The Open Forcefield Toolkit provides implementations of the SMIRNOFF format, parameterization engine, and other tools. Documentation available at http://open-forcefield-toolkit.readthedocs.io
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Updated
Jul 27, 2026 - Python
The Open Forcefield Toolkit provides implementations of the SMIRNOFF format, parameterization engine, and other tools. Documentation available at http://open-forcefield-toolkit.readthedocs.io
An automated framework for generating optimized partial charges for molecules
Parameter/topology editor and molecular simulator
OpenFF NAGL
OFFICIAL: AnteChamber PYthon Parser interfacE
Automated tools for the generation of bespoke SMIRNOFF format parameters for individual molecules.
CHARMM and AMBER forcefields for OpenMM (with small molecule support)
Interface for AutoDock, molecule parameterization
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