OpenCARP is an open in silico simmulation environment of cardiac electrophisiology. The source code is public and the software is available for free. It offers a great variety of functions and pre-existing models, from single cells and ion channels to complex structures, such as organs, and also presents visualizing tools.
More information, manuals, tutorials and examples of use can be found on the website: Mais informações, manuais, tutoriais e exemplos podem ser encontrados no site: https://opencarp.org/