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Top AI Repos tracks AI repositories on GitHub and answers two different questions about each one: is it moving right now, and would you bet a product on it.
Top AI Repos tracks AI repositories on GitHub and answers two different questions about each one: is it moving right now, and would you bet a product on it.
SimTK OpenSim C++ libraries and command-line applications, and Java/Python wrapping.
| Date | Stars |
|---|---|
| 2026-07-24 | 1085 |
| 2026-07-25 | 1085 |
| 2026-07-28 | 1086 |
| 2026-07-30 | 1086 |
| 2026-08-06 | 1086 |
Today
— stars today
This week
— stars this week
This month
— stars this month
Momentum
35.0
growth rate 0.00%/day
<!-- OpenSim Logo -->
<p align=center>
<a href="https://opensim.stanford.edu/">
<img src="doc/images/OpenSimLogo.png" alt="OpenSim Logo" height="250">
</p>
<!-- Badges -->
<p align=center>
<a href="https://github.com/opensim-org/opensim-core/actions">
<img src="https://github.com/opensim-org/opensim-core/workflows/continuous-integration/badge.svg" alt="Continuous Integration Badge">
</a>
<a href="https://github.com/opensim-org/opensim-core/releases">
<img src="https://img.shields.io/github/v/release/opensim-org/opensim-core?include_prereleases" alt="Releases Badge">
</a>
<a href="https://github.com/opensim-org/opensim-core/blob/master/LICENSE.txt">
<img src="https://img.shields.io/hexpm/l/apa" alt="License Badge">
</a>
<a href="https://github.com/opensim-org/opensim-core/wiki/Build-Instructions">
<img src="https://img.shields.io/badge/platform-windows%20%7C%20macos%20%7C%20linux-lightgrey" alt="Supported Platforms Badge">
</a>
<a href="https://github.com/opensim-org/opensim-core/graphs/contributors">
<img src="https://img.shields.io/github/contributors/opensim-org/opensim-core" alt="ZenHub Badge">
</a>
<a href="https://zenhub.com">
<img src="https://img.shields.io/badge/Shipping%20faster%20with-ZenHub-blueviolet" alt="ZenHub Badge">
</a>
</p>
---
**NOTE: This repository contains the source code of OpenSim 4.x. For OpenSim 3.x or earlier, see [this link](https://simtk-confluence.stanford.edu/display/OpenSim/Building+OpenSim+from+Source).**
OpenSim is software that lets users develop models of musculoskeletal structures and create dynamic simulations of movement, such as this one:
<!-- OpenSim Simulation -->
<p align="center">
<img src="doc/images/opensim_running.gif" alt=Simulation of human running by Sam Hamner (doi:10.1016/j.jbiomech.2010.06.025)>
</p>
More information can be found at our websites:
* [OpenSim website](http://opensim.stanford.edu), in particular the [support page](http://opensim.stanford.edu/support/index.html).
* [SimTK project website](https://simtk.org/home/opensim).
This repository contains:
- OpenSim's C++ libraries.
- OpenSim's C++ examples.
- OpenSim's command-line applications (inverse kinematics, computed muscle control, etc.).
- OpenSim's Java and Python bindings.
This repository does *not* include source code for the OpenSim GUI. The source code for the Opensim GUI can be found [here](https://github.com/opensim-org/opensim-gui).
## Download and Setup
Depending on your needs, there are different ways of downloading and setting up OpenSim:
- **OpenSim GUI**
- [Download page](https://simtk.org/frs/?group_id=91)
- [Scripting in the GUI](https://simtk-confluence.stanford.edu/display/OpenSim/Scripting+in+the+GUI)
- **Matlab and Python Scripting**
- [Setup Instructions](https://simtk-confluence.stanford.edu/display/OpenSim/Scripting)
- **Scripting in Conda**
- [Conda Package](https://anaconda.org/opensim-org/opensim)
- [Source Code](https://github.com/opensim-org/conda-opensim)
- [More Info](https://simtk-confluence.stanford.edu/display/OpenSim/Conda+Package)
- **C++ Development**
- [Build Instructions](https://github.com/opensim-org/opensim-core/wiki/Build-Instructions) for Windows, macOS, and Linux (Ubuntu and Debian).
- [Developer's Guide](https://simtk-confluence.stanford.edu/display/OpenSim/Developer%27s+Guide)
- [API Reference](https://simtk.org/api_docs/opensim/api_docs)
- **Looking for help?**
- [Ask a question](https://simtk.org/plugins/phpBB/indexPhpbb.php?group_id=91&pluginname=phpBB)
- [Submit an Issue](https://github.com/opensim-org/opensim-core/issues)
## Documentation
OpenSim's documentation can be found in our [Documentation](https://simtk-confluence.stanford.edu/display/OpenSim/Documentation) website.
OpenSim's C++ API reference can be found [here](https://simtk.org/api_docs/opensim/api_docs/).
A simple example of an elbow simulation in CExcerpt of 9,063 characters
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Would you bet a product on this? Bounded 0–100 and slow moving.
matched fp:81f0560d92869657, topic:simulation