ERD Generator

Generate ER diagram code from SQL DDL — export as Mermaid.js, PlantUML, or Graphviz DOT

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Generated ERD Code

erDiagram
  USERS ||--o{ ORDERS : "has"
  USERS {
    int id PK
    string name
  }

Tables

0

Relationships

0

Format

-

Lines

0

What Is an ER Diagram?

An Entity-Relationship Diagram (ERD) is a visual representation of database tables and their relationships. It shows entities as boxes, attributes as fields, and relationships as lines connecting foreign keys. Generated code can be used with Mermaid.js (renders in GitHub Markdown), PlantUML, or Graphviz.

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