Mermaid Diagram Editor

Create flowcharts, sequence diagrams, ER diagrams, Gantt charts, and more using Mermaid's simple text syntax. Live preview, export as SVG or PNG, and share via URL.

001

MERMAID CODE

flowchart TD
    A[Start] --> B{Is it valid?}
    B -->|Yes| C[Process Data]
    B -->|No| D[Return Error]
    C --> E[Save to DB]
    E --> F[Send Response]
    D --> F
    F --> G[End]

186 chars

002

PREVIEW

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Diagram preview will appear here

ABOUT MERMAID DIAGRAM EDITOR

Mermaid is a JavaScript-based diagramming and charting tool that renders Markdown-inspired text definitions to create diagrams dynamically. It's natively supported in GitHub, GitLab, Notion, and many other platforms. This editor provides a live preview environment for all major Mermaid diagram types.

Supported Diagram Types: Flowcharts (TD, LR, BT, RL directions), Sequence diagrams with participants and messages, Class diagrams with inheritance, Entity Relationship diagrams, Gantt charts with task scheduling, Pie charts, Git graphs, State machines, and Mind maps.

Features: Live real-time preview as you type, one-click SVG and PNG export, 9 starter templates for each diagram type, shareable URL encoding (click SHARE to get a link with your current diagram), and pure client-side rendering — your code never leaves the browser.