Is Mermaid AI Playground free?

Yes, Mermaid AI Playground is completely free to use. No account, registration, or payment is required. All 22 diagram types and AI features are available at no cost.

What diagram types does Mermaid AI Playground support?

Mermaid AI Playground supports all 22 Mermaid v11 diagram types: flowchart, sequence, class, state, ER, Gantt, journey, pie, gitGraph, timeline, mindmap, quadrant chart, requirement, sankey, block, packet, kanban, architecture, XY chart, C4, and ZenUML.

Can I use Mermaid AI Playground with ChatGPT?

Yes! Mermaid AI Playground provides an MCP server at www.mermaid.help/api/mcp that works with ChatGPT Apps, Claude via MCP, Cursor, Windsurf, and other AI assistants that support the Model Context Protocol.

How does the AI diagram generation work?

The AI uses Google Gemini to convert your natural language description into valid Mermaid diagram code. It can also fix syntax errors and enhance existing diagrams for clarity.

Support & Contact | Mermaid AI Playground

Get in Touch

Have a question, found a bug, or want to suggest a new feature? I'm here to help. Mermaid AI Playground is maintained with the goal of making diagramming accessible for everyone.

Contact Details

Email Support — For bug reports, technical help, or general inquiries, email me at mihir@bug59.com.
Professional Network — Connect on LinkedIn for updates and networking.

Common Topics

Bug Reports — Please include the Mermaid code that caused the error and a brief description of what happened.
Feature Requests — I love hearing how to make this tool better. Don't hesitate to share your ideas!
MCP Integration — If you need help connecting Mermaid AI to ChatGPT or other AI assistants, check the MCP documentation.

Availability

As a solo project, response times typically range between 24-48 hours. I appreciate your patience and feedback as we continue to improve the tool.