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pgModeler vs StackRender: catalog facts
pgModelerStackRender
Freemium

Source code is free; pgModeler Plus with pre-built binaries is paid, with 50% off for…

Free

Open source under AGPL-3.0; a cloud version adds an AI assistant.

Windows, macOS, Linux, Command line Web, Self-hosted
  • Deep PostgreSQL-specific modeling
  • Reverse engineering and schema diff and sync
  • Generates migrations and rollback scripts from diagram changes
  • Imports existing SQL into an editable ER diagram
  • PostgreSQL only
  • Pre-built binaries require the paid Plus edition; otherwise you build from source
  • Still in public beta
  • AI features are limited to 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

Checked September 24, 2026

Checked October 2, 2026

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