React Native for Web

Analytical Web Apps for Python, R, Julia, and Jupyter. No JavaScript Required.

Qt binding for Go (Golang) with support for Windows / macOS / Linux / FreeBSD / Android / iOS / Sailfish OS / Raspberry Pi / AsteroidOS / Ubuntu Touch / JavaScript / WebAssembly

Launched in 2018 Actively developed and supported. Supports tkinter, Qt, WxPython, Remi (in browser). Create custom layout GUI's simply. Python 2.7 & 3 Support. 200+ Demo programs & Cookbook for rapid start. Extensive documentation. Examples using Machine Learning(GUI, OpenCV Integration, Chatterbot), Floating Desktop Widgets, Matplotlib + Pyplot integration, add GUI to command line scripts, PDF & Image Viewer. For both beginning and advanced programmers .

Cross-Platform GUI Library - Report issues here: https://trac.wxwidgets.org/

A small C library for building user interfaces with C, XML and CSS.

Python bindings for the Chromium Embedded Framework (CEF)

wxPython's Project Phoenix. A new implementation of wxPython, better, stronger, faster than he was before.

Cross-Platform GUI Toolkit (stable)

Java OpenGL GUI library. Created for using with latest LWJGL (LWJGL 3).

Glimmer - Ruby Desktop Development GUI Library

Dash for Julia - A Julia interface to the Dash ecosystem for creating analytic web applications in Julia. No JavaScript required.

pyface: traits-capable windowing framework

Examples for https://github.com/therecipe/qt

Web Technologies based Crossplatform GUI Framework with Dark theme

Forms is a GUI framework for the Unreal Development Kit. Programmed in UnrealScript independent of Scaleforms and UIScene. Inspired by OOP and subobjects semantics of the Unreal Engine 2 GUI's framework.

A GUI framework, all wrapped in rice and seaweed for extra flavor.

Straw-Framework is a C++ GUI library.

(WIP) Java OpenGL GUI library. Created for using with latest LWJGL (LWJGL 3).

Future Home of illuxUI, C++ GUI Library/Framework

RGUI is useful, powerful Reactive Graphical User Interface framework.

🥐 Lightweight yet useful library for Bukkit/Spigot/Paper plugins.

MACE is A C++ Engine

💾 Modern c++17 framework to create console, gui and unit test applications on Microsoft Windows, Apple macOS and Linux.

An awesome GUI framework for Minecraft Forge. Unfinished, on hiatus.

GUI framework for .NET WinForms applications.

dominter.py is a simple GUI (Graphical User Interface) package for small web application.

Easy to Use GUI Toolkit & Framework for MATLAB

GUI for displaying Binary Search Trees written in C++ using the Qt Library.

.Net Core GUI Framework for developing cross platform desktop application. It is my hobby project. Please do not use before it's first release.