AI Diagram Maker

About

AI Diagram Maker is a web-based tool for generating and refining software architecture diagrams (flowcharts, sequence diagrams, ERDs, etc.) using natural language. Describe your system—or upload notes—and it automatically creates a visual diagram. It supports a “plan → describe → design → refine” workflow, with Plan Mode enabling structured thinking for complex systems before diagram generation. Key Features * Text-to-Diagram generation from plain English * Plan Mode for complex diagrams * Natural language editing + context-aware UI controls * Supports multiple diagram types * Powered by D2 (diagram-as-code) * Editable source code view * MCP server support for agent-based workflows * Export as PNG, SVG, PDF, or MermaidJS * Publish diagrams with shareable URLs Built for developers and architects, it automates diagram creation, reduces manual layout work, and enables fast iteration, consistent outputs, and easy sharing—turning ideas into production-ready visuals in minutes.