Free Online ER Diagram Maker with SQL Export

Design an entity-relationship diagram directly in the editor above. Add tables and columns, connect foreign keys, choose crow’s foot cardinality, and keep the visual model aligned with executable database definitions.

SQL Designer supports MySQL, PostgreSQL, SQLite, Oracle, SQL Server, and MS Access. You can start without an account, import an existing CREATE TABLE script, and export the finished design as SQL, JSON, a Laravel migration, or PNG.

From diagram to database schema in one browser tab

The editor is the primary ER diagram maker for sql-designer.com: it opens with a sample schema and is ready to edit immediately. For guidance rather than tool use, read the ER diagram tools guide, follow the step-by-step schema tutorial, or compare database design software features.