Cross-Platform C++ GUI Library

Python bindings for the Chromium Embedded Framework (CEF)

Free open-source modern C++17 / C++20 framework to create console, GUI (forms like WinForms) and unit test applications and libraries on Microsoft Windows, Apple macOS and Linux.

Masl OS

◀️ Super Simple GUI Library for C++ ▶️

MaslOS but 2

Xbox GameBar Overlay GUI

Object Oriented Universal GUI Framework

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

DEPRECATED! ~~C++ HTML/CSS UI. Supports subset of HTML/CSS. Based on chromium/cobalt.foo without JavaScript overhead. Uses SKIA 2D graphics library. Can be used to build UI for cross-platform app, game or website. Can support browser as HTML5 web framework or WebGL UI renderer.~~

MACE is A C++ Engine

An API for wxWidgets PC app UIs that are user-engagement focused

Simplistic SDL2 GUI framework in early developement.

Xbox GameBar Rendering For Unity Applications

Simple XML-based OpenGL UI system

A cross-platform wxWidgets Framework based GUI Builder supporting C++ | Python | PHP | Lua | XRC

Awnd is a C++ framework for creating win32 apps easily.

Straw-Framework is a C++ GUI library.

C++ QT 5 "todo" application

A GUI framework based on SDL 2 that can help developers create desktop client applications, video games and etc in record time.