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MolView vs ChemCanvas: catalog facts
MolView	ChemCanvas
Free Free to use in the browser.	Free Free and open source under GPL-3.0-or-later.
Web	Windows, Linux
Sketcher and 3D viewer in one browser page Searches PubChem by name, similarity and substructure	Reads and writes SMILES, Molfile, MRV and CDXML Exports to PDF, PNG and editable SVG
Needs a browser and an internet connection Some calculations use Jmol, which is slower than the default engine	No macOS build Supports fewer file formats than commercial chemistry suites
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
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.