Back to Tools

Mermaid Diagram Generator

Create flowcharts, sequence diagrams, and more with simple text syntax

Choose Diagram Type

Select a template to get started or write your own

Mermaid Code

Write or paste your diagram definition

Preview

Your rendered diagram appears here

Click "Render Diagram" to see your diagram

Pro Tip

Mermaid diagrams render as SVG, so they scale perfectly on any device. You can paste the generated code directly into your HTML, Markdown files (GitHub, Notion, etc.), or documentation tools.

Why Use Mermaid Diagrams on Your Website?

Mermaid is a JavaScript-based diagramming tool that renders markdown-like text into professional diagrams. Unlike static images, Mermaid diagrams are:

Benefits for Your Website

Developer-Friendly
  • Version control friendly (text-based)
  • Easy to update without design tools
  • Works in Markdown (GitHub, Notion)
  • No image files to manage
SEO and Performance
  • Renders as SVG (infinitely scalable)
  • Faster than images (no file download)
  • Accessible with screen readers
  • Responsive by default

Common Use Cases

  • Technical documentation - System architecture, API flows, database schemas
  • Process visualization - Onboarding flows, checkout processes, decision trees
  • Project planning - Gantt charts, timelines, roadmaps
  • Business diagrams - Org charts, user journeys, state machines
  • Educational content - Algorithms, data structures, concept maps