SimNIBS is a free and open source software package for the Simulation of Non-invasive Brain Stimulation. It allows for realistic calculations of the electric field induced by transcranial magnetic stimulation (TMS) and transcranial electric stimulation (TES).

A SimNIBS workflow consists of three main parts:


SimNIBS is copyrighted © by its authors and licensed under GPL v3.


SimNIBS is a research tool. Clinical usage is not supported or advised. In particular, SimNIBS was not tested to give accurate results in the presence of pathological condition


  • Version 3.2.6 is now avaliable. This version fixes a bug that caused headreco to fail on MacOS. Please see details in changelog.

  • Version 3.2.5 is now avaliable. This version includes small fixes and improved control of scalp smoothing for TMS.

  • Version 3.2.4 is now avaliable. This version includes a number of bug fixes and small improvements.

  • Version 3.2 is now avaliable featuring TMS optimization using the ADM method (contributed by Luis Gomez), TES field strength and brain network optimization and magnetic field calculations for MRCDI and MREIT

  • Version 3.1 is now avaliable. This version features TDCS electrode optimization, TMS coil position optimization (contributed by Konstantin Weise and Ole Numssen) and even faster FEM solvers for leadfield calculations

  • Version 3.0 is now available. It is a major update of SimNIBS. Expect much faster simulations and easier visualizations!