PyPI93Exceptionalhealth index
Python★ 1,645↓ 209.8K/moSep 12, 2026
PyPI91Excellenthealth index

MolSSI/QCEngineQuantum chemistry program executor and IO standardizer (QCSchema).
Python★ 210↓ 5,268/moOct 19, 2026
PyPI91Excellenthealth index

glotzerlab/freudPowerful, efficient particle trajectory analysis in scientific Python.
C++ · Python★ 329↓ 4,771/moSep 13, 2026
PyPI87Excellenthealth index

MolSSI/QCElementalPeriodic table, physical constants, and molecule parsing for quantum chemistry.
Python★ 201Sep 16, 2026
PyPI84Excellenthealth index

theochem/gridPython library for numerical integration, interpolation, and differentiation on (molecular) grids.
Python★ 101Sep 18, 2026
PyPI80Excellenthealth index
Python★ 2↓ 4,709/moOct 20, 2026
crates.io · PyPI77Goodhealth index
C++ · Cap'n Proto · Python★ 4↓ 903/moSep 16, 2026
Fortran★ 839Sep 11, 2026
PyPI · crates.io77Goodhealth index

kent-tokyo/renkinLocal and reproducible route auditing for AiZynthFinder, Syntheseus and RENKIN — plus a portable Rust retrosynthesis engine.
Rust · Python★ 4↓ 58.4K/moSep 13, 2026
Python · C++★ 42↓ 384/moSep 11, 2026

lukasturcani/stkA Python library which allows construction and manipulation of complex molecules, as well as automatic molecular design and the creation of molecular databases.
Python★ 291↓ 5,559/moOct 11, 2026
Python★ 17↓ 5,304/moOct 19, 2026

HaoZeke/rgpycrumbsA dispatcher-based analytical and visualization suite for chemical physics
Python★ 4Sep 10, 2026
Python★ 2↓ 2,504/moOct 11, 2026

t-0hmura/mlmm_toolkitMachine‑Learning / Molecular‑Mechanics (ML/MM) hybrid calculator and CLI toolset for Mechanistic Investigation of Enzymatic Reactions.
Python★ 23↓ 357/moSep 9, 2026

t-0hmura/pdb2reactionEnd-to-end Reaction-Path Modeling from PDB Structures Using Machine-Learning Interatomic Potentials
Python★ 26↓ 378/moSep 5, 2026
PyPI62Moderatehealth index
Python · Fortran★ 162Sep 13, 2026
PyPI59Moderatehealth index

cnpem/AtomPackerA python package for packing nanoclusters into supramolecular cages.
Python★ 2Sep 10, 2026
TypeScript★ 0↓ 24/moSep 5, 2026

tilde-lab/pycrystalUtilities for ab initio modeling suite CRYSTAL, developed in Turin University
Python★ 11↓ 223/moSep 8, 2026