# schrodinger/pymol-open-source

Open-source foundation of the user-sponsored PyMOL molecular visualization system.

Repository: https://github.com/schrodinger/pymol-open-source
Canonical: https://ross.abutalabs.com/products/pymol-open-source
Homepage: https://pymol.org/
Language: C
License: NOASSERTION
License Family: other
Last push: 2026-07-25T04:24:08+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 94, release rhythm 35, longevity 100
- inputs: {"age_days": 2997, "days_push": 39, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1733, forks 387 (observed 2026-08-28T04:05:28.954310+00:00)

## What it is
The open-source foundation of PyMOL, a molecular visualization system for rendering and analyzing 3D structures of proteins, nucleic acids, and small molecules. It is maintained by Schrödinger and serves as the basis for the commercial Incentive PyMOL product.

## Use cases
- visualize protein 3D structures
- render molecular models for publications
- analyze pdb files interactively
- create animations of molecular structures
- script molecular visualization with python
- inspect ligand binding sites

## When to choose
- you need a scriptable, Python-extensible molecular graphics tool
- you want a free, permissively licensed alternative to commercial molecular viewers
- you work with PDB structures in structural biology or computational chemistry

## When to avoid
- you need vendor support, maintenance, and the latest commercial features
- you require a turnkey installer experience without building from source or using conda
- your use case is general 3D graphics rather than molecular structures

## Facets
- artifact type: application
- maturity: active
- function: graphics, data-visualization, gui, sdk
- domain: chemistry, bioinformatics, data-visualization
- platform: cross-platform, windows, python, cpp
- tags: molecular-visualization, structural-biology, 3d-rendering, protein-structure, open-core, science, linux, macos

## Member repositories
- schrodinger/pymol-open-source (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:28.954310+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:31:28.080157+00:00, confidence not recorded.
  - readme: https://github.com/schrodinger/pymol-open-source (fetched 2026-08-28T04:05:28.954310+00:00, sha e3e1d6f069ee)
  - homepage: https://pymol.org/ (fetched 2026-08-29T11:08:13.862421+00:00, sha 88a9d406ccc0)
  - site_page: https://pymol.org/support (fetched 2026-08-29T11:08:13.865471+00:00, sha ef3919e94d00)
- Data as of 2026-08-30T08:39:29.467469+00:00.