Nifti2Dicom
QSpeakers
QuteMol
RasMol (classic version)
RasMol (GTK version)
R Commander
Regina
Relational
SAGA GIS
SAOImage DS9
ScolaSync
Scratch
SeaView
ShelXle
ESO/Starlink SkyCat
Snek Development Environment
GNU Solfege
Spatialite GUI
Sumo
Aven Cave Surveying Tool
Terraintool surface mesh generator
Therion
Therion loch viewer
TilEm
TOPCAT
