The Information System Development Kit gives the developer a platform-independent method of creating Information Systems with data forms, SQL database access, database-browsing support, report generator and many other useful features. ISDK is now in a development stage and it is available only for the Linux operating system. The form module now works on text terminals using the ncurses library (not functional right now), and on the X-Window system using the GTK+ toolkit.
Jacquard is a Web-database integration toolkit, written as a Java Servlet package. It is designed to make it extremely easy to build two- and three-tier client-server applications which will be completely portable to any hardware platform and operating system which supports a Java 1.2-compliant JVM or a JDBC 2.0-compliant database management system, or any Web server or Web Application Server which supports the JSDK 2.0 API.
Jellybean is a Perl Object server that allows people to write custom applications following a simple interface and framework. It's conceptually similar to Zope, but has peer communication potential. It has its own tiny Web server which serves static pages, CGIs, or transforms URIs into method calls on objects, and allows users to create their own behavior.
JIGS (Java Interface for GnuStep) allows Java programmers to use the GNUstep libraries from Java, but it is more than a set of bindings for GNUstep from Java: it takes advantage of the fact that Objective-C and Java are very similar languages to make it possible to use Objective-C classes from Java using exactly the same API (and vice versa). Moreover, JIGS can generate automatically wrappers for your own Objective-C GNUstep libraries.
JX is a full-featured C++ application framework and GUI widget library for use with the X Window System. It provides support for all facets of application development, including distributed applications, and aims to combine the best of MacOS and NeXTSTEP. It is built directly on top of Xlib and has been carefully optimized for performance.
KernelDriver automates your Windows 2000/NT, Windows Me/98/95 and Linux device driver development by providing you with powerful tools for hardware debugging, driver code generation, and driver debugging. KernelDriver supports PCI / USB / ISA and EISA drivers. KernelDriver for Windows and Linux includes the powerful Driver Wizard. Using the Driver Wizard you can graphically debug your hardware by "peeking" and "poking" at it without writing a single line of code. After your hardware is diagnosed, use the Driver Wizard to generate a complete kernel mode device driver which will drive your hardware.
The LinuxClassLibrary is a growing set of classes which everyone needs every day, that runs on all types of *nix and also on Win32. Currently it is a library that works in the background (non GUI). Current features are character handling, file descriptors (sockets, file, etc.), a database system (like the Perl DBI), an event system, template collection classes (set, heap, hash, etc.), IPC, protocols, plug-ins, and images.