Similar to GNU_Binutils

Botan (programming library)

Brackets (text editor)

Budgie (desktop environment)

C-Store

Cacti (software)

Caddy (web server)

CakePHP

Calibre (software)

Cdb (software)

Cdparanoia

Cdrkit

CERN httpd

Cervisia

Cgroups

Checkstyle

Progress Chef

CherryPy

Chrony

CKEditor

ClamAV

Claws Mail

Clonezilla

Cloud Foundry