Similar to OpenVPN

DSpace

DVD Flick

Device independent file format#DVI-to-PDF converters

Dvips

Eclipse (software)

Elasticsearch

EGS (program)

Element (software)

Embedded GLIBC

Enchant (software)

Enlightened Sound Daemon

Erlang (programming language)

ERP5

Mule (software)

Etherpad

Euler Mathematical Toolbox

Evince

GNOME Evolution

Exa (command-line utility)

Exaile

Expr