Application UI Component

• Web : React, Svelte, Vue, SolidJS
• Mobile: Flutter, React Native, Qt, Electron, SwiftUI
• Desktop: GTK, WinUI, AppKit

Windowing/rendering system

• Web: Chromium, Webkit
• Mobile: Android
• Linux: Wayland (+ wlroots), X11/X.Org

Graphics API

• Vulkan, OpenGL, Direct3D, WebGPU

Others

• 2D Rendering engines: Skia, Direct2D
• Immediate-mode GUI: Dear ImGui, egui
• Game Engine: Unity, Unreal, Godot
• Terminal: ncurses