ITIL conform CMDB solution for documenting your entire IT landscape
Toolkit for working with and mapping geospatial data
Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc
Data quality analysis, profiling, cleansing, duplicate detection +more
A free, easy to use, generic CMDB written in PHP
A software tool to bring MySQL to the Web
Open source Extract Transform Load engine written in Java
A management system for sensitive system and security information
although fully functional, this is a pre-framework that you can extend