An object relational-mapping (ORM) library for Java
Online bibliographic manager for research groups. Zotero-compatible.
Java Application Framework
World's first open source data quality & data preparation project
Concise spatial query and representation system (c-squares)
FastVersion is a Qgis plugin for data versioning in a Postgis database
ECM / DMS, Projectmanagement, TimeRecording, ... ERP
Relational storage for tagged documents
meBiblio is a bibliography tool
A database engine entirely in JavaScript (AJAX)
Backup/Restore of MySQL databases