Schema Visualizer for SQL Developer: Interactive Diagramming Tool

Build and Export Schema Diagrams in SQL Developer with Schema Visualizer

Visualizes database schemas as interactive diagrams (tables, columns, PK/FK relationships).
Lets you arrange and edit diagram layout for clarity.
Supports export to PNG, SVG, PDF and common diagram formats for documentation or sharing.
Filters and scopes diagrams by schema, tables, or relationships to focus on relevant parts.

Automatic layout: generates readable ER diagrams from schema metadata.
Manual editing: move nodes, collapse/expand tables, hide columns.
Relationship highlighting: trace foreign key paths and dependency chains.
Search & focus: find tables/columns and center them in the diagram.
Export & share: high-resolution image/PDF exports and copy SVG for embedding.
Versioning/annotations: add notes or version labels to diagrams (if supported by the Visualizer plugin).

Connect SQL Developer to your database and select the target schema.
Open Schema Visualizer and choose tables or let it auto-select based on relationships.
Apply automatic layout, then manually adjust positions and collapse large tables.
Use filters to hide system objects and show only relevant constraints/indexes.
Export diagram in required format and include in documentation or slide decks.

Start small: visualize a subset of tables when exploring unfamiliar schemas.
Use color/labels: color-code by module or data domain for quicker comprehension.
Export vector formats: prefer SVG/PDF for crisp scaling in docs.
Annotate: add brief notes to explain non-obvious relationships before sharing.

Very large schemas may produce cluttered diagrams—use filtering and grouping.
Some export formats may lose interactivity (SVG retains more fidelity than PNG).
Plugin-specific features may vary by SQL Developer version.

If you want, I can write a step-by-step guide for your SQL Developer version to produce and export diagrams.