| [ASE](https://wiki.fysik.dtu.dk/ase/) | ASE is a python package providing an open source Atomic Simulation Environment in the Python scripting language. |
| [CP2K](http://www.cp2k.org/) | CP2K is a freely available (GPL) program, written in Fortran 95, to perform atomistic and molecular simulations of solid state, liquid, molecular and biological systems. It provides a general framework for different methods such as e.g. density functional theory (DFT) using a mixed Gaussian and plane waves approach (GPW), and classical pair and many-body potentials. |