Which diagram types are supported?

All 30 Mermaid v12 diagram types, including flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, pie charts, C4 models, mindmaps, ZenUML, use case diagrams, and user journeys. Each comes with a one-click template.

What can the Rovo AI agent do?

The agent chats with you about diagrams on pages and blog posts: create ("make a flowchart of our deployment process"), read (get the diagram source and version back in chat), update ("make this better" revises in place with macro settings preserved), and convert (turn code blocks already on the page into rendered diagrams).

Can I edit a diagram after saving?

Yes. Click any existing Mermaid macro and select Edit to reopen the editor. Your source code and settings are fully preserved, so you can continue editing exactly where you left off.

Does it work in dark mode?

Yes. Diagrams automatically adapt to Confluence dark mode. When a reader has the dark theme enabled, the diagram renders with matching colors with no extra configuration.

Confluence App

Mermaid Plus Diagrams & AI Agent for Confluence

Name: Mermaid Plus Diagrams & AI Agent for Confluence
Rating: 4.5 (50 reviews)

Mermaid Plus Diagrams & AI Agent for Confluence brings text-based diagramming into Confluence — plus a Rovo AI agent that creates, reads, updates, and converts diagrams from chat, right on the page. Write Mermaid syntax in a code editor and see the diagram render live. All 30 Mermaid v12 diagram types are supported — flowcharts, sequence, class, state, Gantt, pie, ER, C4, mindmaps, ZenUML, use case, and more — each with a one-click template so you never start from a blank canvas.

Get it on the Atlassian Marketplace User Guide

Free for up to 10 users · Cloud · Atlassian Marketplace

Features

Why teams choose Mermaid Plus Diagrams & AI Agent

Rovo AI agent

Chat to create, read, update, and convert diagrams — "make a flowchart of our deployment process" renders in place, and code blocks on the page convert to diagrams.

30 diagram types

Flowcharts, sequence, class, state, ER, Gantt, pie, C4, mindmaps, ZenUML, use case and more — every Mermaid v12 type with a ready-made template.

Live preview

Your diagram renders as you type in a side-by-side editor, so you catch syntax errors before saving.

Themes & colors

Switch the look with built-in themes or set custom colors and fonts to match your brand.

Dark mode

Diagrams follow Confluence dark mode automatically — no separate styling needed.

Getting started

How it works

1
Insert the macro
Edit a Confluence page, type /mermaid, and select Mermaid Plus Diagrams & AI Agent for Confluence from the macro list.
2
Write or paste Mermaid code
Use the built-in editor, or click a Quick Template to start from a working example of any diagram type. Or just ask the Rovo agent in chat.
3
Preview and save
Watch the live preview update as you type. When it looks right, click Save to render the diagram onto the page.

FAQ

Frequently asked questions

No. Confluence has no built-in Mermaid renderer. You need a Marketplace app like Mermaid Plus Diagrams & AI Agent for Confluence to render Mermaid syntax inside pages. Once installed, any user can insert a diagram by typing /mermaid in the editor.

Comparison

How Mermaid Plus Diagrams & AI Agent compares

Feature	Mermaid Plus Diagrams & AI Agent	Alternatives
Diagram types	30 types + AI agent with Quick Templates	10-15 or manual layout
Editing	Live preview + code editor	Drag-and-drop only
Version control	Text-based, diffable in page history	Binary images, no diff
Themes	Custom colors, fonts, dark mode	Fixed styling
Templates	One-click per diagram type	Start from blank
Update speed	Edit one line, redraws instantly	Re-draw manually

Use cases

What teams do with Mermaid Plus Diagrams & AI Agent

Document system architecture with C4 and component diagrams in engineering wikis
Create flowcharts for approval processes and decision trees in operations docs
Visualize sprint timelines and dependencies with Gantt charts on project pages
Build ER diagrams for data models in database documentation
Add sequence diagrams to API design docs showing service interactions

Learn more

Guides & tutorials

Scenario solutions

Part of these solutions

Put AI agents to work on your content

A chat assistant can describe the change you want to a diagram or a changelog. It cannot make it. Scoped AI agents can — and the difference is one install, not a project.

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Ready to try Mermaid Plus Diagrams & AI Agent for Confluence?

Install from the Atlassian Marketplace. Free for up to 10 users.

Get it now