class diagram ai generator

Generate UML class diagrams from text or code with AI.

Visit class-diagram-ai.com ↗Alternatives

What it does

Class Diagram AI is an intuitive, AI-powered UML diagram generator that instantly converts plain text descriptions, user stories, or raw code into perfectly structured Mermaid.js class diagrams. Powered by DeepSeek AI, it eliminates the need for manual drag-and-drop diagramming. Key features include support for standard Mermaid.js code (native to GitHub and Markdown), instant visualization, and an intelligent "Auto-Fix" button that corrects syntax errors automatically.

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In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…
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