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DbSchema vs ChartDB: catalog facts
DbSchema	ChartDB
Freemium Free Community Edition, with paid editions and a 15-day Architect trial.	Freemium Self-hosted version is free; the cloud service is free to start with paid team features.
Windows, macOS, Linux	Web, Self-hosted
Supports more than 100 SQL and NoSQL databases Generates ER diagrams and HTML documentation	Diagram from a single query without database access Exports DDL scripts
Advanced features require a paid edition Not open source	Collaboration features are aimed at the cloud version
Downloadable app	Web application, Self-hosted
Closed source	Open source
License not stated	License: AGPL-3.0
No account needed	Not stated if an account is needed
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 September 24, 2026

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