Similar to Gzip

Calibre (software)

Caudium (web server)

ClamAV

Claws Mail

Completely Fair Scheduler

Concurrent Versions System

Conky (software)

CPython

Ruby MRI

Cwm (window manager)

Cygwin

Darling (software)

Das U-Boot

Dasher (software)

DeaDBeeF

Dia (software)

Dpkg

Dropbear (software)

Dwm

Elvis (text editor)

GNOME Evolution

Fast Library for Number Theory

Ffdshow

FFmpeg

Filesystem in Userspace

Flatpak

FontForge

Fossil (software)