finite-element-methods topic
elmerfem
Official git repository of Elmer FEM software
pyEIT
Python based toolkit for Electrical Impedance Tomography
libmesh
libMesh github repository
FreeFem-sources
FreeFEM source code
SolidsPy
2D-Finite Element Analysis with Python
delfem2
Research prototyping framework for physics simulation written in C++
FinEtools.jl
Finite Element tools in Julia
dolfinx
Next generation FEniCS problem solving environment
p4pdes
C and Python examples from my book on using PETSc and Firedrake to solve PDEs
underworld2
underworld2: A parallel, particle-in-cell, finite element code for Geodynamics.