ChartDB

ChartDB is a web app for turning an existing SQL database into an ER diagram you can explore and share. It connects to a database, introspects tables/columns/keys, and renders an entity-relationship view to help you understand and document data models.

Key Features

• Schema introspection to discover tables, columns, indexes, and relationships
• Interactive ERD visualization for navigating database structure
• Supports multiple relational databases via connection configuration
• Diagram organization features for clearer, shareable schema documentation
• Designed for quick onboarding and understanding of legacy databases

Use Cases

• Document a production database schema for engineering and analytics teams
• Speed up onboarding by providing a visual map of tables and relationships
• Review and communicate schema changes during refactors or migrations n ChartDB is a practical tool for teams that need a fast, visual understanding of relational schemas. By generating diagrams directly from the source database, it reduces manual documentation effort and keeps schema knowledge easier to maintain.