ColorPic Free screen colour picker

Hugin Free Panorama Photo Stitching Software

Inkscape Free SVG based vector drawing package

Xara LX Open sourced drawing package

Synfig Free 2d vector animation software

Blender 3D Free professional 3D application software with full modelling, animation and rendering

Terragen Fantastic 3d scenery creator

POV-Ray A totally free raytracing program available on multiple platforms

Art of Illusion Free Java based 3D modelling and rendering software

k-3D Free 3D modeling, animation and rendering system

Aqsis Free high quality, photorealistic, Renderman™ based 3D renderer

Now 3D Free 3D modelling and raytracing software for Windows

Bishop 3D Free modelling and animation program for use with POV-RAY

MakeHuman Free 3d character modelling software

The GIMP GIMP - GNU Image Manipulation Program

Irfanview Multi purpose image file viewer for Windows

Paint.net Free digital photo editing software

QCad Free computer aided design (CAD) software for creating building pland and mechanical parts

BRL-CAD Free computer aided design (CAD) software used by the US military for over 20 years

Audacity Free sound and audio editor and recorder

Ardour Ardour is free GNU digital audio workstation

MediaCoder Free audio and video conversion software

RAW Therapee Free RAW Processing Software

UFRaw Free RAW processing utility

RAWStudio Free RAW processing software