Dropbox Plugin for Windows
http://sourceforge.net/projects/dropboxcopyplug/


4chan Downloader
http://sourceforge.net/projects/fourchan-dl/
A tool to download images from 4chan threads. Automatic rescanning for new images is supported as well as simultaneous watching multiple threads. Since it is written in Qt/C++ it is available for Windows, Linux and Mac.

KShutdown
http://sourceforge.net/projects/kshutdown/
An Advanced Shut Down Utility for KDE/Linux/Windows. See "Home Page" for details.
 

Black Chocobo
http://sourceforge.net/projects/blackchocobo/
Black Chocobo is a FF7 save game editor written in Qt. Available for Windows, Linux + Mac Os. A Full Featured Save Editor, Black Chocobo contains All The features you would expect and more.

dvbcut  
http://sourceforge.net/projects/dvbcut/
dvbcut is a Qt application that enables you to select frame-precise parts of an mpeg transport stream (as received from Digial Video Broadcasting) and save them as independent mpeg files.


Qsynth
http://sourceforge.net/projects/qsynth/
Qsynth is a fluidsynth GUI front-end application, written in C++ around the Qt4 toolkit, using Qt Designer. Eventually it may evolve into a softsynth management application allowing the user to control and manage a variety of command line softsynths.


Ultimate Calc
Multitask scientific calculator. Supports plugins and scripts (in C++ and QtScript respectively) to provide different working modes and custom solving functions.


Conan for Qt
http://sourceforge.net/projects/conanforqt/
Conan - Connection analyzer for Qt is a C++ library that provides visual run-time introspection of QObject hierarchies, QObject inheritance, signal/slot connections, and signal emissions. Currently supports Qt 4.6.0 - Qt 4.7.2



SMPlayer

 

SMPlayer is a complete front-end for MPlayer, from basic features like playing videos, DVDs, VCDs to more advanced features like support for MPlayer filters, edl lists, and more.