APITrace is a tracing tool for OpenGL and other graphics APIs.
Ardour is an open-source digital audio workstation.
Beignet is an open-source OpenCL implementation for Intel graphics cores on Linux.
BlueZ serves as the Linux Bluetooth protocol stack.
The Btrfs user-space utilities (btrfs-progs) for the Btrfs file-system living within the Linux kernel.
Cairo is a vector graphics drawing API that offers multiple hardware and software-accelerated back-ends. Cairo is used by a variety of projects from X.Org to Mozilla and WebKit.
The KDE Calligra open-source office / productivity suite.
Chromium is the open-source version of Google's popular Chrome web-browser.
Cinnamon is a LinuxMint desktop project.
Clang is a C, Objective-C, and C++ compiler front-end to LLVM.
Clutter is an open-source toolkit that supports OpenGL and OpenGL ES rendering and is largely developed by Intel with a GNOME focus.
COGL is a "modern 3D graphics API" designed for use by the Clutter tool-kit but can also be used by other user-interface components.
Compiler-RT is the LLVM library providing low-level target-specific hooks for code generation and other runtime components.
Coreboot, formerly known as LinuxBIOS, provides a modern BIOS/firmware implementation for many modern processors and chipsets.
Daala is an open-source video codec being designed by Xiph.Org.
Dalvik is a virtual machine and core libraries for Google's Android operating system.
DarkPlaces is an open-source game engine powering the Xonotic first person shooter.
DBus is a FreeDesktop.org lightweight IPC implementation for Linux.
DHEWM3 is a popular engine fork of the open-source id Tech 4 / Doom 3 engine.
DragonEgg is a GCC plug-in that uses LLVM as a back-end.
The DragonFlyBSD operating system's source tree.
The core libraries to EFL, the Enlightenment Foundation Libraries.
The Elementary widget tool-kit to the Enlightenment Foundation Libraries (EFL).
The Enlightenment window manager.
GNOME's Epiphany WebKit-powered web-browser.
FFmpeg is a popular open-source multimedia framework commonly used for audio/video encode and decode functionality to a variety of codecs.
Flashrom is an open-source utility for flashing flash chips and carrying out related tasks. Flashrom supports many different motherboards and other ASICs for flashing BIOS, EFI, Coreboot, Firmware, and other ROM images.
The FreeBSD kernel.
The FreeType portable font engine.
GCC, the GNU Compiler Collection that is the Free Software Foundation open-source compiler for C, C++, Fortran, Java, ADA, and other languages.
GDB is the GNU Debugger from the GNU project.
The Genode operating system framework.
The GIMP open-source imaging and graphics manipulation program.
Git is a leading open-source distributed version control system conceived by Linus Torvalds.
Glamor provides generic 2D acceleration support via OpenGL.
GLib is a widely-used low-level cross-platform software utility library maintained by the GNOME project.
The GNU C library.
The libglvnd project by NVIDIA is an attempt to create an OpenGL venture-neutral dispatch library for Linux systems. Advertised as the new Linux OpenGL ABI, GLVND is designed to make it easier for multiple GPU drivers to co-exist on the same system.
Gnash is an open-source Adobe Flash/SWF player that is backed by the Free Software Foundation.
The gnome-settings-daemon is responsible for setting GNOME session settings.
The GNOME Shell is the user-interface for GNOME 3.x.
Green Island is a Wayland compositor for the Hawaii desktop.
The GTK+ tool-kit that's used by GNOME.
Gummiboot is a simple open-source UEFI boot manager.
Hadoop is an Apache project to provide for reliable, scalable, distributed computing that's open-source.
Haiku is an open-source operating system inspired by BeOS.
HarfBuzz is an open-source text shaping library.
HHVM, the HipHop Virtual Machine, is Facebook's virtual machine, run-time, and JIT compiler for PHP.
The Illumos open-source OpenIndiana/OpenSolaris operating system.
The iodoom3 is a fork of the open-source id Software id Tech 4 (Doom 3) game engine.
IOquake3 is a popular fork of the open-source id Software's id Tech 3 (Quake III) engine.
The KDE Runtime.
The KDE Workspace.
LDC is an LLVM-based compiler front-end for the D programming language.
The libav project is a fork of the open-source cross-platform FFmpeg multimedia framework.
libcxx is the C++ standard library implementation for LLVM.
libde265 is an open-source H.265 encoder/decoder library available under the LGPL.
Libdrm is the Direct Rendering Manager library component to Mesa DRM that contains the driver header files for communication with the driver's kernel modules.
Hybris allows Google Android Bionic-based libraries and drivers to work on glibc-based Linux systems.
LibreOffice is a popular fork of the open-source OpenOffice office suite.
The Google VP8/VP9 codec SDK.
The mainline Linux kernel.
