Open source project offering unit and integration testing framework.

Build tool designed specifically for Fortran projects. It natively handles Fortran dependencies, takes care of locating files in subdirectories, and includes advanced features like multi-threading for better performance on multi-core systems, and mult...

Monitors and analyses all incoming and outgoing HTTP traffic between the browser and the web servers.

Open source ajax-based jabber web client entirely written in Javascript. Includes screenshots and an online demonstration.

irrlamb is a 3D game that probably involves a lot of physics and frustrating gameplay. (C++) [Linux, Windows] [GPL2]

An open source library for building J2ME applications. It includes an UI, a logging framework, functions for getting location data from a Bluetooth GPS device, and utility classes.

Google code project offering utilities and add-ons for JavaFX Script.

Standalone JavaScript development environment; goal: turn JavaScript into a general-purpose scripting language. Has set of native modules that contain many general-purpose classes and functions. Open source, GPL.

MIDI and audio sequencer, synthesizers and FX, and a soundfont sampler and wave editor. Site includes project info, downloads, and a link to the main developer. (Delphi) [Windows]

Offers a console implementation of the version control system for windows.