Similar to Psyco

AviSynth

Avogadro (software)

AxKit

Free Software Foundation anti-Windows campaigns

Ballerina (programming language)

Banner (Unix)

GNU Bazaar

Berry Linux

GNU Bison

Bitstream Vera

Blackbox

BlueGriffon

Brackets (text editor)

Brasero (software)

BSD licenses

Cacti (software)

Cairo (graphics)

Calligra Sheets

Azure Linux

Ccache

Cdparanoia

Cdrkit

Coccinella (software)

Conkeror

Cooperative Linux

Coreboot

Cowsay