With the Mermaid app, you can easily create code-based diagrams inside Miro.
How to install the app
You can install the app from Miro Marketplace or by following this link. You can also install the app by simply adding it to the Creation toolbar as shown below. You’ll need to select a Miro team to complete the installation.
⚠️ Non-admin users can’t install apps if this is not allowed in team settings.
Creating diagrams and adding them to Miro boards
As you install the app, you'll see it on your Creation toolbar.
The app has a default sample code. As you change the code to build your diagram, the diagram is refreshed in the preview area on the right.
Changing a diagram code
The Mermaid app has several sample diagrams available at the bottom left corner - you can choose one of these and then customize it for your needs.
Change the size of the code editor pane by dragging it from its right edge.
Changing the size of the code editor
To learn more about the syntax Mermaid uses, refer to the official documentation. You can also access the documentation from the bottom left corner of the app panel.
As you finish building your diagram, click Add to board. The diagram will be added to the board as an image. You can download the image or share the board with the diagram with your collaborators.
Adding a diagram to the board
You can also edit Mermaid diagrams directly within the Miro board.
- Click the diagram to select it
- Click the Mermaid icon in the Creation toolbar
- The Mermaid editor will open. Make your changes and click Update Diagram
You will be returned to your Miro board and your diagram will be updated
Updating a Mermaid diagram in Miro