# Overview

> If you are using **Confluence Cloud**, please see [this page](https://fulstech.gitbook.io/docs/mermaid-uml-diagrams-and-graphviz-diagrams-for-confluence/confluence-cloud/overview).
>
> The Server and Data Center edition does not support PlantUML macro.

**Mermaid UML Diagrams and Graphviz Diagrams for Confluence Server** is the app that renders UML diagrams and Graphviz diagrams inside Confluence Server.

You can install the app by following the instructions at [Atlassian Marketplace](https://marketplace.atlassian.com/apps/1222120/uml-diagrams-and-graphviz-for-confluence?hosting=server\&tab=overview).

Using [Mermaid ](https://mermaid-js.github.io/mermaid/#/)and [Graphviz ](https://graphviz.org/)syntax, you can draw various diagrams, such as Flowchart, Sequence Diagram, Class Diagram, State Diagram, User Journey.

The text-based format minimizes the effort required to maintain diagrams and increase the reusability of content.

![Mermaid UML Diagrams and Graphviz Diagrams for Confluence](https://3588362646-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma7ua4NoSptEMaVrDMS%2Fsync%2Fa0960420e6357cfa708e70da1e1f36009dd51f24.png?generation=1621504371001121\&alt=media)