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md files analysis by popular brand design systems. Drop one into your project and let coding agents generate a matching UI.

2 AA-AAA, 138 design systems, any-framework code, and 50 objective gates that fail the build instead of faking success.

基于 REA 深度拆解并高保真还原 Claude 官方桌面端 UI。还原 30 个独立 React 组件与 8 项硬核交互物理算法，附带 3000+ 行逆向分析手册。

Arc Library: free, open source React components with calm motion. Copy the code or install with the shadcn CLI.

Open-source design editor. pen design files, includes built-in AI, and ships as a programmable toolkit with a headless Vue SDK for building custom editors.

Extract any website's complete design system with one command.

Skip the blank-page design brief, grab a design system inspiration that matches the feel you want, and let Claude Design do the scaffolding.

js 16 + React 19 + Tailwind CSS 4 boilerplate. md before writing any component, section, or page — it is the whole spec for how this repo is built.

React design system for agentic interfaces. Every free BoardUI component as source, with a working AI chat app on your own model key as the homepage.

🎨Provide 3000+ Design Tokens, easy to build your design system. 🧑🏻‍💻 Design to Code in one click

A CSS-first, native, zero-build layout and styling framework for web designers.

The Angular team builds and maintains both common UI components and tools to help you build your own custom components. The team maintains several npm packages.

A visual CSS framework and design-token builder for the web, WordPress, and Figma.