# PlantUML alternatives

The highest-scoring alternative to PlantUML in Diagramming is **Gliffy** (72/100), against PlantUML's 6/100. Ranked on independent signals, not user reviews. No vendor pays for placement.

| # | Alternative | Score | Confidence | Compare |
|--:|---|--:|---|---|
| 1 | [Gliffy](https://www.vioscale.ai/software/gliffy) | 72 | 56% (medium) | [PlantUML vs Gliffy](https://www.vioscale.ai/compare/gliffy-vs-plantuml) |
| 2 | [yEd Graph Editor](https://www.vioscale.ai/software/yed-graph-editor) | 70 | 25% (low) | [PlantUML vs yEd Graph Editor](https://www.vioscale.ai/compare/plantuml-vs-yed-graph-editor) |
| 3 | [Creately](https://www.vioscale.ai/software/creately) | 58 | 45% (low) | [PlantUML vs Creately](https://www.vioscale.ai/compare/creately-vs-plantuml) |
| 4 | [Mermaid](https://www.vioscale.ai/software/mermaid) | 55 | 22% (low) | [PlantUML vs Mermaid](https://www.vioscale.ai/compare/mermaid-vs-plantuml) |
| 5 | [Lucidchart](https://www.vioscale.ai/software/lucidchart) | 49 | 26% (low) | [PlantUML vs Lucidchart](https://www.vioscale.ai/compare/lucidchart-vs-plantuml) |
| 6 | [Cacoo](https://www.vioscale.ai/software/cacoo) | 41 | 26% (low) | [PlantUML vs Cacoo](https://www.vioscale.ai/compare/cacoo-vs-plantuml) |

PlantUML itself ranks #7 of 7 in Diagramming.

---
*Source: Vioscale (https://www.vioscale.ai/alternatives/plantuml). Generated 2026-09-01T15:22:50.165Z.*