Mermaid Chart

You type Mermaid syntax and the diagram renders live as you edit. The whole point is speed: a few lines of text replace the usual drag, align, and resize loop, and the layout updates itself when the structure changes.

An embedded AI chat turns a plain-language description into a working diagram. It is a strong way to get past a blank page, but the generated syntax is a starting point you should check and clean up before you rely on it.

Beyond raw text, there is a visual editor for layout, colors, and themes, so you can polish a diagram without hand-tuning every style rule. This is the layer that makes the tool usable for people who do not want to write code at all.

Paid plans add multi-user editing, so several people can work on the same diagram at once. Comments let reviewers flag a specific part of the diagram, which keeps feedback attached to the thing it is about.

Official plugins cover VS Code, JetBrains IDEs, Confluence, Jira, Google Docs, and Microsoft PowerPoint and Word. That means the diagram can live inside the app you already open, rather than in a separate tab.

A presentation mode shows diagrams as a slideshow, and a virtual whiteboard gives you a looser space to draft before you commit to a structure. Both reduce the need to move a diagram somewhere else just to show it.

The tool supports the full Mermaid set: flowcharts, sequence diagrams, class diagrams, state diagrams, Gantt charts, timelines, ER diagrams, and more. For teams standardizing on Mermaid, everything runs through one editor.

You can import existing Mermaid code and export diagrams for use elsewhere, which matters when a team already has years of Mermaid snippets scattered across repos and docs.