Ultimate++

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GUI Framework Toolkit

title: "Ultimate++" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["widget-toolkits", "application-programming-interfaces", "free-computer-libraries", "x-based-libraries", "c++-libraries", "cross-platform-software", "free-integrated-development-environments", "linux-integrated-development-environments", "software-using-the-bsd-license", "articles-with-example-c++-code", "programming-tools-for-windows"] description: "GUI Framework Toolkit" topic_path: "technology/operating-systems" source: "https://en.wikipedia.org/wiki/Ultimate++" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary GUI Framework Toolkit ::

::data[format=table title="Infobox software"]

Field	Value
name	U++
screenshot	Upp Screenshot.png
caption	TheIDE from 2010
developer	U++ team
released
latest release version	2025.1.1
latest release date
programming language	C++
operating system	Unix / Linux / FreeBSD (X11), Windows, Windows CE, MacOS
platform	Cross-platform
genre	Application framework
license	BSD license
website
::

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.

Features

Some key features includes

An IDE with a GUI designer
Extensive use of RAII and auto pointers-like mechanisms to avoid manual memory management and limit the use of pointers in the code
Can emulate native widgets look and feel. On X11 systems, Ultimate++ supports GTK+ widgets look and feel.
The standard distribution comes with U++ sources included.
Uses as a template system instead of STL.
Supports databases, with libraries to connect with various database systems.
Designed for high-performance application use cases with a low memory footprint and efficient use of system resources.
Retains backward compatibility, allowing developers to upgrade to new versions of the framework without issues.
Provides support for Unicode to make applications in multiple languages.
Document editor, Debugger, auto completion and Icon Designer for making tool icons with less effort.
Possible to work with Android NDK and SDK
Web development and other features

Supports

Operating system

Windows
macOS
GNU / Linux
Unix-Like OS

Compiler or port

Database

Microsoft SQL
MySQL
PostgreSQL
Sqlite

Software built on U++

Example applications using U++ are:

BEMRosetta - hydrodynamic coefficients viewer and converter
Openwind - wind farm design software
UppCAD - multipurpose CAD system
WordNet Browser - browser for WordNet

References

"U++ team".
"Release history".
[http://www.codeproject.com/KB/library/IntroUpp.aspx Getting started with Ultimate++] CodeProject article
[http://www.ultimatepp.org/www$uppweb$overview$en-us.html U++ Overview]
[http://www.ultimatepp.org/www$uppweb$chss$en-us.html Chameleon examples]
"Topic++ :: U++".
"Assist++ :: U++".
"Icon Designer :: U++".
"Android builder :: U++".
"U++ Technologies :: U++".
"U++ forum: Welcome to the forum".
"Building OpenWind".
"Ultimate++ Forums - UppCAD".
"UppCAD".

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::