ChartDB
Open-source ER diagram editor that visualizes any database from one query, with AI diagram generation and live sync
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chartdb.ioAbout ChartDB
ChartDB is a database schema visualization and data modeling tool that produces an editable entity-relationship diagram from your existing database without ever needing direct database access from ChartDB itself. You run a single provided query against your database, paste the result, and get a full diagram in roughly fifteen seconds — which is the key adoption detail, because it means the tool can be used against production schemas without opening a network path or handing over credentials. From there you can edit the diagram, export clean DDL scripts in your preferred SQL dialect, keep the diagram automatically in sync with a live database, and track schema changes over time through diffs and version history. An AI agent layer generates fully editable, optimized ER diagrams from a plain-language prompt, so a new schema can be sketched conversationally and then refined visually. Collaboration is real-time: teammates can be invited to view and edit the same diagram simultaneously, and diagrams can be exported as customizable, embeddable documentation for any schema. The project is open source with over 19,000 GitHub stars and can be self-hosted for teams that need full control over data and setup, or used as a hosted cloud service when ease of access matters more.
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