Mermaid vs PlantUML
No leader: the top candidate Mermaid has only 0.22 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for diagramming. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Mermaid
A tool that lets users quickly create detailed diagrams, flowcharts, and visualizations by writing simple text-based syntax, accessible to both programmers and non-technical users.
PlantUML
An open-source, browser-based application that converts simple text syntax into visual diagrams, supporting multiple diagram types including UML, sequences, flowcharts, and data visualizations.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Mermaid
- GitHub
PlantUML
Not documented yet.
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.