DrawDB
Free, simple, and intuitive online database diagram editor
DrawDB is an open source database diagramming tool for designing schemas visually and generating SQL from them. You create tables, columns, indexes, and foreign keys via drag-and-drop, and the app keeps relationships clear with clean, orthogonal connectors. It exports DDL for popular SQL dialects so you can move quickly from design to migration scripts. Projects can be saved, shared, and exported as images for documentation, making it useful for handoffs and reviews. The editor supports...