributors
1,356
Organizations
204
Software value
$40M
Drake
Drake is a robotics toolbox and model-based design tool for analyzing and controlling robotic systems. It provides a comprehensive suite of tools for simulation, optimization, and control of complex robotic systems, with support for rigid body dynamics, trajectory optimization, and control system design.
Contributors
1,027
Organizations
153
Software value
$32M
OpenFAST
Main repository for the NREL-supported OpenFAST whole-turbine and FAST.Farm wind farm simulation codes.
Contributors
1,011
Organizations
30
Software value
$18M
SOFA
Real-time multi-physics simulation with an emphasis on medical simulation.
Contributors
899
Organizations
43
Software value
$18M
SU2
SU2 is an open-source suite of tools for performing computational fluid dynamics (CFD) simulations and solving partial differential equations. It is designed for aerodynamic shape optimization and is capable of simulating compressible, incompressible, and multiphysics flows.
Contributors
871
Organizations
55
Software value
$21M
Gazebo Sim
Open source robotics simulator. The latest version of Gazebo.
Contributors
868
Organizations
166
Software value
$9M
Logisim-evolution
Logisim-evolution is an educational tool for designing and simulating digital logic circuits. It provides a graphical interface for creating circuits using standard components like gates, flip-flops, and multiplexers, while supporting features such as VHDL/Verilog export, circuit analysis, and hardware testing capabilities.
Contributors
867
Organizations
128
Software value
$12M
OpenModelica
OpenModelica is an open-source Modelica-based modeling and simulation environment intended for industrial and academic usage. It supports model-based design and simulation of complex physical systems in multiple domains including mechanical, electrical, electronic, hydraulic, thermal, control, and electric power systems.
Contributors
867
Organizations
75
Software value
$70M
AMReX
The mission and charitable purposes (collectively, the “Charitable Purposes”) of the Project is to provide a parallel, performance-portable block-structured adaptive mesh refinement framework for science and engineering applications.
Contributors
794
Organizations
76
Software value
$187M
Kratos Multiphysics
Kratos Multiphysics is an open-source framework for the implementation of numerical methods for solving engineering problems, particularly focused on finite element methods, computational fluid dynamics, and structural mechanics. It provides a unified environment for multi-physics simulations with parallel processing capabilities.
Contributors
736
Organizations
46
Software value
$124M
WRF
The Weather Research and Forecasting (WRF) Model is a next-generation mesoscale numerical weather prediction system designed for both atmospheric research and operational forecasting applications. It features multiple dynamical cores and a software architecture allowing for parallel computation and system extensibility.
Contributors
667
Organizations
59
Software value
$49M
NEST Neural Simulation Tool
The NEST simulator
Contributors
665
Organizations
75
Software value
$11M
ModelingToolkit.jl
ModelingToolkit.jl is a symbolic modeling framework for scientific computing and automated model transformation in Julia. It enables users to define, manipulate, and solve complex mathematical models through symbolic computation, automatic differentiation, and code generation capabilities.
Contributors
661
Organizations
156
Software value
$2.1M
OpenMC
OpenMC Monte Carlo Code
Contributors
631
Organizations
59
Software value
$6.9M
CP2K
Quantum chemistry and solid state physics software package
Contributors
621
Organizations
84
Software value
$39M
WarpX
The mission and charitable purposes (collectively, the “Charitable Purposes”) of the Project is to provide a community, performance-portable and modular Particle in-Cell code with advanced algorithms.
Contributors
602
Organizations
57
Software value
$12M
TARDIS
TARDIS - Temperature And Radiative Diffusion In Supernovae
Contributors
555
Organizations
97
Software value
$4.7M
MATSim
Multi-Agent Transport Simulation
Contributors
553
Organizations
30
Software value
$43M
PowSyBl
PowSyBl (Power System Blocks) is an open source library dedicated to electrical grid modeling and simulation. PowSyBl is written in Java and licensed under the Mozilla Public License 2.0. PowSyBl may be scripted for a quick solution, but it can also be used as a library to write complex software for power system simulation and analysis. Using PowSyBl, developers can create applications able to perform dynamic power flow simulations and security analyses on the network, handle a variety of formats including CGMES for European data exchanges, and many other tasks. PowSyBl has a completely modular design, enabling developers to extend or customize its features by providing their own plugins. Modularity is a key value of PowSyBl’s open source design.
Contributors
512
Organizations
55
Software value
$692M
OpenSees
OpenSees Source Code Repository
Contributors
504
Organizations
24
Software value
$56M
HOOMD-blue
Molecular dynamics and Monte Carlo soft matter simulation on GPUs.
Contributors
499
Organizations
37
Software value
$8.6M
OpenSim
SimTK OpenSim C++ libraries and command-line applications, and Java/Python wrapping.
Contributors
460
Organizations
57
Software value
$12M
WEC-Sim
WEC-Sim (Wave Energy Converter Simulator) is an open-source software tool for simulating wave energy converters. It provides a modeling and analysis framework for studying the performance of wave energy conversion devices in the time-domain using MATLAB/Simulink.
Contributors
456
Organizations
9
Software value
$618K
ApsimX
ApsimX is the next generation of APSIM
Contributors
448
Organizations
21
Software value
$27M
OpenRAVE
Open Robotics Automation Virtual Environment: An environment for testing, developing, and deploying robotics motion planning algorithms.
Contributors
424
Organizations
68
Software value
$26M
INET Framework
INET Framework for the OMNeT++ discrete event simulator
Contributors
421
Organizations
47
Software value
$21M
PyPSA
PyPSA: Python for Power System Analysis
Contributors
413
Organizations
51
Software value
$3.7M
ASPECT
A parallel, extensible finite element code to simulate convection in both 2D and 3D models.
