HandBrake is an open-source, multithreaded video transcoder: it converts digital media from one format to another, compressing the files in the process.
Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat networks all at once.
Transmission has the features you expect in a BitTorrent client: encryption, a web-based interface, peer exchange, UPnP and NAT-PMP port forwarding, web seed support, watch...
Chromium is the open-source browser project from which Google Chrome takes its source.
SpiderOak provides an easy, secure and consolidated online backup, storage, access, sharing & sync tool for Windows, Mac OS X, and Linux (Ubuntu, Debian & Fedora).
Geany is a small and lightweight Integrated Development Environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other packages.
Dia is a GTK+ based diagram creation program for Linux, Unix, Mac OS X and Windows released under the GPL license.
MPlayer is a movie player which runs on many systems (see the documentation).
Midori is a lightweight, fast, and free web browser. It aligns well with the Xfce philosophy of making the most out of available resources. It is also the default browser of the beautiful elementary os.
Audacious is an advanced audio player.
TiddlyWiki is a highly customizable notewiki for capturing, organising and sharing complex information.
aria2 is a multi-protocol & multi-source, cross platform download utility. The supported protocols are HTTP(S), FTP, BitTorrent (DHT, PEX, MSE/PE), and Metalink.
LyX is a document processor. It combines the power and flexibility of TeX/LaTeX, an advanced typesetting system, with the ease of use of a graphical interface.
DeaDBeeF is a lightweight graphical music player created for easy playback of music and management of playlists.
uGet is a lightweight and full-featured Download Manager for Linux and Windows.
Synaptic is a graphical package management program for apt. It provides the same features as the apt-get command line utility with a GUI front-end based on Gtk+.
SciTE is a SCIntilla based Text Editor. Originally built to demonstrate Scintilla, it has grown to be a generally useful editor with facilities for building and running programs.
A extensible Music player with Podcast support, web radio, playlists and many more. As it is written in Python, writing new plug-ins is really easy.
ImageMagick is a software suite to create, edit, and compose bitmap images.
Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging.
GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories.
As of 9th of June, 2016 Firefox replaces Iceweasel in Debian Wheezy and Jessie security repositories. Firefox is now in Debian again with the official name and branding. https://lwn.net/Articles/676799/
Thunar is a new modern file manager for the Xfce Desktop Environment. Thunar has been designed from the ground up to be fast and easy-to-use.