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A little curiosity. A world of open source.
THE FIRST COLLECTIONA collection of 120 plain-text DESIGN.md brand design specifications reverse engineered from live production sites, letting AI coding agents generate on-brand UI. Each brand includes real colors, typography, components and guardrails plus a self-contained preview.html.
Vuetify is an MIT-licensed Vue UI component framework offering handcrafted, responsive components with theming, SASS customization, Vite tree-shaking and 42+ language support.
UI UX Pro Max is an open-source AI skill for Claude Code, Cursor, and other AI coding assistants. It provides design intelligence including 79 searchable UI styles, 192 industry-specific reasoning rules, 192 color palettes, 74 font pairings, and stack-specific UI/UX guidelines across 22 tech frameworks.
Pencil is a free, open-source tool for creating diagrams and GUI prototypes, with a rewritten V3 version based on Electron for better performance and scalability.
Oat is an ultra-lightweight, zero-dependency semantic HTML/CSS/JS UI library (~10KB min+gz). It needs no framework or build step, styles semantic tags contextually without classes, and uses minimal JS WebComponents for dynamic parts.
