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Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.

License: Github Source Code Repository, OpenSim, OpenSim Models and Examples, OpenSim Source Code

OpenSim is a freely available, user extensible software system that lets users develop models of musculoskeletal structures and create dynamic simulations of movement.

Find out how to join the community and see the work being performed using OpenSim at

Access all of our OpenSim resources at the new
Support Site.

Watch our Introductory Video get an overview of the OpenSim project and see how modeling can be used to help plan surgery for children with cerebral palsy.