1 min read 263 words Updated Mar 14, 2026 Created Mar 14, 2026

Mermaid Graphs

Kiln includes native support for Mermaid.js, allowing you to create complex diagrams and visualizations using simple text-based syntax.

Just like in Obsidian, you can define flowcharts, sequence diagrams, Gantt charts, and more directly within your Markdown files.

Usage

To create a diagram, create a code block and specify mermaid as the language.

```mermaid
graph TD;
    A[Start] --> B{Is it working?};
    B -- Yes --> C[Great!];
    B -- No --> D[Debug];
```
graph TD; A[Start] --> B{Is it working?}; B -- Yes --> C[Great!]; B -- No --> D[Debug];

Performance & Optimization

Mermaid is a powerful library, but it can be heavy. Kiln optimizes this using a Lazy Loading strategy to ensure your site remains lightning fast.

  • Conditional Loading: The Mermaid JavaScript library (approx. 800KB) is only downloaded if the specific page you are visiting actually contains a diagram.
  • Zero Blocking: If a diagram is present, the script loads asynchronously, ensuring it never blocks the initial page render.

Theme Adaptation

Kiln integrates Mermaid directly with its theming engine.

  • Auto-Theming: Diagrams automatically adjust their colors to match your site's Light or Dark mode.
  • Dynamic Switching: If a user toggles the theme while viewing a page, the diagrams will automatically re-render in real-time to match the new aesthetic.

Supported Diagram Types

Kiln supports all standard Mermaid diagram types, including:

  • Flowcharts (graph TD)
  • Sequence Diagrams (sequenceDiagram)
  • Class Diagrams (classDiagram)
  • State Diagrams (stateDiagram)
  • Entity Relationship Diagrams (erDiagram)
  • Gantt Charts (gantt)
  • Pie Charts (pie)
  • Mindmaps (mindmap)