ERD Generator tool built for developers. Fast, reliable, and works entirely in your browser.
100% free, no signup required. Works entirely in your browser.
Open ERD GeneratorEnter your data or configure options.
The tool processes your input.
Copy or download the result.
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.
