ChartDB

ChartDB is a database diagram and data modeling tool that lets you generate, visualize, and refine schemas from a single query. It is designed to streamline how engineers, analysts, and database designers understand and evolve relational structures across new and existing systems. By turning SQL into clear, interactive ER diagrams, ChartDB helps teams move quickly from concept to implementation while maintaining accuracy and consistency.

The tool supports automatic ER diagram generation from SQL queries or existing schemas, allowing users to explore tables, relationships, and constraints in a visual format. You can edit models directly in the interface, then export accurate DDL scripts to apply changes to your databases. ChartDB supports collaboration features so multiple team members can review, comment on, and iterate on a shared schema model. It also enables versioning of designs, making it easier to track changes, compare iterations, and maintain a reliable source of truth for your data model.