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pgModeler vs ChartDB: catalog facts
pgModeler	ChartDB
Freemium Source code is free; pgModeler Plus with pre-built binaries is paid, with 50% off for…	Freemium Self-hosted version is free; the cloud service is free to start with paid team features.
Windows, macOS, Linux, Command line	Web, Self-hosted
Deep PostgreSQL-specific modeling Reverse engineering and schema diff and sync	Diagram from a single query without database access Exports DDL scripts
PostgreSQL only Pre-built binaries require the paid Plus edition; otherwise you build from source	Collaboration features are aimed at the cloud version
Downloadable app	Web application, Self-hosted
Open 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.