Open Source User Interface (UI) Software

Code::Blocks is a free, open-source, cross-platform C, C++ and Fortran IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable. Finally, an IDE with all the features you need, having a consistent look, feel and operation across platforms. Built around a plugin framework, Code::Blocks can be extended with plugins. Any kind of functionality can be added by installing/coding a plugin. For instance, compiling and debugging functionality is already provided by plugins! We hope you enjoy using Code::Blocks! The Code::Blocks Team

When testing using a database with rollback after each test, failing tests are very hard to resolve. Data Storm is a simple DB viewer directly launchable from within your test code to enable you to inspect the current state of the database.

Edyuk is a free, open source, fast and lightweight development environment which supports C++ and Qt 4 out of the box and can be extended through plugins. It works under all platforms supported by Qt 4 (Linux, Mac, Windows, BSD, ...).

An IDE project in D for everybody. Basic features will be Project management/building/compiling,syntax highlighting,code completion,local bugtracking,Debugger,Smart/Fast code navigation,on type syntax checking,cvs/subVersion,Refractoring,plugin support.

YARI is a comprehensive tool suite to debug (layouts), spy, spider, inspect and navigate SWT and Eclipse based application GUIs (Workbench or RCP) at runtime.

This project is a java web application developer toolbox. It is among other, a simple and powerful framework which does not require dealing with XML files. It also provides a lot of other features, such as a DB abstraction layer, a nice javadoc doclet, a

Java SWT and AWT port of Scintilla, a free source code editing component. Scintilla runs on Windows and Linux with GTK+. It is a rich text editing control that supports syntax styling, error indicators, code completion, call tips, etc.

Testing tool for Semantic Bridges. Supports the evaluation of rule-based (SWRL) ontology mappings to provide trust in a distributed multi-actor environment with heterogeneous independent information models materialized in OWL ontologies. See QualiPSo.org

rngcc is "really nice GNU C compiler" it's the GUI for the standard GCC on Unix systems rngcc is fully written in c

Brainfuck Studio is an IDE for the Brainfuck programming language consisting of a text editor, a compiler as well as a debugger.

Code Bubbles is a front end to Eclipse designed to simplify programming by making it easy for the programmer to define and use working sets. It provides compact function-based views of the code (all backed by the underlying files) that are displayed in bubbles and that are easily moved around and manipulated on the screen. The bubbles are fully editable. A large bubble area lets the programmer set up different working sets simultaneously and easily move between them.

DragnDrop is a simple cross-platform utility to assist in debugging and monitoring drag-n-drop and clipboard interactions. It is of use to both developers and end users.

Project that allows you to edit various files on a server through your web browser. Has syntax highlighting, and eventually will beable to debug php files through it's interface You can see a sample here: http://www.phpwebbug.org/TestClient/

Swing Spy is java based Swing/AWT spy agent that prints the widget under the cursor (like Spy++ for Windows/MFC and SWT Spy for Java-SWT). Download from the homepage: http://www.nenoff.com/swingspy/