Mermaid live editor

Write Mermaid code and watch the diagram draw itself. Start from a flowchart, sequence diagram, Gantt chart or pie chart, then export it.

Runs in your browser. Nothing is uploaded.
Diagram

How to use it

  1. Pick a template, or paste the Mermaid code your AI tool wrote.
  2. Edit the code; the diagram updates as you type.
  3. Fix anything flagged as a syntax error.
  4. Download a PNG for slides and docs, or an SVG for the web.

Questions

What is Mermaid?

Mermaid is a way to draw diagrams with text. AI coding tools often use it in plans and specs, inside ```mermaid code blocks.

Which diagram types work?

All the main Mermaid types, including flowcharts, sequence, class, state, entity-relationship, Gantt, pie, mindmap and timeline diagrams.

Is my diagram uploaded?

No. It's drawn in your browser.

Can I see diagrams inside my .md files?

Yes, with MDLumen for Mac. It draws Mermaid blocks right in the document and in Finder's Quick Look.

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