Library to handle internationalized domain names

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

FUSE-based filesystem for mounting iOS devices over USB

https://www.libimobiledevice.org

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

Simple .INI file parser written in C

https://github.com/benhoyt/inih

InterNetNews -- the Internet meets Netnews

https://www.eyrie.org/~eagle/software/inn/

GNUstep screensaver

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

Gigabit FreeBSD Base Drivers for Intel(R) Ethernet

https://downloadcenter.intel.com

Intel(R) Ethernet Port Configuration Tool

https://www.intel.com/content/www/us/en/download/19438/ethernet-port-configuration-tool-freebsd.html

40G and 100G FreeBSD Driver for Virtual Function for Intel NIC

https://downloadcenter.intel.com

Intel® Network Adapter Driver for E810 Series Devices

https://downloadcenter.intel.com

NIC Driver for Intel(R) 82575/6 and 82580-Based cards

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/

Intel CPU undervolting tool

https://github.com/kitsunyan/intel-undervolt

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/

Cleaned-up and enhanced version of Quake 3

https://ioquake3.org/

Ioquake3 dedicated server

https://ioquake3.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/

Improved tool to measure TCP and UDP bandwidth

https://software.es.net/iperf/

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/

CLI to manage IPMI systems

https://codeberg.org/IPMITool/ipmitool

Software package for large-scale nonlinear optimization

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

Enhanced Interactive Python shell

https://ipython.org/ https://ipython.readthedocs.io/en/stable/ https://github.com/ipython/ipython

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/