AI Diagram Maker is a web-based tool that uses AI to instantly generate and refine software architecture diagrams from plain-English descriptions.

Instead of dragging boxes and arrows manually, you simply describe your system in natural language — for example,

“A web app with React frontend, Node.js backend, and PostgreSQL database.”

AI Diagram Maker then creates a clean, professional diagram (flowchart, ERD, sequence, or architecture view) using the D2 “diagram-as-code” language under the hood. You can edit it conversationally — e.g., “add caching layer” or “make this a sequence diagram.”