designlang is the open-source design extractor that turns any URL into a complete design system in seconds. A free, MIT-licensed alternative to design-extractor.com — same DESIGN.md output, no signup, scriptable CLI, plus W3C DTCG tokens (primitive · semantic · composite), Tailwind config, CSS variables, Figma variables, shadcn/ui theme, React / Vue / Svelte themes, iOS SwiftUI, Android Jetpack Compose, Flutter, WordPress block themes, and a print-ready brand-book PDF. Ships a stdio MCP serv