Welcome to Direct Force Field

This site provides information about Direct Force Field (DFF) software and online computing of using DFF to assign force field parameters.

DFF is a software package for development and deployment of molecular force fields. It comes in two versions: Standard and Professional. The Standard version is for deployment of force fields, while the Professional version offers additional functionalities for development of new force fields. The latest version is DFF 8.

This website provides online version of DFF standard edition, DFF Web. DFF Web uses TEAMFF, a database of multiple force fields in popular functional forms, to assign force field parameters and exports the parameters to simulation software package, LAMMPS and GROMACS.