shadcn/ui

shadcn/ui is a set of React components that a CLI copies into your own codebase instead of installing as a dependency, built on Radix or Base UI primitives and styled with Tailwind CSS. Because the code is yours to edit, it has become the base that many design systems and component libraries in this directory extend, and its open registry format lets anyone publish compatible components. Open it to understand the copy-in model, the registry and the default look so many libraries build on.