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datannur vs SchemaSpy: catalog facts
datannur	SchemaSpy
Free Free and open source under the MIT licence.	Free Free and open source.
Web, Self-hosted	Windows, macOS, Linux, Command line
Runs from static files with no server or database Catalogs many tabular, statistical and geospatial formats	Generates ER diagrams automatically Static HTML output is easy to share
Small project with a young community Building a catalog from real data uses the separate Python builder	Requires Java and the right JDBC driver Command-line configuration only
Self-hosted	Downloadable app
Open source	Open source
License: MIT	License: LGPL-3.0
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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