Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
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A cross-platform GUI library for Rust, inspired by Elm
Cross platform GUI toolkit in Go inspired by Material Design
- golang
- gui
- cross-platform
- go
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.
Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
- kotlin
- ui
- multiplatform
- desktop
High performance UI layout library in C.
- layout
- ui
Dear PyGui: A fast and powerful Graphical User Interface Toolkit for Python with minimal dependencies
- cpp
- python
- imgui
- toolkit
Python GUIs for Humans! Create any GUI simple or complicated in a way that's intuitive. Launched in 2018. NEW for 2026 - the LGPL3 Version 6. Transforms tkinter, Qt, WxPython, and Remi into a simple, intuitive, and fun experience for both hobbyists and expert users.
- pysimplegui
- gui-framework
- python
- tkinter
A modern and customizable python UI-library based on Tkinter
- python
- ui
- ui-design
- tkinter
Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.
WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.
RmlUi - The HTML/CSS User Interface library evolved
C library for building user interfaces
- gui-framework
- c
- gui-toolkit
- cross-platform-gui
A free and open source framework for building powerful, fast, elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and web with a single Go codebase, allowing you to Code Once, Run Everywhere.
Declarative User Interfaces for Python
- python
- enaml
libRocket - The HTML/CSS User Interface library
User interface components for Starling Framework, ActionScript 3, and Adobe AIR
- user-interface
- adobe-air
- adobe-flash-player
- actionscript
Cross-platform UI framework for Rust: styled property system, data binding, XAML, control themes and a composition renderer. A port of Avalonia.
Common Lisp CFFI bindings to the IUP Portable User Interface library (pre-ALPHA)
- common-lisp
- cffi
- gui
- iup
Git super project for PySide
- python
- qt
- pyside
- qtforpython
LUIS (Love2D UI System) is a flexible graphical user interface (GUI) framework built on top of the Löve2D game framework. LUIS provides developers with the tools to create dynamic, grid-centric, layered user interfaces for games and applications.
Window User Interface Library :: libWUI offical repo
UI framework based on the Fusion/libui.cr library, with elements from watzon/cru.
- libui
- gui
- ui
- crystal
Cocoa interface code written in Lisp for use with Clozure Common Lisp (CCL)