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Ipfirewall
Ipfirewall
IPodLinux
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Iproute2
Iproute2
Iptables
Iptables
IRAF
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Irrlicht Engine
Irrlicht Engine
Irssi
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Ispell
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Iw (Linux)

Jabber

JACK Audio Connection Kit
JACK Audio Connection Kit
Jahshaka

Jaspersoft BI

Jcode.pl

JEdit
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Jekyll
Jekyll (software)
Jetty
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JFreeChart
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Jigdo
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JMax

JNode

JOnAS

Jq (プログラミング言語)
JRuby
JRuby
JSDoc
JSDoc
JuK
JuK▲2 trends
Jython
Jython