Source: https://seerepo.com/r/shadcn-ui/ui
Markdown source: https://seerepo.com/r/shadcn-ui/ui.md
Description: 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.

# What's inside shadcn-ui/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.”

TypeScript · MIT · 126,639 stars · GitHub: https://github.com/shadcn-ui/ui

Read on October 27, 2026, at commit 8f04138.

## Its folders

- [What is ui built with?](https://seerepo.com/r/shadcn-ui/ui/built): ui is built with React Router, React, Vite, and Next.js and uses MCP and Vercel.
- [How much of ui did AI write?](https://seerepo.com/r/shadcn-ui/ui/ai): AI signed 3% of the 2,276 commits of ui.

## In figures

- 636,228 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 3,892 files: The product’s, not counting tests.
- 414 test files: The files that test the code.
- 6 technologies: Each one with the file and line that prove it.

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](https://github.com/shadcn-ui/ui)

### 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](https://seerepo.com/r/shadcn-ui/ui/built)

### How much of ui did AI write?

AI signed 3% of the 2,276 commits of ui.

The proof: [the commits each tool signed](https://seerepo.com/r/shadcn-ui/ui/ai)

### What license does ui have?

ui is released under the MIT license.

The proof: [its page on GitHub](https://github.com/shadcn-ui/ui)

### 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](https://github.com/shadcn-ui/ui)

## Add this badge to your README

It links to this page and updates itself each time SeeRepo reads the repo.

```markdown
[![shadcn-ui/ui on SeeRepo](https://seerepo.com/badge/shadcn-ui/ui.svg)](https://seerepo.com/r/shadcn-ui/ui?de=insignia)
```

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.