Software · Education & science

ChemCanvas

Chemical structure drawing tool.

Completely free
Windows and Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: GPL-3.0+ — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: Windows and LinuxEstablished by Linux: Flathub, Unspecified source · Windows: Unspecified source
Publisher: Arindam Chaudhuri
Latest version: 0.14.8 (13 August 2026)
Latest activity: 13 August 2026
Source code: github.com/ksharindam/chemcanvas

Overview

File formats mentioned: PNG and SVG.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

At a glance

ChemCanvas is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

A very intuitive and easy to use 2D chemical structure drawing tool. You can draw molecules and reactions, mechanisms, generate SMILES, save drawings as PNG or SVG. Or you can calculate various properties of molecules. Features : Supports most popular file formats Supports modern file formats like Marvin MRV, Chemdraw CDXML Export to PNG, SVG, and Editable SVG Many bond types including wavy bond, Cis/Trans, Bold double, Any Bond etc Aromaticity detection and add delocalization ring Search and load structure from PubChem Reagent bottle label printing tool

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Facts collected from Unspecified source (platforms) — 9 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 9 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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