fityk
Fox
Fraqtive
FreeCAD
QSpeakers
Atomes
Persalys
fv FITS Editor
G3Data Graph Analyzer
gap4
gap5
Garlic Protein Visualization
Gazebo
GChem3D
GChemCalc
GChemPaint
GChemTable
GCrystal
GCX Astro-Image Processor
GNU Data Language
GDPC Molecular Dynamic Simulator
Geg
Periodic Table
GENtle
Geomview
