ioquake3 (or ioq3 for short) builds upon id Software's Quake 3 source code release. It cleans it up, fixes bugs, and adds features. Its goal is to be the Quake 3 distribution upon which people base their games and projects. Its design goals include optimizing the engine for playing Quake 3: Arena, Team Arena, and all popular mods. This distribution of the engine has been ported to many new platforms. While it doesn't have PunkBuster (and never will), it does provide more security for servers and clients by way of various bugfixes which aren't in id's client.
irrKlang is a high level 2D and 3D cross platform sound engine and audio library that plays WAV, MP3, OGG, MOD, XM, IT, S3M, and other file formats. It can be used by C++ and all .NET languages (C#, Visual Basic.NET, etc.). It has all of the features common to low-level audio libraries as well as lots of useful features like a sophisticated streaming engine, extendable audio reading, single and multi-threading modes, 3D audio emulation for low-end hardware, a plugin system, multiple rolloff models, sound effects, and more. All of these can be accessed via an extremely simple API using an object oriented design.
J2ObjC is a tool from Google that translates Java code to Objective-C for the iOS platform. It enables Java code to be part of an iOS build, as no editing of the generated files is necessary. The goal is to write an app's non-UI code (such as data access or application logic) in Java, which can then be shared by Web apps using GWT, Android apps, and iOS apps. J2ObjC supports most Java language and runtime features required by client-side application developers, including exceptions, inner and anonymous classes, generic types, threads, and reflection. JUnit test translation and execution are also supported.
The j661 project provides a generic CDS (or ARINC 661 Server) in order to facilitate the understanding of the ARINC 661 standard, prototype ARINC 661 concepts and architectures, and facilitate the reuse of ARINC 661 specifications and artefacts between projects. The CDS architecture is designed to allow defining the Server behavior to be easily modified or extended. This is achieved by a modular plug-in architecture, allowing customization at runtime without changing anything in the Server core itself.
jBoom is a program for remote storage and management of browser bookmarks and mail addresses. It allows accessing a central set of bookmarks and addresse from any system connected to the Internet. It is browser, mailer, and system independent, not bound to a dedicated server, and doesn't require a special Web service. The bookmarks are kept in an XML file on the remote system. A local copy can be stored on the client. The program may be started from the client or over the Internet from an HTTP server. Entries can be activated from the main window or the system tray.
jEncrypt is a commandline file encryption archiver. Files are encrypted with the AES-CTR mode, which was recommended by the National Institute of Standards and Technology in 2001 (NIST SP 800-38A). AES-CTR mode only provides confidentiality. It requires a message authentication code such as CBC-MAC to ensure an encrypted message is not accidentally modified or maliciously tampered with, which jEncrypt currently does not provide.