Open Source Software Using HSQLDB

Office and Productivity

• OpenOffice 3.0
• Thaw - a Freenet GUI
• Onepoint - project management
• Kurlo - contact management
• Borg - calendar and task tracking

Mathematics and Science

• Kepler scientific modeling and workflow
• SPECIALIST biomedical and general English lexicon

Web Portals

• Liferay - web portal and social office

Business Management

• Webswell - business integration hub

Issue Tracking

• jTrac

Wiki

• XWiki

Application and code development

• tongue-tied - multilanguage resource management for Java and other platforms

• Hammurapi - automates code review and quality control

Application Servers and Frameworks

• JBoss
• JFox
• Jonas

Other Software

• Verbos - verb conjugation

Open Source Software for use with HSQLDB

Frameworks

• Spring Framework
  

Object Relational Mapping Software

• Hibernate
  
• Open JPA - JPA
• DataNucleus - JDO3 and JPA2
• jIncarnate - compiles plain SQL into Java code that uses JDBC
• jOOQ - is a type-safe Java API for SQL which supports several database engines, using advanced SQL, including stored procedures and UDTs

Database Clustering Software

• C-JDBC- for clustered HSQLDB
• HA - JDBC- for clustered HSQLDB

Database Development and Admin Utilities

• Flyway - Database Migration and change management
• Liquibase - DB schema and data change management
• JAMon - JDBC monitoring and stats
• DiffKit - compare and diff data in database tables, supports several database systems and flat files

Database Management Systems Incorporating HSQLDB

• Volt DB - next generation RDBMS for high-performance OLTP uses HSQLDB for SQL processing
• EffiProz - database engines for use with Microsoft technologies based on HSQLDB 2.0 translated into C#.
• HyperXtremeSQL - very high performance Java database engines based on HSQLDB 1.8 and 2.2.

Commercial Software Using HSQLDB

Mathematics and Science

• Mathematica - leading maths software
• Hedgehog - new Java API for numeric and geometric modeling

Business Management

• CenterView - business performance management

Issue Tracking

• AgileTrack
• Jira
• TrackStudio

Wiki

• Confluence

Software Build + Integration Management

• Team City

Project Management  / Team Collaboration

• Yoxel PCM is a desktop application that helps you succeed with projects by leveraging project-based email communication and enhancing team collaboration experience.

eCommerce

• hybris supplies Product Information Management software for the media-neutral management of product information and its use in both e-commerce and printed catalog channels.
  By default HSQLDB is bundled as backing database for our J2EE persistence layer optimally
  suited for easy distribution.
  

Mobile Application Development

• MobiForms mobile application development tool offers an
  intuitive graphical drag and drop development environment. A user can deploy and run a full blown Java application on
  Pocket PC, Windows CE and Windows Mobile running against a local mobile
  HSQLDB database.
  
  

Personal Investment Management

• The Fifth Animal allows active investors to analyze their stock trades, generate reports, keep extensive notes... "Traditionally there were 4 animals on Wall Street: bulls, bears, hogs and sheep..."
  

Extent of use of HSQLDB in open source software

• HyperSQL is used in well over 1700 open source projects. See the Antelink web site for some figures:

• HSQLDB, most reused open source project of the week

Research Using HSQLDB

• Relational Cloud - partitioned data among multiple HyperSQL databases
• AJHSQLDB - research in aspect oriented refactoring using HSQLDB source code

• Sormula - data access