AI Mermaid Diagram Creator

Using GPT-4o-mini via OpenRouter

Your diagram will appear here

AI Mermaid Sketcher

Describe a diagram in plain language and let AI generate valid Mermaid code. Edit the code anytime and see the live preview instantly.

How it works

  1. Write what you want in the AI Prompt tab.
  2. Click Generate or press Ctrl+Enter.
  3. Review and refine the Mermaid code in the Mermaid Code tab.
  4. Preview updates live on the right.
  5. Export the diagram as SVG from the header.

Tips

  • Be specific about nodes, relationships, and flow.
  • Mention the diagram type (flowchart, sequence, class, etc.).
  • Use Mermaid syntax for fine-tuning after generation.
  • Toggle theme from the header to match your preference.

Create beautiful diagrams with Mermaid syntax and AI assistance. Made with precision and care.