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/

Eclipse IDE 2020-06

https://www.eclipse.org/

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/

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

EGL External Platform interface

https://github.com/NVIDIA/eglexternalplatform

Lightweight library for vector and matrix math

http://eigen.tuxfamily.org/

Lightweight library for vector and matrix math

http://eigen.tuxfamily.org/

VoIP and video conferencing application

https://www.ekiga.org/

Full-text search engine for Java

https://www.elastic.co/

Full-text search engine for Java

https://www.elastic.co/

Full-text search engine for Java

https://www.elastic.co/

Functional, meta-programming aware language built on top of Erlang VM

https://elixir-lang.org/

Elvish = Expressive Programming Language + Versatile Interactive Shell

https://elv.sh/

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/

Expect-like tool for pure shell

http://empty.sourceforge.net/

Enhanced Motif WM fork with multi-monitor and utf-8 support

http://fastestcode.org/emwm.html

Collection of helper tools for emwm

http://fastestcode.org/emwm.html

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/

High-performance, zero maintenance encrypted DNS proxy

https://github.com/jedisct1/encrypted-dns-server

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/

Runs arbitrary commands when files change

http://entrproject.org/

Shell helper that automatically sets and unsets environment variables

https://github.com/wojas/envy

The Eye Of Gnome image viewer

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

Plug-ins for the Eye of GNOME image viewer application

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/

IDNA implementation in pure Erlang

https://github.com/benoitc/erlang-idna

Manual pages for Erlang/OTP

https://www.erlang.org/

Functional programming language from Ericsson

https://www.erlang.org/

Functional programming language from Ericsson

https://www.erlang.org/

Compatibility library for unicode_util from Erlang R20

https://github.com/benoitc/unicode_util_compat

Extensible shell, derived from plan9's rc

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

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

Input event device header files

VTE based, super lightweight terminal emulator

http://www.calno.com/evilvte/

GNOME 3 multi-format document viewer

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