LLDB is the high-performance next-generation code/program debugger for LLVM.
LLVM is an innovative open-source compiler infrastructure that's widely used for various purposes
The panel component to LXDE.
The session management component to the LXDE desktop.
Mesa is an open-source 3D graphics library that provides the commonly-used DRI and Gallium3D open-source Linux graphics drivers.
Mono is an ECMA CLI, C#, and .NET implementation of Microsoft's technologies.
Mutter is the compositing window manager to the GNOME Shell.
MythTV is an open-source PVR (Personal Video Recorder) / HDTV solution.
NetworkManager is an open-source network management component.
OpenMW is an open-source engine re-implementation of The Elder Scrolls III: Morrowind.
Opus is an open-source low-latency audio codec hosted by Xiph.Org.
Orbital is a shell for Wayland's Weston compositor.
OSv is a new cloud-focused, BSD-licensed modern operating system for KVM, Xen, and Amazon EC2 environments.
The Perl Programming Language.
The Phoronix Test Suite is the leading open-source multi-platform benchmarking and automated testing framework developed by Phoronix Media.
PHP is one of the most popular web server languages.
PhpMyAdmin is a tool written in PHP for MySQL server database administration.
Piglit is an OpenGL conformance test suite designed for testing Mesa and other OpenGL hardware drivers.
PiTiVi is an open-source video editor that's part of the GNOME desktop environment and uses GStreamer.
Pixman is a pixel manipulation and rendering library.
Plymouth is a modern graphical boot system for Linux machines and developed by Red Hat.
POCL is the Portable Computing Language and most notably provides an open-source OpenCL library implementation.
PostgeSQL is a leading open-source SQL database server.
PulseAudio is an open-source multi-OS network sound server commonly used by modern Linux distributions.
PyPy is an alternative implementation of Python that focuses upon speed and other abilities.
QEMU is an open-source machine emulator and hypervisor for hardware virtualization.
The Qt5 open-source tool-kit.
RBDoom3BFG is a community port of id Software's Doom 3 BFG Edition game to Linux.
Samba is an open-source SMB/CIFS protocol implementation for supporting interoperable file and print services from Windows on Linux/Unix systems.
The Simple DirectMedia Layer (SDL) library is a cross-platform library for providing easy interactions with input, audio, and graphics devices.
Spearmint is an open-source game engine that serves as a further visually advanced version of ioquake3.
The Red Hat SPICE remote-display protocol and code.
systemd is the widely-used system management daemon for the Linux kernel.
uClibc is a C library targeting embedded Linux systems.
UDisks provides disk management support.
Unvanquished's game engine is Daemon and is a combination of the ioquake3 and ETXreaL open-source game engines with many advanced modifications.
UPower provides power management and power abstraction support for DeviceKit.
VA-API is the Video Acceleration API for Linux that's largely designed by Intel Open-Source Technology Center developers.
Valgrind is an open-source instrumentation framework / dynamic analysis tool commonly used for memory profiling of applications.
VDPAU is the Video Decode and Presentation API for Unix that was developed by NVIDIA for their binary Linux driver and then expanded to other open-source drivers. The VDPAU library (libvdpau) is driver-neutral.
Virt-manager is a Red Hat developed solution that provides a desktop interface for managing libvirt-based virtual machines.
VLC is a popular cross-platform open-source multimedia program.
Watermint is a fork of the Spearmint engine that seeks to ship a realistic open-source game.
The Wayland display server protocol and display/compositor infrastructure.
WebKit is the widely-used open-source web-browser rendering engine.
WebM is a royalty-free audio-video format developed by Google.
Weston is the reference compositor to Wayland and commonly used for demonstrating new Wayland features and protocol functionality.
Wine Is Not An Emulator. Wine allows for Microsoft Windows programs to run unmodified on Windows, OS X, and Solaris/BSD operating systems.
The X.Org Server reference X11 server implementation.
XBMC is one of the leading open-source home theatre software projects.
Xen is an open-source virtualization hypervisor.
The xf86-video-ati driver is the X.Org DDX driver for open-source ATI/AMD Radeon graphics of varying generations.
The xf86-video-intel driver is the X.Org DDX driver for open-source Intel graphics with their in-house GEN / HD graphics processors.
The xf86-video-modesetting DDX provides a generic X.Org driver for hardware implementing a DRM/KMS driver.
The xf86-video-nouveau driver is the X.Org DDX driver for the open-source Nouveau driver that is reverse-engineered for NVIDIA GeForce/Quadro GPU support
The desktop panel to Xfce.
The session manager for Xfce.
The desktop manager to Xfce.
Xonotic is an open-source first person shooter that succeeded the open-source Nexuiz project.
The native ZFS file-system kernel module for the Linux kernel that's currently maintained as an out-of-tree code-base.