TheIDE U++ Cross Platform App Development Framework IDE

TheIDE is a free and open source integrated development environment for the U++ cross-platform app development framework for Windows, macOS, GNU/Linux & FreeBSD. It serves as a dedicated hub for C++ programming enthusiasts and handles general-purpose C/C++ projects. It comes with user-friendly build system, code completion, and robust debugger support. Its library suite covers GUI, SQL, Network, and more, providing a comprehensive toolkit for developers.


The modular concepts introduced by TheIDE contribute to the efficiency of C++ programming within the U++ framework. With features like BLITZ-build technology for accelerated rebuilds, visual designers for U++ libraries, Topic++ for code documentation, and Assist++ – a robust C++ code analyzer offering code completion, navigation, and transformation, TheIDE elevates the development experience. It is compatible with GCC, Clang, MinGW, and Visual C++ and many more.

Download TheIDE

How to install TheIDE on Ubuntu

To install TheIDE on Ubuntu Linux system, open the terminal application and run below TheIDE flatpak install command. It will install the latest TheIDE on your system.

flatpak install flathub org.ultimatepp.TheIDE

After successfully installing TheIDE, you can open it using the command below:

flatpak run org.ultimatepp.TheIDE

It will prompt you to install additional packages. Type ‘Y’ and hit Enter to install all for the first time.

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Note: If you don’t already have flatpak and flathub installed,then install them on your system first using the commands provided below. After the installation, restart your system and again start the TheIDE installation.

sudo apt install flatpak
flatpak remote-add --if-not-exists flathub

And you can also uninstall it using below commands.

flatpak uninstall org.ultimatepp.TheIDE


sudo flatpak uninstall org.ultimatepp.TheIDE
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