Please use the ER Diagrammer link.

The ER Diagrammer download link will start or launch the vendor software form.

The Entity Relationship Diagrammer shows the tables and their relationships to each other systematically, following the IDEF1X standard. ER Diagrammer can create an entity-relationship diagram from an existing database. Optionally, for a complex database, ER Diagrammer can generate diagrams for portions that you select. Usually, the result will picture the tables in a manner that clearly shows all relationships.