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ChartDB vs StackRender: catalog facts
ChartDB	StackRender
Freemium Self-hosted version is free; the cloud service is free to start with paid team features.	Free Open source under AGPL-3.0; a cloud version adds an AI assistant.
Web, Self-hosted	Web, Self-hosted
Diagram from a single query without database access Exports DDL scripts	Generates migrations and rollback scripts from diagram changes Imports existing SQL into an editable ER diagram
Collaboration features are aimed at the cloud version	Still in public beta AI features are limited to the cloud version
Web application, Self-hosted	Web application, Self-hosted
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.