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Gaphor vs Visual Paradigm: catalog facts
Gaphor	Visual Paradigm
Free The software is free under its open-source licence. Hosting, hardware and external…	Freemium Paid editions with a free trial; some tools such as the VPasCode online editor are free.
Windows, macOS, Linux	macOS, Web
It keeps a real UML 2 data model behind the diagrams, so elements are reused across views rather…	Covers UML, SysML, BPMN and enterprise architecture in one tool Desktop and browser versions
It is a modelling tool rather than a quick diagram editor, and it does not generate code from…	Broad feature set takes time to learn Full features require a paid edition
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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