Best Diagram Designer Alternatives in 2026
Updated
20 platforms from diagram software ranked against Diagram Designer on the same published basis.
- 1Diagram Designer vs Cacoo
- 2Diagram Designer vs Structurizr
- 3Diagram Designer vs Eraser
- 4Diagram Designer vs IcePanel
- 5Diagram Designer vs Creately
- 6Diagram Designer vs Hava
- 7Diagram Designer vs Lucidchart
- 8Diagram Designer vs PlantUML
- 9Diagram Designer vs draw.io
- 10Diagram Designer vs Astah Professional
- 11Diagram Designer vs Visual Paradigm
- 12Diagram Designer vs EdrawMax
- 13Diagram Designer vs Microsoft Visio
- 14Diagram Designer vs Archi
- 15Diagram Designer vs Bizagi Modeler
- 16Diagram Designer vs Buddi
- 17Diagram Designer vs Modelio
- 18Diagram Designer vs Pencil Project
- 19Diagram Designer vs ProcessOn
- 20Diagram Designer vs yEd Graph Editor
Diagram Designer alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Cacoo | 7.4 | Free plan | $6/mo | API, self-hosted, Web |
| 2 | Structurizr | 7.4 | Free plan | £25/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | Eraser | 7.3 | Free plan | $15/mo | API, Browser, self-hosted, Web |
| 4 | IcePanel | 7.3 | Free plan | $40/mo | API, Web |
| 5 | Creately | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 6 | Hava | 7.2 | Free plan | $59/mo | API, self-hosted, Web |
| 7 | Lucidchart | 7.2 | Free plan | $9/mo | Android, API, Browser, iOS, Web |
| 8 | PlantUML | 7.2 | Free plan | Free | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 9 | draw.io | 6.7 | Free plan | Free | Web, Windows, Mac, Linux, iOS, Android |
| 10 | Astah Professional | 6.6 | No | — | API, Linux, Mac, Windows |
| 11 | Visual Paradigm | 6.0 | Free plan | $4/mo | Web |
| 12 | EdrawMax | 5.9 | Free plan | $5.90/mo | Android, iOS, Linux, Mac, Web, Windows |
| 13 | Microsoft Visio | 5.9 | No | $5/mo | Mac, Web, Windows |
| 14 | Archi | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 15 | Bizagi Modeler | 5.8 | Free plan | Free | Web, Windows |
| 16 | Buddi | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 17 | Modelio | 5.8 | Free plan | Free | Linux, self-hosted, Windows |
| 18 | Pencil Project | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 19 | ProcessOn | 5.8 | Free plan | Free | Android, iOS, Web |
| 20 | yEd Graph Editor | 5.8 | Free plan | Free | Linux, Mac, Windows |
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Questions about Diagram Designer alternatives
What is the best alternative to Diagram Designer?
Cacoo, number 1 in diagram software with a score of 7.4 out of 10. The others here: Structurizr, Eraser, IcePanel and 16 more.
What is the best free alternative to Diagram Designer?
Cacoo is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.
Is there an open-source alternative to Diagram Designer?
Yes: draw.io.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.