Similar to PuTTY

Emacs

Embedded GLIBC

Euler Mathematical Toolbox

F-Spot

Fast Library for Number Theory

FFmpeg

Filesystem in Userspace

Flask (web framework)

Flatpak

Fontconfig

FontForge

Foresight Linux

Fossil (software)

FreeMat

FreeSBIE

GConf

GD Graphics Library

Geany

GKrellM

GNOME

GNU Core Utilities

GNU Emacs

GNU Go

GNU Radio

GNU Readline