Skip to main content
Mermaid lets you build flowcharts, sequence diagrams, Gantt charts, and other diagrams using text and code. For a complete list of supported diagram types and syntax, see the Mermaid documentation.
Mermaid flowchart example
```mermaid
  flowchart LR
    subgraph subgraph1
        direction TB
        top1[top] --> bottom1[bottom]
    end
    subgraph subgraph2
        direction TB
        top2[top] --> bottom2[bottom]
    end
    %% ^ These subgraphs are identical, except for the links to them:

    %% Link *to* subgraph1: subgraph1 direction is maintained
    outside --> subgraph1
    %% Link *within* subgraph2:
    %% subgraph2 inherits the direction of the top-level graph (LR)
    outside ---> top2
```

Interactive controls

All Mermaid diagrams include interactive zoom and pan controls that appear in the bottom-right corner of the diagram.
  • Zoom in/out: Use the zoom buttons to increase or decrease the diagram scale.
  • Pan: Use the directional arrows to move around the diagram.
  • Reset view: Click the reset button to return to the original view.
The controls are especially useful for large or complex diagrams that don’t fit entirely in the viewport.

Syntax

To create a Mermaid diagram, write your diagram definition inside a Mermaid code block.
```mermaid
// Your mermaid diagram code here
```