Launchy is a free and open-source muti-platform application launcher.

Jitsi (formerly SIP Communicator) is a free and open source multiplatform voice (VoIP), videoconferencing and instant messaging application.

Terminator is a terminal emulator released under General Public License and is available for GNU/Linux Platform.

Keypirinha is a fast launcher for keyboard ninjas on Windows.

UMLet is an open-source Java-based UML tool designed for teaching the Unified Modeling Language and for quickly creating UML diagrams.

Enso Launcher is designed to give you instant access to your applications and windows.

TextMate is a graphical text editor for OS X 10.8+.

GNOME Do (often referred to as Do) is a free application launcher for Linux

Find and Run Robot (FARR) is a program for keyboard maniacs -- it uses an adaptive "live search" function to rapidly find programs and documents.

TinyMCE (Tiny Moxiecode Content Editor) is a platform-independent, browser-based WYSIWYG editor control, written in JavaScript and released as open-source sof…

UnMHT adds MHT file reading/writing support to Firefox and SeaMonkey.

Tint Browser is an open-source browser for Android 4 and above.