1. EMC

Effective mass calculator (EMC) implements calculation of the effective masses at the bands extrema using finite difference method (not the band fitting method). There are two versions of the program: written in FORTRAN and Python. Currently CRYSTAL, VASP, CASTEP are supported!

https://github.com/afonari/emc

2. Effective Mass Theory

Calculate simple semiconductor properties from effective mass theory using python!

https://github.com/WMD-group/effectivemasstheory

3. Effective Mass

A simple Python script used to calculate effective masses automatically.

https://github.com/liujiacode/EffectiveMass

4. Effmass

effmass is a Python package for calculating various definitions of effective mass from the electronic bandstructure of a semiconducting material. It consists of a core class that calculates the effective mass and other associated properties of selected bandstructure segments. The module also contains functions for locating bandstructure extrema and plotting approximations to the dispersion.

https://github.com/lucydot/effmass