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Sqlectron vs SQuirreL SQL: catalog facts
Sqlectron	SQuirreL SQL
Free Free and open source with no paid edition.	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux
Lightweight and simple interface Works with several database engines from one app	Works with any JDBC-compliant database Plugin system for extra features
Fewer administration features than full database IDEs No dedicated project website beyond the repository	Requires a Java runtime Interface feels dated next to newer clients
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: LGPL-2.1
No account 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.