Place launch icons and background directly on your desktop

http://idesk.sourceforge.net

Library to handle internationalized domain names

https://www.nic.ad.jp/ja/idn/idnkit/download/

Internet Low Bit Rate codec (RFC3951)

http://www.ilbcfreeware.org/

GNUstep Image Viewer

https://www.nice.ch/~phip/softcorner.html

Imake and other utilities from X.Org

https://www.x.org/

The next generation graphics library for Enlightenment

http://docs.enlightenment.org/api/imlib2/html/

Publishing and presentation tool

https://www.ntlug.org/~ccox/impress/

Dynamic DNS update client

https://troglobit.com/projects/inadyn/

Monospaced TrueType font with Cyrillic glyphs

https://github.com/DeLaGuardo/Inconsolata-LGC

Monospaced truetype font

https://fonts.google.com/specimen/Inconsolata

Handle filesystem-events the way cron handles time ones

https://inotify.aiken.cz/?section=incron&page=about

Utility to regenerate the GNU info page index

https://github.com/bapt/indexinfo

Full featured open source SVG editor

https://inkscape.org

GNUstep screensaver

http://www.nongnu.org/gap/innerspace/index.html

Gigabit FreeBSD Base Drivers for Intel(R) Ethernet

https://downloadcenter.intel.com

10 gigabit FreeBSD Base Driver for Intel(R) Network Connections

https://downloadcenter.intel.com

Hardware video decoding/encoding/filtering on Intel GPUs

http://mediasdk.intel.com/

IntelliJ IDEA Community Edition

http://www.jetbrains.com/idea/

Replacement for IntelliJ's fsnotifier

https://github.com/idea4bsd/fsnotifier/

FreeBSD-compatible replacement for IntelliJ's bundled Pty4J

https://github.com/traff/pty4j

Free X11 fonts for all characters that Emacs can handle

Tools to internationalize various kinds of data files

http://www.gnome.org/

Slender monospace sans-serif and slab-serif typeface for programming

https://typeof.net/Iosevka/

Performance Test of Sequential File I/O

https://www.iozone.org/

Performance Test of Sequential File I/O (older version)

https://www.iozone.org/

Tools for IP based Geo-blocking and Geo-routing

https://cyclaero.github.io/ipdb/

Tool to measure maximum TCP and UDP bandwidth

https://sourceforge.net/projects/iperf2/

Official DShield client for ipfilter firewall logs

http://www.dshield.org/linux_clients.php#freebsd

DShield client for ipfw logs

http://www.dynamical-systems.org/ipfw/

Software package for large-scale nonlinear optimization

https://projects.coin-or.org/Ipopt

KAME racoon IKE daemon, ipsec-tools version

http://ipsec-tools.sourceforge.net/

High performance realtime 3D engine

http://irrlicht.sourceforge.net/

Modular IRC client with many features

https://irssi.org/

Collection of useful scripts for the irssi IRC-client

https://scripts.irssi.org/

Collection of additional irssi themes

https://irssi-import.github.io/themes/

Font by John Stracke based on the Isabella Breviary

https://www.thibault.org/fonts/isabella/

Kernel module enabling iSCSI/IBFT boot

https://github.com/jnielsendotnet/isboot

ISC Cron, former Vixie Cron

ftp://ftp.isc.org/isc/cron/

The ISC Dynamic Host Configuration Protocol client

https://www.isc.org/dhcp/

The ISC Dynamic Host Configuration Protocol relay

https://www.isc.org/products/DHCP/

ISC Dynamic Host Configuration Protocol server

https://www.isc.org/dhcp/

Integer Set Library

https://libisl.sourceforge.io/

Lists of the country, language, and currency iso names

https://salsa.debian.org/iso-codes-team/iso-codes

Character entity sets from ISO 8879:1986 (SGML)

Make XML documents translatable through po files

http://itstool.org/

Intel Wireless 8260 bluetooth adaptor firmwares used by iwmbtfw(8)

https://packages.debian.org/firmware-iwlwifi

Online presence and instant messaging server

https://jabberd2.org/

Low latency audio server

https://jackaudio.org/

Object-oriented SGML/XML parser toolkit and DSSSL engine

http://www.jclark.com/jade/

JavaBeansTM Activation Framework

http://java.sun.com/products/javabeans/jaf/