Extract any website’s
design system

A DESIGN.md is a plain-text design system document that AI coding agents read to generate consistent UI. It is the design counterpart to AGENTS.md: humans and agents can both read it, edit it, and enforce it. Under the hood it has two layers. YAML front matter holds machine-readable design tokens like colors, typography, and spacing. The markdown body explains the design rationale.

A DESIGN.md usually includes eight canonical sections in order: Overview, Colors, Typography, Layout, Elevation and Depth, Shapes, Components, and Do's and Don'ts. The YAML front matter encodes the exact token values. The markdown body explains how and why to apply them. Sections can be omitted if they are not relevant, and extra domain-specific sections can be added.

Paste any public URL into Design Extractor. The system crawls the page, analyzes its visual properties such as colors, fonts, spacing, CSS variables, and component patterns, then produces a structured DESIGN.md file you can copy and use immediately.

Any AI coding tool that reads markdown files from your project directory can use DESIGN.md. That includes Claude Code, Cursor, GitHub Copilot, and other coding assistants with file access. Drop the DESIGN.md into your project root or a docs folder and reference it in your prompt.

Any publicly accessible website. Design Extractor analyzes the live page as rendered in a browser. It works with static sites, SPAs, and server-rendered pages. The site must be reachable via a standard HTTP/HTTPS URL.