Once UI

Once UI is an open‑source design system built for Next.js and Figma that provides over 100 ready‑to‑use React components, 75+ copy‑paste blocks, and deployment‑ready app templates. It combines a semantic styling system, Supabase starter kits, and a Figma token library, letting creators ship functional websites and apps in minutes. The Pro subscription adds premium templates, priority support, and regular updates, all backed by a vibrant community.