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Mermaid vs PlantUML vs Graphviz for Confluence: Which Diagram Tool to Choose

· 7 min read
Quick Answer

Mermaid, PlantUML, and Graphviz are the three most popular text-based diagramming languages. Mermaid is the easiest to learn and covers the widest range (29 diagram types). PlantUML excels at detailed UML with precise notation control. Graphviz is best for technical network and dependency graphs. Most Confluence teams should start with Mermaid and add Graphviz for network diagrams if needed.

What you'll learn
  1. The strengths and weaknesses of each tool
  2. Which diagram types each one supports
  3. How easy each is to learn and use
  4. A practical recommendation for Confluence teams

Text-based diagramming — writing a few lines of code that render into a diagram — is how modern teams keep diagrams in sync with their documentation. No more drawing boxes by hand in Visio, exporting screenshots, and pasting them into Confluence where they go stale. With text-based diagrams, you edit the source and the diagram redraws instantly.

But there are three major text-based diagramming languages, and they are not interchangeable. Each has different strengths, different syntax, and different ideal use cases. This guide compares Mermaid, PlantUML, and Graphviz so you can choose the right one (or combination) for your Confluence team.

Confluence Graphviz Diagrams: DOT Language FAQ & Examples

· 16 min read

Graphviz has been the backbone of automated graph visualization for over three decades. Originally developed at AT&T Labs, it powers dependency graphs in build systems, call graphs in profilers, and database schemas in ORMs -- anywhere that diagrams need to be generated from structured data rather than drawn by hand. Graphviz Charts for Confluence brings that same engine directly into your Confluence pages, letting you write DOT language descriptions and get polished, auto-laid-out diagrams without leaving your wiki.

Best Diagram Tool for Confluence — Mermaid vs Excalidraw vs Graphviz

· 8 min read

Looking for the best diagram tool for Confluence? Confluence has no built-in diagramming, so every team adds a Marketplace app — but the right choice depends entirely on what you draw and how you prefer to work. This guide compares the three strongest options — Mermaid Plus for Confluence, Excalidraw plus Whiteboards for Confluence, and Graphviz Charts for Confluence — so you can pick the diagram tool that fits your team instead of guessing.

Quick answer

For most Confluence teams, Mermaid Plus is the best diagram tool — it covers the widest range (29 diagram types), is the easiest to learn, and renders text into diagrams that version cleanly with your docs. Pick Excalidraw Plus if you need freehand whiteboarding and wireframes. Pick Graphviz Charts for dense network and dependency graphs. Many teams install more than one.

What you'll learn
  1. Which diagram tool fits each type of Confluence team
  2. The strengths and trade-offs of Mermaid, Excalidraw, and Graphviz
  3. Pricing, hosting, and integration differences
  4. A decision framework so you can choose in under a minute