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

Enlightenment Foundation Libraries

https://docs.enlightenment.org/efl/current/

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/

Simple widget toolkit using EFL

http://docs.enlightenment.org/auto/elementary/

GNU editing macros (No X flavor)

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

Media server to organize, play & stream audio/video to various devices

https://emby.media/

Detect encoding of text files

http://gitorious.org/enca

Dictionary/spellchecking framework

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

X.Org Encoding fonts

https://www.x.org/

Artistic X window manager

https://www.enlightenment.org/

ASCII to PostScript filter

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

ASCII to PostScript filter

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

The Eye Of Gnome image viewer

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

Extremely lightweight and simple web browser for GNOME 3

http://www.gnome.org/projects/epiphany/

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/

Additional loader for Evas (svg)

http://trac.enlightenment.org/e/wiki/Evas_Generic_Loaders

XEVIE extension headers

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

GNOME 3 multi-format document viewer

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

GNOME 3 multi-format document viewer without the GNOME dependancies

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

Integrated mail, calendar and address book distributed suite

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

Data backends for the Evolution integrated mail/PIM suite

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

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/

Exif, IPTC, and XMP metadata manipulation library and tools

https://www.exiv2.org/

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/

MPEG-2 and MPEG-4 AAC audio encoder

https://www.audiocoding.com/

MPEG-2 and MPEG-4 AAC audio decoder

https://github.com/knik0/faad2

Functional Constraint Library

http://www.recherche.enac.fr/log/facile/

File alteration monitor

http://oss.sgi.com/projects/fam/

Collection of GStreamer modules and libraries for videoconferencing

http://farsight.freedesktop.org/