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 opensim.stanford.edu.

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.