Emulator of a PC with DOS

http://dosbox.sourceforge.net/

Simple, powerful configuration-file parser

https://github.com/williamh/dotconf

Secure, fast and powerful IMAP and POP3 server

http://www.dovecot.org/

DRI2 prototype headers

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

DRI3 prototype headers

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

Blog editor for GNOME

http://drivel.sourceforge.net/

The Droid typeface family

https://www.droidfonts.com/

Database driven web content management system (CMS)

https://www.drupal.org/

Database driven web content management system (CMS)

https://www.drupal.org/

DSSSL stylesheets for the DocBook DTD by Norman Walsh

http://sourceforge.net/projects/docbook/

English to Thai dictionary for GNUstep

http://www.eskimo.com/~pburns/Dictionaries/

DVD burning software

http://fy.chalmers.se/~appro/linux/DVD+RW/

Backup content from DVD to hard disk

http://dvdbackup.sourceforge.net/

UUID library from e2fsprogs package

http://e2fsprogs.sourceforge.net/

Small RSA key management package based on openssl

https://github.com/OpenVPN/easy-rsa

GNUstep graphical diff

Accessing and converting various ebook file formats

https://sourceforge.net/projects/ebook-tools/

Startup scripts for FreeBSD/EC2 environment

http://www.daemonology.net/freebsd-on-ec2/

Scientific calcultor for GNUstep

http://www.eskimo.com/~pburns/EdenMath/

Dynamic resource editor for X Toolkit Applications

Fax send/receive program

Speech server for Festival Lite used by yasr and Emacspeak

http://eflite.sourceforge.net/

D-Bus bindings for GObject

http://cgit.freedesktop.org/~david/eggdbus

Lightweight library for vector and matrix math

http://eigen.tuxfamily.org/

Lightweight library for vector and matrix math

http://eigen.tuxfamily.org/

A full-text search engine for Java

http://www.elasticsearch.org/

Full-text search engine for Java

http://www.elastic.co/

Detect encoding of text files

http://gitorious.org/enca

Dictionary/spellchecking framework

http://www.abisource.com/projects/enchant/

Dictionary/spellchecking framework

https://abiword.github.io/enchant/

X.Org Encoding fonts

https://www.x.org/

ASCII to PostScript filter

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

ASCII to PostScript filter

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

Free UNIX software/file packaging program

https://www.msweet.org/epm/

Functional programming language from Ericsson

https://www.erlang.org/

Extensible shell, derived from plan9's rc

http://wryun.github.io/es-shell/

The "easy shell", a small shell with Lisp-like syntax

Sound library for enlightenment package

http://www.tux.org/~ricdude/EsounD.html

Software speech synthesizer

http://espeak.sourceforge.net/

XEVIE extension headers

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

GNOME 3 multi-format document viewer without the GNOME dependancies

https://wiki.gnome.org/Apps/Evince

Port of Adobe XMP SDK to work on UNIX

http://libopenraw.freedesktop.org/wiki/Exempi

Command line utility to read and manipulate EXIF data

http://sourceforge.net/projects/libexif/

XML 1.0 parser written in C

https://github.com/libexpat/libexpat

Application to track your expense under GNUstep

http://www.eskimo.com/~pburns/Expense/

Partition-selectable boot loader for IBM-PC/AT compatibles

http://extipl.sourceforge.jp/

Tool for extracting and creating optimised Xbox ISO images

http://sourceforge.net/projects/extract-xiso/

Update your host name on any dynamic DNS service

http://www.ez-ipupdate.com/

Framework to easily create, manipulate, and run BSD jails

http://erdgeist.org/arts/software/ezjail/

Fortran-to-C converter and its run-time libraries

http://www.netlib.org/