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Entity Relationship Diagram (ERD)

A powerful database design and visualization tool, helping you gain deep insights into complex system structures through interactive graphs.

💡 Intelligent Reverse Engineering

Data Explorer automatically scans "information_schema" to detect actual Foreign Key constraints, helping you accurately reproduce existing database architecture without manual drawing.

Auto-Layout (Dagre Engine)

Uses the Dagre algorithm to automatically arrange hundreds of tables optimally. Minimizes overlapping lines and optimizes data flow according to tree or hierarchical architectures.

Real-time Feedback

Every change on the diagram (like dragging foreign key connectors) is instantly synced with the SQL Script. You can preview ALTER TABLE commands before applying them directly to the database.

Graph Architecture (React Flow)

The ERD Engine is built on React Flow, providing smooth vector (SVG) rendering even when working with massive schemas (thousands of tables). The system uses "Zoom-to-Content" and "Viewport Virtualization" mechanisms to ensure maximum browser performance.
Global Search & Focus

Quickly search for any table or column in the diagram. The system will automatically pan and zoom to that location.

Professional Exporter

Export diagrams to high-DPI PNG (for presentations) or SVG (for documentation) with complete data type metadata.

Control Guide

Left ClickSelect table / view Index & Constraints details
Space + DragQuickly pan the canvas
Ctrl + ScrollZoom in/out focused on cursor
Double ClickReset zoom and center diagram

Pro-tips for Database Architects

Optimal Schema Design

  • 1

    Use colors to group tables by logical modules (e.g., Red for Finance, Blue for User).

  • 2

    Leverage ERD to detect missing indexes on Foreign Key columns — a common cause of slow joins.

  • 3

    Export SQL DDL directly from the design interface to ensure Version Control (Git) is always up to date.

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