Open source repo
What's inside shadcn-ui/
shadcn-ui/ui is a TypeScript repo with 636,228 lines written in 3,892 files. ui is built with React Router, React, Vite, and Next.js and uses MCP and Vercel. AI signed 3% of the 2,276 commits of ui.
Its description on GitHub: “Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.”
Read on October 27, 2026, at commit 8f04138.
What the card proved: what it’s built with on the left, what it uses on the right.
See each one with its proofIts folders
In figures
- lines written
- 636,228
- The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- files
- 3,892
- The product’s, not counting tests.
- test files
- 414
- The files that test the code.
SeeRepo read its code facts-only: no AI, and none of its code is kept.
Frequently asked questions
- What is shadcn-ui/ui?
- shadcn-ui/ui is a TypeScript repo with 636,228 lines written in 3,892 files. Its description on GitHub: “Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.”
- The proof: its page on GitHub
- What is ui built with?
- ui is built with React Router, React, Vite, and Next.js and uses MCP and Vercel.
- The proof: each technology with its file and line
- How much of ui did AI write?
- AI signed 3% of the 2,276 commits of ui.
- The proof: the commits each tool signed
- How many stars does ui have on GitHub?
- ui had 126,639 stars on GitHub on October 27, 2026.
- The proof: its page on GitHub
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