IUP Portable User Interface
IUP is a multi-platform toolkit for building graphical user interfaces.
Best IUP Portable User Interface Alternatives & Competitors in 2025
The best IUP Portable User Interface alternatives based on verified products, community votes, reviews and other factors.
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Open-Source Alternatives.
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/gtk-alternativesGTK+ is a multi-platform toolkit for creating graphical user interfaces.
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/wxwidgets-alternativeswxWidgets: Cross-Platform GUI Library
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/qt-alternativesPowerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.
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/fltk-alternativesFast Light Toolkit - Fast Light Toolkit (FLTK)
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/gtkmm-alternativesgtkmm is the official C++ interface for the popular GUI library GTK+.
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/dear-imgui-alternativesDear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
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/avalonia-alternativesA multi-platform .NET UI framework
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/photon-micro-gui-alternativesOpen-source, resolution independent GUI library in C++
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/fox-toolkit-alternativesfox-toolkit.org
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/uno-platform-alternativesBuild Mobile, Desktop and WebAssembly apps with C# and XAML.
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/slint-alternativesGUI toolkit for Rust, C++, and JavaScript to efficiently develop fluid graphical user interfaces for embedded devices and desktop applications
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/electron-alternativesBuild cross platform desktop apps with web technologies
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/flutter-alternativesBuild beautiful native apps in record time 🚀
IUP Portable User Interface discussion
