58 companies · zero AI calls · 100% free

Design systems from
the world's best

Start from a design system built by top companies.

Customize colors, radius, and dark mode.

Export DESIGN.md + shadcn/ui CSS.

Open BuilderGitHub

Three steps to your design system

01

Pick a reference

Choose from 58 real company design systems -- Stripe, Vercel, Notion, Linear, and more.

02

Make it yours

Walk through A/B choices for buttons, tables, cards. Fine-tune colors, radius, and dark mode.

03

Export DESIGN.md

Download or copy your customized DESIGN.md. Use the CLI command to regenerate anytime.

Ready to design?

No signup. No API key. No cost. Just pick, customize, and export.

Open Builder