Open Source Geospatial Foundation
MapGuide Open Source is a platform for developing web mapping applications.
Debugger and open source C/C++ compiler for MSP430 microcontrollers.
atdl4j is an open source and not-for-profit JavaTM implementation of FIXatdlSM.
Synstral Business Software Handelsbolag
Simply Orders - Advanced Order & Invoice Management Database for MS Access.
OpenCV is a library of programming functions for real time computer vision.
Open Dungeons Community
OpenDungeons is an open source, real time strategy game.
It's an open source payroll and time management software.
OpenERP is an open source business applications suite: CRM, sales, manufacturing.
dlib is open source library for developing portable applications.
The PHP community has the largest pool of rich open source applications.
Argonne National Laboratory
EPICS is a set of Open Source software tools, libraries and applications.
An open-source database system for high-performance applications in data mining.
Free, open source IDE for Ruby and Rails applications.
Open source text and code editor for designing web applications.
An open-source platform for developing and deploying RFID applications.
It's an Open Source framework that helps using jQuery with ASP.NET applications.