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MolView vs PyMOL: catalog facts
MolView	PyMOL
Free Free to use in the browser.	Freemium The open-source build is free; Schrödinger's PyMOL bundles require a purchased license.
Web	Windows, macOS, Linux
Sketcher and 3D viewer in one browser page Searches PubChem by name, similarity and substructure	Long-established molecular visualization tool Raytraced rendering of molecular structures
Needs a browser and an internet connection Some calculations use Jmol, which is slower than the default engine	Official installer bundles need a paid license Aimed at scientific users rather than casual learners
Web application	Downloadable app
Closed source	Open source
License not stated	License: Python-2.0
No account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.