Database Diagram Generator
Generate entity-relationship diagrams from SQL CREATE TABLE statements or a simple schema definition language.
ERD Generator Pro
Create professional Entity-Relationship Diagrams with live preview
Quick Add Entity
ERD diagram will appear here
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Diagram Controls
How to Use
- • Define entities with their attributes
- • Specify relationships between entities
- • Use PK for primary keys, FK for foreign keys
- • Preview updates automatically as you type
Features
- • Live diagram rendering
- • Entity relationship visualization
- • Export to PNG/SVG formats
- • Professional database design
Use Cases
- • Database schema design
- • System architecture planning
- • Documentation creation
- • Team collaboration
About database diagrams
Entity-relationship (ER) diagrams are visual representations of a database schema showing tables, their columns, data types, and the relationships between them. They are essential for understanding existing databases, planning migrations, documenting system architecture, and communicating with team members.
This tool accepts SQL CREATE TABLE statements or a simple schema definition and produces an interactive visual diagram. Tables are represented as boxes with their columns listed, and foreign key relationships are shown as connecting lines between tables.