Photo/Video/GIF enlargement using machine learning
ksnip the cross-platform screenshot and annotation tool
3D Without Boundaries
GUI to work with abc notation
Powerful desktop publishing software
Hewlett-Packard's Linux imaging and printing software
A free video editor to cut, filter, and encode projects
FlightGear Flight Simulator: free open-source multiplatform flight sim
Swiss army knife of image processing
Panorama photo stitcher
GPS log file viewer and analyzer
a parametric 3D CAD modeler
2D & 3D TeX-Aware Vector Graphics Language
JACK Audio Connection Kit Qt GUI Interface
Non-linear video editor targeted for home video editing.
Free media player with support for Youtube
An Audio/MIDI multi-track sequencer
3D Engine c++
Multiplatform GUI of MP3Gain which adjusts volume of MP3 files
Audio converter and CD ripper for various formats
MuldeR's OpenSource Projects