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dbdiagram.io vs Navicat Data Modeler: catalog facts
dbdiagram.io	Navicat Data Modeler
Free Described on its site as a free tool.	Paid Commercial software with a free trial and perpetual licenses available.
Web	Windows, macOS, Linux
Diagrams generated from plain text Nothing to install	Conceptual, logical and physical models in one workspace Reverse engineering from live databases
Requires learning its diagram language Runs only in the browser	Paid license after the trial Design tool only, not a full query client
Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	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.