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SQuirreL SQL Client

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Database administration tool

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SQuirreL SQL Client
Developers	Colin Bell, Gerd Wagner, Rob Manning and others

Stable release	5.0.0^[1] / 2025-09-18[±]
Preview release	20231120_2225^[2] / November 20, 2023; 2 years ago (2023-11-20)^[2]

Written in	Java
Operating system	Cross-platform
Platform	Java
Type	Database administration tool
License	LGPL
Website	www.squirrelsql.org
Repository	sourceforge.net/p/squirrel-sql/git/ci/master/tree/

TheSQuirreL SQL Client is a database administration tool. It usesJDBC to allow users to explore and interact with databases via a JDBC driver. It provides an editor that offerscode completion andsyntax highlighting for standardSQL. 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 inJava withSwing UI components, it should run on any platform that has aJVM.^[3]

SQuirreL SQL Client is free as open source software that is distributed under theGNU Lesser General Public License.

Feature summary

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Object Tree allows for browsing database objects such as catalogs, schemas, tables, triggers, views, sequences,procedures,UDTs, etc.
The SQL Editor, based on RSyntaxTextArea by fifesoft.com, provides syntax highlighting. It can open, create, save and execute files containing SQL statements.
SQuirreL supports simultaneous sessions with multiple databases. This allows comparing data and sharing SQL statements between databases.^[4]
SQuirreL runs on any platform that has a JVM.
A plugin architecture facilitates database vendor-specific extensions (information or actions not available using standard JDBC)
Translations for the user interface exist in: (Bulgarian,Brazilian Portuguese,Chinese,Czech,French,German,Italian,Japanese,Polish,Spanish,Russian).
Graph capabilities can generate charts showing table relationships.^[5]
Bookmarks - user-defined code templates. SQuirreL comes with predefined example bookmarks for the most common SQL and DDL statements.^[5]

History

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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 aSourceForge project since 2001, and was still under active development in 2024.^[6]