Fragmentarium

Fragmentarium is an open source, cross-platform IDE for exploring pixel based graphics on the GPU. It is inspired by Adobe's Pixel Bender, but uses GLSL, and is created specifically with fractals and generative systems in mind.

Triangle (It is not a freeware, until proved otherwise)

for generated Delaunay triangulations

Pure Data

Pure Data is a visual programming language. It is possible to create and manipulate video, graphics, images in realtime with extensive possibilities for interactivity with audio & external sensors.

Jashaka

Jashaka est un logicel d'édition vidéo et effets spéciaux.

traGtor

for converting any type of video, picture, audio.

Avidemux

Avidemux is a simple software for editing videos.

Blender

Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation.

Natron

This is a cross-platform open-source compositing software.It offers robust and efficient tools for compositors to get their job done fast with high quality results.

GLMixer

Logiciel de mélange d'images animés : vidéos, shaders, liveCam ...etc.

Ibniz

IBNIZ is a virtual machine designed for extremely compact low-level audiovisual programs.

TexTuring

Krita

Krita is a open source software for digital painting. It is made by artists that want to see affordable art tools for everyone. Concept art - Texture and matte painters - illustrations and comics.

OpenSCAD

The short description describes the project briefly, it should not be longer than one or two sentences.

MPlayer

Mplayer is the swiss army knife of video players