Free tDCS Modeling Tools
Courtesy of Danish Research Centre for Magnetic Resonance (DRCMR) and the Technical University of Denmark (DTU), is SimNIBS.
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)
Courtesy of Korea Brain Research Institute, Dongseo University, Hanyang University
Comets – A Matlab Toolbox for 3D Simulation of tDCS Induced Current
Courtesy of the Neural Engineering Lab at CCNY, the ROAST, BONSIA and SPHERES free modeling tools are live and FREE. These modeling packages can be used to help design TES montages including for tDCS, tACS, tRNS, and more.
You can watch a detailed walkthrough of ROAST here. To get more detailed info on ROAST please visit CUNY Parra Lab.