Similar to I3_(ウィンドウマネージャ)

Free Pascal

FreeBASIC

FreeCAD

FreeMat

FreeS/WAN

Fsck

FuelPHP

Galaxy (computational biology)

Gallium3D

GD Graphics Library

GDAL

Geany

GeoServer

Gephi

Gettext

Gfarm file system

GNU Fortran

Ghostscript

GIMP

GiNaC

Glasgow Haskell Compiler

GlassFish