SQuirreL SQL Client

Spec sheet

Purpose

SQuirreL is a graphical Java client for viewing JDBC database structure, browsing table data, and issuing SQL commands.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Security

Version 5.1.0 highlights enhanced security for encrypting Alias passwords.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Support

The project directs users to its mailing lists for usage questions and developer discussion; posting requires subscription.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

License

The project says it has been released under the GNU Lesser General Public License since version 1.1beta2.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

AI integration

The latest snapshot announced on the site offers MCP server functionality for AI tools to access SQuirreL sessions.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Cross database queries

The Multisource plugin supports queries across databases, cross database updates and synchronization, data virtualization, and SQL dialect and function translation.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Data import

The optional Data Import plugin imports Excel or CSV data into a database.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Database connections

SQuirreL uses JDBC drivers to connect to databases, and the FAQ says it should work in theory with any DBMS that has a JDBC 2.0 driver.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Database connectivity

It can work with databases that have a compatible JDBC driver, which users may need to obtain from the database vendor.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Driver availability

The project says most database drivers are not included because they are proprietary and vendors generally require users to download them directly.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Editable results

Query result tabs support editing rows returned from a query on a single table.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Extensibility

Java plugins extend the application, and plugins from its repository are included in the installer.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Extensible

Its functionality can be extended with Java plugins, and plugins in the project repository are included in the installer.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

External data disclosure

The optional SQL Validator plugin sends SQL to a Mimer SQL web service for validation and stores validated SQL anonymously for use by the ISO SQL Standards committee.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Graphing

The Graph plugin can create and print charts of database tables and their foreign key relations, and supports query building with SQL generation.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Java requirement

The 5.1.0 release requires at least Java 17.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Operating systems and Java

The project provides installers for Windows, Linux, and MacOS, and says SQuirreL 5.1.0 requires at least Java 17.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Password security

The 5.1.0 feature highlights include enhanced security for encrypting Alias passwords.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Plugin examples

Available plugins include data import from Excel or CSV, table graphing, schema refactoring, and cross-database queries.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Result editing

Query result tabs support editing rows returned from a query on a single table.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

SQL editor

The editor offers code completion for database objects and SQL terms, and can generate JOIN syntax from foreign keys.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Supported systems

Installers are offered for Windows, Linux and other systems, and a separate installer is offered for MacOS.Read 9 Oct 2026 · squirrel-sql.sourceforge.io

Plans and prices

Every SQuirreL SQL Client plan and price →

Where Specifiction places it

• SQL Query Tools#12 of 318.1
• Database Client Software#22 of 538.0