AI Database Schema & ER Architect
Design normalized schemas, relationships, indexes, and Mermaid ER diagrams from a domain description
Schema inputs
About this tool
Generate 3NF database schemas, relationships, indexes, and Mermaid ER diagrams for PostgreSQL, MySQL, or MongoDB. AI Database Schema & ER Architect runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- AI Database Schema & ER Architect is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use AI Database Schema & ER Architect?
Open AI Database Schema & ER Architect, enter or paste your input, and copy the result. The page works without an account.
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