Dia
6.1#30 in diagram softwareFree planFree planLinuxmacOSWindows
VisitDia vs Structurizr
Structurizr
8.3#1 in diagramming softwareFrom £300 a monthFree planWebAPILinuxmacOS
VisitWhat both publish
| Fact | Dia | Structurizr |
|---|---|---|
| Diagram types | Entity-relationship diagrams; UML diagrams; flowcharts; network diagrams | system landscape,system context,container,component,code,dynamic,deployment,custom,filtered,image |
| Free plan | Yes | Yes |
| License | The site describes Dia as free software under the GNU General Public License, GPLv2. | The public Structurizr repository is released under the Apache-2.0 license. |
| Purpose | Dia is a program for drawing structured diagrams. | Structurizr is a models-as-code tool for creating multiple software architecture diagrams from one C4 model using Structurizr DSL. |
| Support | For problems, the site directs users to its FAQ and Dia bug reports. | Support for server licenses is available through the GitHub issue tracker. |
Dia plans
- DiaFree
Structurizr plans
- 1–20 unique users£300 a month
- 21–50 unique users£600 a month
- 51–100 unique users£900 a month
- 101–250 unique users£1,200 a month
- 251–500 unique users£1,500 a month
- 501–1000 unique users£1,800 a month
Pick Dia if…
Dia suits people who need a desktop tool for structured diagrams such as UML, flowcharts, or network layouts. It may also fit workflows that need to import Dia XML or Visio XML and export to one of its listed formats.
Pick Structurizr if…
Structurizr suits software teams that want to maintain architecture diagrams from a shared C4 model. Its tools and export options may suit teams choosing between browser, local, CLI, or self-hosted workflows.