ChartDB

ChartDB is an open source database diagram editor that lets you visualize and design a DB with a single query. It is for database users and designers who want to work with a visual diagram of a database. The editor brings visualization and design into the same database-focused task, with the query serving as the input for creating the view. This makes ChartDB suited to planning or examining a DB when a diagram is more useful than working from the query alone. Its scope is narrow: ChartDB edits database diagrams and centers on visualizing and designing a DB. That focus is an honest limitation for people who need a broader type of editor or work outside database diagrams.