Optnik is a CLR library to help with option parsing and command execution. It is very similar to Mono.Options but has support for sub-commands, each with its own private set of options. Optnik is written in C# and runs on Mono and MS .NET (and probably on other CLR implementations too).
CL-Readline is an UFFI-based Common Lisp interface to the GNU Readline library. In addition to basic Readline functionality it features customizable completions, completions based on a Common Lisp package, multi-line expression reader, and support for non-echoing input. This software has been superseded by Linedit.
The purpose of the Control Framework for PHP (CFP) is to design and implement a completely OO based approach to Web UI design and form handling in PHP. The main use for CFP is for building the UI layer of your PHP Web application. UI behavior can be encapsulated into UI elements called controls.
KaiView is a GUI toolkit/framework for writing applications using the TOM programming language. Based on a vector-oriented drawing layer using libart and freetype2, it provides a widget layer with subject/view separation, forms loaded from XML files, live updates to the GUI, Unicode support, abstract manipulator classes, antialiased everything, and a lot more.
TinyIDE is an IDE for C++ projects that is intended for use with SCons. It uses QScintilla as the editor component, supports workspaces with multiple projects, handles Qt's moc/uic handling, generates SCons scripts, supports multiple profiles (for example, for debug and release builds), and more.
PageLayout is a layout lanager for Java Swing/AWT that encapsulates, in a single library, the functionality of many other layout managers. It allows you to lay out components in appropriately aligned rows, columns, and grids. The elements of rows, columns, and grids may themselves be rows, columns, and grids of components. As a result, relatively complex layouts can be managed with code that is compact and conceptually quite straightforward to understand and, therefore, maintain.