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ChemCanvas vs Molsketch: catalog facts
ChemCanvas	Molsketch
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under GPL-2.0-only.
Windows, Linux	Linux
Reads and writes SMILES, Molfile, MRV and CDXML Exports to PDF, PNG and editable SVG	Imports and exports formats supported by OpenBabel Exports SVG, bitmap images, and PDF
No macOS build Supports fewer file formats than commercial chemistry suites	Focused on two-dimensional molecular structure diagrams
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-2.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 8, 2026

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