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SQuirreL SQL vs Sqlectron: catalog facts
SQuirreL SQL	Sqlectron
Free Free and open source.	Free Free and open source with no paid edition.
Windows, macOS, Linux	Windows, macOS, Linux
Works with any JDBC-compliant database Plugin system for extra features	Lightweight and simple interface Works with several database engines from one app
Requires a Java runtime Interface feels dated next to newer clients	Fewer administration features than full database IDEs No dedicated project website beyond the repository
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License: MIT
No account needed	No account needed
Works offline	Not stated if it 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.