A universal instant messaging (IM) program
See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
A full featured cross-platform image library
Developer's Image Library (DevIL) is a cross-platform image library utilizing a simple syntax to load, save, convert, manipulate, filter and display a variety of images with ease.
Self Service Business Intelligence, Analytics & Performance Management
Jedox is the fastest Open-Source BI solution for Performance Management including Planning, Analysis, Reporting and ETL. The Open Core consist of an in-memory OLAP Server, ETL Server and OLAP client libraries.
Burmol is an optimization program designed to help you remove or stop programs that may be causing your computer to slow in order to speed up your computer and improve your system.
The MUD Experiment is a try to create a old fashioned text-mode environment. However using modern languages and with easy to use builder tools.
Person registration and management system
Toes Online is a person registration and management system which can be used by organisations to registrate members. It is a powerful tool with many features, including e-mailing, grouping and financial tools, with much focus on security and easy usage.