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Valentina Studio vs SQuirreL SQL: catalog facts
Valentina Studio	SQuirreL SQL
Freemium Valentina Studio FREE costs nothing; Valentina Studio PRO is a paid upgrade.	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux
Supports SQL and NoSQL databases in one app Visual diagram editor that generates schema objects	Works with any JDBC-compliant database Plugin system for extra features
Some features reserved for the paid PRO edition Not open source	Requires a Java runtime Interface feels dated next to newer clients
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: LGPL-2.1
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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