Open Source Geospatial Foundation
MapGuide Open Source is a platform for developing web mapping applications.
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.
Debugger and open source C/C++ compiler for MSP430 microcontrollers.
Open Dungeons Community
OpenDungeons is an open source, real time strategy game.
A free, open-source alternative to MS Office Excel.
Process Hacker is an open-source alternative to the popular Task Manager.
Cinnamon Software Inc.
Double Agent is an Open Source alternative to Microsoft Agent.
Open Cascade SA
Industrial Open Source alternative to proprietary 3D modeling kernels.
Sheetster is an open source, Java alternative to Google Spreadsheets and Office.
An open-source alternative to expensive and complex PDF editors.
A free open source alternative to Cuevana's website.
RepSnapper is an alternative host software the RepRap open source 3D printer.
Open source team chat Slack alternative with cloud support.
The Imprudence Project
An open source metaverse viewer project based on the Second Life Viewer source.