Generate entity relationship diagrams. Streamline your database workflow with this powerful tool.
erDiagram
users {
int id PK
varchar name
varchar email
}
posts {
int id PK
int user_id
varchar title
}
users ||--o{ posts : ""Enter your data or configure options.
The tool processes your input.
Copy or download the result.
Use the ERD Generator when documenting existing database structures, designing new schemas, or creating visual representations for technical specifications and team discussions. It is essential for database architects presenting designs to stakeholders and for developers onboarding onto projects with complex database schemas.
The ERD Generator creates entity relationship diagrams from SQL DDL statements compatible with PostgreSQL, MySQL, SQLite, SQL Server, and Oracle. It can also generate diagrams from plain text entity definitions. The output is a visual diagram showing tables, columns, primary keys, and relationships.
The generated ERD diagrams accurately represent your database structure and are suitable for documentation, presentations, and technical specifications. Export options include PNG and SVG formats for embedding in design documents. The diagrams follow standard database modeling notation for professional use.
All diagram generation occurs in your browser using client-side rendering. Your database schemas, table structures, and relationship definitions are never transmitted to any server. This ensures complete confidentiality of your database architecture, which is especially important for proprietary applications.