What is Capable Diagrams

Capable Diagrams is a diagramming app for Confluence Cloud. It puts the drawing surface inside the page, so a diagram is part of the document rather than an image pasted next to it.


#The problem it removes

Without it, the usual workflow is: draw somewhere else, export a PNG, paste it into Confluence. That works exactly once. The moment the design changes, the person who needs to update it either lacks the original file, lacks the tool, or does not know where either lives. So the page quietly goes stale and everyone learns not to trust it.

When the diagram lives on the page, the person reading it is the person who can fix it.


#Who it is for

If you are

You will mostly use

An engineer documenting a system

Mermaid or PlantUML, because the source belongs in review. See Diagram types.

An architect mapping infrastructure

draw.io, for its icon sets and precise placement. See Guides.

A business analyst modelling a process

BPMN and DMN, which are checkable standards rather than boxes.

Anyone running a workshop

Excalidraw, because a rough sketch invites argument and a polished one does not.


#What makes it different

  • One app, many notations. Thirty languages and six editors, rather than one tool per notation.

  • The source stays yours. Diagrams are stored in your Confluence site. See Security and privacy.

  • It leaves the page. Diagrams render in exports, on published sites and in Jira. See Integrations.



A diagram nobody can edit is a screenshot with extra steps.