Contributors
401
Organizations
27
Software value
$51M
Global Change Analysis Model (GCAM)
The Global Change Analysis Model (GCAM) is an integrated assessment model that explores the dynamics between human and Earth systems. It simulates the interactions between energy, agriculture, land use, water, climate, and economic systems to analyze long-term global change scenarios and policy impacts.
Contributors
400
Organizations
13
Software value
$199M
Cantera
Chemical kinetics, thermodynamics, and transport tool suite
Contributors
396
Organizations
63
Software value
$8.2M
RoboticsAcademy
RoboticsAcademy is an open-source platform for learning robotics and computer vision through practical exercises. It provides a collection of hands-on exercises and tutorials using Python programming and simulated robots, allowing students to learn concepts like autonomous navigation, visual perception, and drone programming.
Contributors
393
Organizations
46
Software value
$4.4M
Reaction Mechanism Generator (RMG)
Reaction Mechanism Generator (RMG) is an open-source software tool for automatically generating detailed chemical kinetic mechanisms for modeling chemical reactions. It uses rate-based algorithm and fundamental chemical properties to predict the important reactions and species in a chemical system, producing comprehensive reaction networks for thermal chemistry.
Contributors
388
Organizations
28
Software value
$9.6M
Qucs-S
Qucs-S is a circuit simulation program with Qt-based GUI
Contributors
376
Organizations
38
Software value
$20M
Elmer FEM
Official git repository of Elmer FEM software
Contributors
355
Organizations
54
Software value
$37M
Modelica Buildings Library
Modelica Buildings library
Contributors
339
Organizations
26
Software value
$29M
Basilisk
Astrodynamics simulation framework
Contributors
337
Organizations
21
Software value
$24M
IHMC Open Robotics Software
Robotics software featuring legged locomotion algorithms and a momentum-based controller core with optimization. Supporting software for world-class robots including humanoids, running birds, exoskeletons, mechs and more.
Contributors
333
Organizations
13
Software value
$41M
ABACUS
An electronic structure package based on either plane wave basis or numerical atomic orbitals.
Contributors
309
Organizations
14
Software value
$29M
Agents.jl
Agent-based modeling framework in Julia
Contributors
290
Organizations
56
Software value
$561K
ABINIT
The official github mirror of the Abinit repository. We welcome bug fixes and improvements. Note that most of the active developments are hosted on our https://gitlab.abinit.org/ server. Before embarking on making significant changes, please contact the Abinit group.
Contributors
280
Organizations
27
Software value
$89M
FireSim
FireSim is an open-source FPGA-accelerated hardware simulation platform that enables cycle-accurate microarchitecture simulation of RISC-V systems at scale. It allows users to simulate and debug complex hardware designs using cloud FPGAs, supporting both single-node and networked multi-node simulations.
Contributors
274
Organizations
46
Software value
$2.3M
OpenMDAO
OpenMDAO repository.
Contributors
265
Organizations
22
Software value
$9.7M
PIConGPU
Performance-Portable Particle-in-Cell Simulations for the Exascale Era :sparkles:
Contributors
261
Organizations
32
Software value
$15M
RAVEN (Risk Analysis Virtual Environment)
RAVEN is a flexible and multi-purpose probabilistic risk analysis, validation and uncertainty quantification, parameter optimization, model reduction and data knowledge-discovering framework.
Contributors
255
Organizations
8
Software value
$25M
Shadow
Shadow is a project focused on developing a cross-platform input recording and playback system for Linux and Windows, allowing for the simulation and automation of keyboard and mouse inputs
Contributors
240
Organizations
51
Software value
$3.9M
Trixi.jl
Trixi.jl: Adaptive high-order numerical simulations of conservation laws in Julia
Contributors
219
Organizations
45
Software value
$4.4M
GalSim
The modular galaxy image simulation toolkit. Documentation:
Contributors
209
Organizations
37
Software value
$12M
Catalyst.jl
Chemical reaction network and systems biology interface for scientific machine learning (SciML). High performance, GPU-parallelized, and O(1) solvers in open source software.
Contributors
204
Organizations
52
Software value
$1.6M
RocketPy
Next generation High-Power Rocketry 6-DOF Trajectory Simulation
Contributors
202
Organizations
19
Software value
$18M
REMIND
REMIND - REgional Model of INvestments and Development
Contributors
198
Organizations
7
Software value
$528K
Athena++
Athena++ radiation GRMHD code and adaptive mesh refinement (AMR) framework
Contributors
194
Organizations
13
Software value
$3.9M
SeisSol
A scientific software for the numerical simulation of seismic wave phenomena and earthquake dynamics
Contributors
191
Organizations
16
Software value
$6M
SPHinXsys
SPHinXsys (Smoothed Particle Hydrodynamics for industrial complex systems) is an open-source C++ library for modeling complex fluid dynamics and fluid-structure interactions using meshless methods. It provides tools for simulating multi-physics phenomena including fluid dynamics, solid mechanics, and heat transfer.
Contributors
190
Organizations
9
Software value
$25M
Scenario Simulator v2
A scenario-based simulation framework for Autoware
Contributors
190
Organizations
21
Software value
$7.2M
Earth System Modeling Framework (ESMF)
The Earth System Modeling Framework (ESMF) is a suite of software tools for developing high-performance, multi-component Earth science modeling applications.
Contributors
184
Organizations
30
Software value
$44M
WISDEM
Wind Plant Integrated System Design and Engineering Model
Contributors
167
Organizations
11
Software value
$7.5M
ClimaAtmos.jl
ClimaAtmos.jl is a library for building atmospheric circulation models that is designed from the outset to leverage data assimilation and machine learning tools. We welcome contributions!
Contributors
149
Organizations
18
Software value
$2.1M