Compare software

Gaphor vs IcePanel: catalog facts
Gaphor	IcePanel
Free The software is free under its open-source licence. Hosting, hardware and external…	Freemium Self-serve sign-up, with paid plans listed on the pricing page and demos for larger teams.
Windows, macOS, Linux	Web
It keeps a real UML 2 data model behind the diagrams, so elements are reused across views rather…	Built around the C4 model for software architecture Interactive model rather than static drawings
It is a modelling tool rather than a quick diagram editor, and it does not generate code from…	Aimed at software teams rather than general diagramming Online only with an account
Downloadable app	Web application
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Account 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.