Best Mermaid Chart Alternatives in 2026
Updated
20 platforms from AI diagram generators ranked against Mermaid Chart on the same published basis.
- 1Mermaid Chart vs ArchitectureDiagram.ai
- 2Mermaid Chart vs Archway
- 3Mermaid Chart vs Creately
- 4Mermaid Chart vs Eraser
- 5Mermaid Chart vs OpenCharts
- 6Mermaid Chart vs flow-chart.io
- 7Mermaid Chart vs LetDraw
- 9Mermaid Chart vs Nimbalyst
- 10Mermaid Chart vs sysdraw
- 11Mermaid Chart vs Lucid Train
- 12Mermaid Chart vs OpenFlowKit
- 13Mermaid Chart vs FlowChartAI
- 14Mermaid Chart vs yUML
- 15Mermaid Chart vs AI Diagram Maker
- 16Mermaid Chart vs Diagrams.so
- 17Mermaid Chart vs InfraSketch
- 18Mermaid Chart vs Splotch
- 19Mermaid Chart vs AI Flowchart
- 20Mermaid Chart vs Archflow
- 21Mermaid Chart vs ArchGPT
Mermaid Chart alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | ArchitectureDiagram.ai | 7.4 | Free plan | $4.99/mo | API, Web |
| 2 | Archway | 7.4 | Free plan | $12/mo | API, self-hosted, Web |
| 3 | Creately | 7.4 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 4 | Eraser | 7.4 | Free plan | $15/mo | API, Browser, self-hosted, Web |
| 5 | OpenCharts | 7.4 | Free plan | $9.99/mo | API, Mac, Web, Windows |
| 6 | flow-chart.io | 7.3 | Free plan | $19/mo | API, Web |
| 7 | LetDraw | 7.3 | Free plan | $5/mo | API, self-hosted, Web |
| 9 | Nimbalyst | 6.0 | Free plan | $16.67/mo | iOS, Linux, Mac, Windows |
| 10 | sysdraw | 6.0 | Free plan | $6/mo | Web |
| 11 | Lucid Train | 5.9 | Free plan | $2.50/mo | Linux, Mac, Windows |
| 12 | OpenFlowKit | 5.9 | Free plan | Free | Web |
| 13 | FlowChartAI | 5.4 | No | — | Web |
| 14 | yUML | 5.2 | No | — | Web |
| 15 | AI Diagram Maker | 5.1 | No | — | Web |
| 16 | Diagrams.so | 5.1 | No | — | Web |
| 17 | InfraSketch | 5.1 | No | — | Web |
| 18 | Splotch | 5.1 | No | — | Web |
| 19 | AI Flowchart | 5.0 | No | — | Web |
| 20 | Archflow | 5.0 | No | — | Web |
| 21 | ArchGPT | 5.0 | No | — | Web |
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Questions about Mermaid Chart alternatives
What is the best alternative to Mermaid Chart?
ArchitectureDiagram.ai, number 1 in AI diagram generators with a score of 7.4 out of 10. The others here: Archway, Creately, Eraser and 16 more.
What is the best free alternative to Mermaid Chart?
ArchitectureDiagram.ai is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.
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.