Mermaid (Flowchart maker)

Visual diagrams and flowcharts using short lines of text.

Mermaid (Flowchart maker)

Mermaid is a simple text-based tool that lets you create diagrams and flowcharts using plain code. It turns short lines of text into clean, visual charts without needing design software.

Key points:

  • Syntax-based: You describe your chart using text commands (for example, A --> B to show a connection).
  • Supports many diagram types: Flowcharts, sequence diagrams, class diagrams, Gantt charts, and more.
  • Lightweight: Runs directly in Markdown files, websites, or documentation tools like GitHub, Notion, and Obsidian.
  • Easy to edit: Update one line of text and the chart refreshes automatically.
  • Developer-friendly: Works well in technical documentation, wikis, and project plans.
Online FlowChart & Diagrams Editor - Mermaid Live Editor
Simplify documentation and avoid heavy tools. Open source Visio Alternative. Commonly used for explaining your code! Mermaid is a simple markdown-like script language for generating charts from text via javascript.