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schema.erd

DSL ERD SQL

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Table users {
  id int [pk, increment]
  username varchar [unique]
  email varchar [not null]
  created_at timestamp [default: `now()`]
}

Table posts {
  id int [pk, increment]
  title varchar [not null]
  user_id int [ref: > users.id]
  status post_status
}

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Everything you need to
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DSL-First Editor

Write schemas in a clean, readable syntax with syntax highlighting. Tables, relationships, enums, indexes — all in code.

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Multi-Dialect SQL

Export production-ready DDL for PostgreSQL, MySQL, SQL Server, and SQLite. Dialect-specific types, quoting, and syntax.

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How it works

Three steps to your first database diagram.

Write your schema

Define tables, columns, relationships, and enums in ERDHub's clean DSL. Or import from existing SQL files.

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Export production-ready SQL for your target dialect. Share with your team and edit together in real time.

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