JACK Audio Connection Kit Qt GUI Interface
A multimedia framework based on Qt and FFmpeg
Multiplatform GUI of MP3Gain which adjusts volume of MP3 files
A fluidsynth Qt GUI Interface
3D fractal rendering software
Qt based cross-platform screenshot tool with annotations
ScanTailor Advanced is the version that merges STF and STE
View and edit DICOM tags (Windows & Mac & Linux)
An old-school polyphonic sampler
Catalog and Search files from permanent or removable drives
MIDI libraries for Qt/C++
An old-school polyphonic synthesizer
Easy-to-use print report library and designer
Play music online. With friends. For free.
An old-school drum-kit sampler
Free professional video converter Windows|Mac|Linux