nicbarker/clay

2D UI layout library in C with flexbox-like model and microsecond performance

C++ library for fast, minimal GUIs in game engines and tools
ocornut/imgui
100+ free interactive React components for creative site building
ui-layouts/uilayouts
Node-based UI libraries for React and Svelte, ready to use and customize
xyflow/xyflow
Browser 3D CAD app for making and editing models in your web browser
xiangechen/chili3d
single-header C library for simple cross-platform 2D graphics and input
zserge/fenster
Visual tool for building and testing CSS flexbox layouts in the browser
prazzon/Flexbox-Labs
Svelte UI blocks for fast web projects
SikandarJODD/cnblocks
customizable framework for building rich text editors
ianstormtaylor/slate
Desktop client for AI models like GPT, Claude, and Gemini
Bin-Huang/chatbox
HTML-first UI components, framework-agnostic, built on UIkit and LitElement
franken-ui/ui