Describe your entities in plain English — or paste your schema — and get tables with typed columns and labeled relationships, laid out automatically
No sign-up required • Free to try
Paste your CREATE TABLE statements and the AI draws every table, column type, and foreign-key relationship — no database connection needed
Describe your data model and AI creates a professional database schema diagram with tables, columns, relationships, and constraints
Describe the domain once and move between conceptual, logical, and physical views — the AI carries entities, attributes, and keys across each level
Common questions about ai er diagram generator
It reads the entities and cardinality cues in your description ("an order has many items", "each patient belongs to one department") and draws labeled relationship edges between the right tables. Foreign-key columns are added to the child table so the diagram matches what you would actually implement.
Yes — paste your CREATE TABLE statements directly into the prompt, or attach a .sql file. The AI parses table names, column types, and foreign-key constraints and turns them into a diagram, which is usually faster than reverse-engineering tools that need a live database connection.
Everything is editable on the canvas: rename tables, add or retype columns, redraw relationships, group tables into domains. You can also keep refining with follow-up instructions like "split the address fields into their own table".
Those tools require you to write their DSL or click tables together by hand. Here the input is plain English (or raw SQL), and the same canvas also handles the surrounding architecture — pipelines, warehouses, BI — so your ERD can live inside the bigger data-platform picture instead of a separate tool.
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