Compare software

OverarchStructurizr
Free

Free and open source under the EPL-1.0 license.

 Freemium

Open source under Apache-2.0; the documentation includes a pricing page for the server…

Command line Web, Self-hosted
  • Supports C4 and several UML diagram types
  • Separates architecture models from their views
  • Reference implementation of the C4 model
  • Many diagrams generated from one text model
  • Uses data files to define models and views
  • Focused on the C4 model rather than general diagramming
  • Requires learning the Structurizr DSL
Downloadable app Web application, Self-hosted
Open source Open source
License: EPL-1.0 License: Apache-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked October 2, 2026

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