free software
software distributed under terms that allow users to freely run, study, change and distribute it and modified versions
Apache Excalibur
project to produce a set of software components for the Java programming language
Apache Batik
Java library for creating, editing, and rendering SVG
Avogadro
Molecular builder/editor for Windows, Linux, and Mac OS X
Commons Daemon
software
Boa
small-footprint web server
Boost
C++ libraries
Open Sound System
Audio interface for Unix-like operating systems
Moonlight
open-source Microsoft Silverlight implementation
Jakarta Project
umbrella project under the auspices of the Apache Software Foundation
Quicksilver
utility software for macOS
GNU Gatekeeper
H.323 gatekeeper implementation
CMU Common Lisp
free Common Lisp implementation
Cassini
free software
hping
open-source packet generator and analyzer
Arora
web browser
Physics Analysis Workstation
data analysis tool used at CERN
Clementine
cross-platform music player software
Conduit
synchronization application for GNOME
Quake-Catcher Network
BOINC-based volunteer computing project detecting earthquakes
Enchant
spell checking wrapper library and command-line program
Archive Manager
archive manager of the GNOME desktop environment (former File Roller)
Intelligent Input Bus
framework for multilingual input
Enlightened Sound Daemon
Sound server
Ripple
Payment protocol
GNU Midnight Commander
a free cross-platform orthodox file manager and a clone of Norton Commander
Glade
GTK+ rapid application development tool
Apache Etch
network protocol
Mantis Bug Tracker
free and open source, web-based bug tracking system
Rodent
free software
Fossil
distributed version control system, bug tracking system and wiki server
Free Pascal Runtime Library
Runtime library for Free Pascal
Mutt
text-based email client for Unix-like systems
Hydrogen
open source drum machine software
Fully Automatic Installation
rapid installer for Linux distributions
GNU assembler
GNU assembler, part of binutils
GNU Scientific Library
library for numerical analysis in C and C++
Pan
newsreader
Tremor
audio decoder
Universal Network Objects
component model used in OpenOffice.org and derivatives
GNOME Commander
file manager similar to GNU Midnight Commander
Gobby
text editor
Apache Chemistry
implementations of the Content Management Interoperability Services
TRIM
free software for monitoring flora and fauna
Samba
free software re-implementation of the SMB networking protocol
T-Coffee
software tools for computing, evaluating and manipulating multiple alignments of DNA, RNA, protein sequences and structures
Electric
circuit-design system
Nebula Device
game engine