The "FEMM" keyword typically refers to two very different software programs depending on whether you are looking for engineering tools or women’s health technology. 1. Finite Element Method Magnetics (FEMM)
is an open-source, Windows-based finite element solver primarily used for 2D and axisymmetric electromagnetic problems. It is highly popular in engineering and education for its low computational cost and accuracy. Version 4.2 User's Manual - Finite Element Method Magnetics femm program download