73+ production DESIGN.md files from real brands. Drop one into your project and let your coding agent build a matching UI.
Extracting a design system takes time and depends on how well a site renders for crawlers. If you already know the aesthetic you want (Vercel's minimal dark, Stripe's clean financial, Figma's playful purple), a pre-made file gets you there in seconds. Each entry in this collection includes the DESIGN.md plus HTML preview catalogs showing colors, typography, and components. You see exactly what you're getting before adding it to your project.
Steps
Browse the collection of 73 brands, organized by category: AI platforms, developer tools, fintech, e-commerce, media, automotive. Look for a brand whose visual language matches what you want to build toward. You're borrowing spatial rhythm and typographic proportions, not copying identity.
Click the brand entry, open the raw file, copy everything. Save it in your project folder as DESIGN.md. That exact name is what Lovable, Bolt, and Claude Code look for.
Before using the file, replace what's theirs: swap their color palette for yours, replace premium or brand-specific font names with Google Fonts equivalents of similar character. Keep the spacing scale and component proportions. That rhythm is the part worth borrowing.
Paste the adapted DESIGN.md as the first block in your Lovable or Bolt prompt, or pass it to Claude Code as a reference file. The AI reads the system before making any layout decision. Spacing, hierarchy, and component patterns are set before a single element is placed.
How do you know it worked?
If something looks off