ERD And Schema Designer

The ERD surface is both a browser aid and a design surface.

Explore A Schema

Seed a diagram from a live connection to inspect tables, columns, primary keys, foreign keys, and relationships. Move tables to make the shape readable and keep large schemas focused on one subject area at a time.

Design Changes

Create or edit tables, columns, keys, and relationships in the designer before generating SQL. Forward engineering emits ordered CREATE and ALTER statements so foreign-key dependencies are applied after the base tables exist.

Exchange Diagrams

Export diagram JSON when sharing a design or keeping a review artifact with a change proposal. Import JSON to continue work later or compare a proposed design with a live connection.