OpenSim Creator

Empowering model development for biomedical research.

Develop and learn from your biomechanical models. OpenSim Creator is free, open source, software that helps you visually build, edit, and simulate OpenSim models.

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Latest News

0.6.1 Released

0.6.1 is a minor release that fixes a few minor issues in the “Make a Leg” and “The Model Warper” documentation tutorials and fixes a bug in the model warper. Additionally, the MacOS and Windows installers are now signed by the developer, which should make them easier to install.

10 Oct 2025

0.6.0 Released

0.6.0 adds a new model building tutorial (Make a Leg) and relates it to the model warping tutorial (The Model Warper), which should significantly help users with those tasks. Additionally, there were many changes to the software to make these workflows easier and, of course, various bugfixes.

8 Sep 2025

0.5.25 Released

0.5.25 is a hotfix release that fixes some keybind regressions that 0.5.24 introduced (sorry about that!). It also includes a few other improvements/fixes.

14 Jul 2025

0.5.24 Released

0.5.24 is a regular monthly release that improves the model editor’s context menu, makes it easier to click muscle path points, adds a few extra contextual actions, and mostly finishes the first alpha version of the model warper documentation.

23 Jun 2025


Features

Visual Model Building

The mesh importer screen in OpenSim Creator enables people to visually build an OpenSim model from scratch.

Integrated Model Editing

The editor screen in OpenSim Creator enables researchers to edit OpenSim models both in the UI itself and in external tools such as text editors.

Free and Open Source

OpenSim Creator is entirely open source and uses a permissive Apache 2.0 license, which empowers innovators to use it however they want.

View GitHub

Compatible with OpenSim

OpenSim Creator uses the OpenSim API directly, which makes it very compatible with the existing OpenSim infrastructure, including existing model files.

View OpenSim Source View OpenSim Models Repository