Similar to TestLink

MEncoder

Mendeley

Metasploit

Mined (text editor)

MLDonkey

Mnemosyne (software)

Mojo (programming language)

Mpv (media player)

Mumble (software)

Nashorn (JavaScript engine)

NetIQ eDirectory

Netscape Navigator 9

NetSurf

Nl (Unix)

Nmap

Od (Unix)

OpenCL

OpenLDAP

OpenOffice.org

OpenOffice Draw

Orfeo toolbox

PDF.js

Photopea

PPSSPP