Fonts extension headers

http://www.x.org/

Quickly ping N hosts w/o flooding the network

http://www.fping.org/

Free and portable TrueType font rendering engine

http://www.freetype.org/

Minimalistic plugin API for video effects

https://frei0r.dyne.org/

Command line FTP tools for listing and mirroring

https://www.ohse.de/uwe/ftpcopy.html

Synchronizes a local and a remote FTP directory trees

http://www.clazzes.org/ftpsync

Utility to display the HTTP headers returned by web-servers

https://github.com/bingos/furl

Graphical Boot Manager

Eclipse Java Compiler used to build GCC Java

Create dependencies in makefiles using 'gcc -M'

Some useful routines of C programming (previous stable version)

http://www.gtk.org/

Programming reference for devel/glib20

https://www.gtk.org/

Text search engine

http://webglimpse.org/

GLX extension headers

http://www.freedesktop.org/wiki/Software/xlibs

A generic matrix template library

http://home.gna.org/getfem/

Free library for arbitrary precision arithmetic

https://gmplib.org/

Sound files for use with GNOME 2

Programming reference for x11/gnome-desktop

http://www.gnome.org/

Common startup and shutdown subroutines used by GNOME scripts

Utility port that creates the GNOME directory tree

Fast, multi-threaded malloc() and nifty performance analysis tools

https://github.com/gperftools/gperftools

Script to analyze web server and generate Google Sitemap files

http://code.google.com/p/sitemap-generators/

Visual effects library

http://sourceforge.net/projects/goom

Generates perfect hash functions for sets of keywords

https://www.gnu.org/software/gperf/

Standard fonts for Ghostscript

http://www.cs.wisc.edu/~ghost/doc/gnu/index.htm

The GNU Scientific Library - mathematical libs

http://www.gnu.org/software/gsl

Audio converter and library for converting u-law to gsm encoding

http://kbs.cs.tu-berlin.de/~jutta/toast.html

Compression utility designed to be a replacement for compress

http://www.gnu.org/software/gzip/

gzip recovery toolkit

https://www.urbanophile.com/arenn/hacking/gzrt/

Anti-spam / denial of service counter-measure tool

http://www.hashcash.org/

High-color icon theme shell from the FreeDesktop project

http://www.freedesktop.org/Standards/icon-theme-spec

All W3C published SGML DTDs for HTML

Converts HTML documents into plain text

http://www.mbayer.de/html2text/

Time synchronization over http utility

http://www.vervest.org/htp/

ICE authority file utility for X

Internet Low Bit Rate codec (RFC3951)

http://www.ilbcfreeware.org/

ILM Base libraries a.k.a. Half, IlmThread, Imath, and Iex

http://www.openexr.com/

Imake and other utilities from X.Org

https://www.x.org/

Input extension headers

Performance Test of Sequential File I/O

https://www.iozone.org/

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

https://www.iozone.org/

Tool to measure maximum TCP and UDP bandwidth

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

KAME racoon IKE daemon, ipsec-tools version

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

Character entity sets from ISO 8879:1986 (SGML)

An interactive spelling checker for multiple languages

http://fmg-www.cs.ucla.edu/geoff/ispell.html

An interactive spelling checker for multiple languages

http://fmg-www.cs.ucla.edu/geoff/ispell.html

Implementation of the codec specified in the JPEG-2000 standard

https://www.ece.uvic.ca/~frodo/jasper/

Updated Java timezone definitions

Wrapper script for various Java Virtual Machines

Decoder implementation of the JBIG2 image compression format

https://github.com/ArtifexSoftware/jbig2dec