SQuirreL SQL Client
The SQuirreL SQL Client is a database administration tool. It uses JDBC to allow users to explore and interact with databases via a JDBC driver. It provides an editor that offers code completion and syntax highlighting for standard SQL. It also provides a plugin architecture that allows plugin writers to modify much of the application's behavior to provide database-specific functionality or features that are database-independent. As this desktop application is written entirely in Java with Swing UI components, it should run on any platform that has a JVM. SQuirreL SQL Client is free as  open source software that is distributed under the GNU Lesser General Public License. History. The SQuirreL SQL project was developed by a team of Java developers around the world and led by Colin Bell. It has been hosted as a SourceForge project since 2001, and was still under active development in 2020.