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Mermaid Diagram Syntax?

Overview​

Mermaid diagram syntax is a lightweight, text-based language used to create various types of diagrams and charts. It allows users to define diagrams using simple, readable code that is then rendered into visual representations.

Key Features of Mermaid Diagram Syntax​

  1. Text-Based: Diagrams are described using plain text, which makes it easy to create, edit, and version-control diagrams alongside code.

  2. Simple Syntax: The syntax is designed to be intuitive, allowing users to quickly define elements such as nodes, links, and labels without needing complex graphic tools.

  3. Support for Multiple Diagram Types: Mermaid supports various diagram types, including flowcharts, sequence diagrams, class diagrams, state diagrams, and Gantt charts.

  4. Integration: Mermaid diagrams can be integrated into documentation, wikis, and other tools that support Markdown, providing a seamless way to include visualizations in text-based documents.

  5. Customization: Users can customize the appearance and layout of diagrams using Mermaid’s syntax, which includes options for styling, alignment, and arrangement of elements.

Example of Mermaid Syntax​

For a simple flowchart, the Mermaid syntax might look like this:

graph TD
    A[Start] --> B[Step 1]
    B --> C{Decision}
    C -->|Yes| D[Step 2]
    C -->|No| E[Step 3]
    D --> F[End]
    E --> F

In this example:

  • graph TD specifies the type of diagram (a top-down flowchart).
  • A, B, C, D, E, and F are nodes.
  • Arrows (-->) define the flow or connections between nodes.
  • and |Yes|, |No| indicate decision points and options.

Mermaid syntax allows users to create and maintain diagrams in a text-based format, making it accessible and efficient for various documentation and visualization needs.

More examples​

Check out the various examples on the child pages of this section.