The sidebar's Data | Diagram switcher opens the database's Entity-Relationship Diagram: one card per table, its columns with key and type badges, and an edge for every foreign-key relationship. Click a node to jump back to that table's Data tab in the explorer; the left sidebar stays available for direct navigation. Diagrams are generated from the open database's schema and never leave your machine.

The diagram is rendered by the open-source sqlite-erd package. You can also deep-link to /visualize — with no database open it shows a short explanation instead of an empty canvas.

Views and virtual tables are listed in the sidebar but do not render as diagram cards — the diagram engine parses CREATE TABLE andCREATE INDEX statements only.

Drag the canvas to pan, scroll or pinch to zoom, and drag node cards to arrange them — the layout is fully interactive. Ctrl/⌘ + scroll zooms in place, and the on-canvas controls (bottom-left) fit the view, zoom in or out, and lock interactive mode.