Ultimate++

U++
DeveloperU++ team
Initial release2004 (2004)
Stable release
2025.1.1 / 3 July 2025 (2025-07-03)
Written inC++
Operating systemUnix / Linux / FreeBSD (X11), Windows, Windows CE, MacOS
PlatformCross-platform
TypeApplication framework
LicenseBSD license
Websitewww.ultimatepp.org
Repository

U++, formally known as Ultimate++ - is a C++ RAD framework that aims to reduce the code complexity of typical desktop applications by including all necessary toolkits into a single C++ framework. Programs created with U++ work on multiple Operating Systems and Hardware Architectures with performance without needing to write platform-specific code.

It has its own Integrated Development Environment called TheIDE that is designed to handle all library features and plugins.