Similar to Pidgin
Onion Browser
Open vSwitch
Open vSwitch
Openbox
Openbox
OpenBSD
OpenBSDOpenLDAP
OpenLDAP
OpenVPN
OpenVPN
OpenVZ
OpenVZ
Opkg
PARI/GP
PARI/GP
Parrot
Parrot virtual machine
Pcap
Pcap
PCSX
PHP (プログラミング言語)
PHPPluma
Pluma (text editor)
Polkit
PolkitPortAudio
PortAudio
Privoxy
Privoxy
ProFTPD
ProFTPD
PSPP
PSPP
PulseAudio
PulseAudioPure Data
Pure Data
Qmail
Qmail
Raku
Raku (programming language)
Rdesktop
Rdesktop
ReactOS
ReactOSRecordMyDesktop
RecordMyDesktopRedshift
Redshift (software)
KornShell
KornShell