Source: https://seerepo.com/compare/pbakaus/impeccable/vs/shadcn-ui/ui
Markdown source: https://seerepo.com/compare/pbakaus/impeccable/vs/shadcn-ui/ui.md
Description: impeccable and ui share 5 technologies: Next.js, React, Tailwind CSS, ai, and Zod. impeccable is written in Rust and ui in TypeScript.

# impeccable vs ui

impeccable and ui share 5 technologies: Next.js, React, Tailwind CSS, ai, and Zod. impeccable is written in Rust and ui in TypeScript.

- [pbakaus/impeccable](https://seerepo.com/r/pbakaus/impeccable): The design vocabulary for your coding agent. Steer with polish and bolder, review with critique and audit, catch AI slop before it ships.
- [shadcn-ui/ui](https://seerepo.com/r/shadcn-ui/ui): Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

## What they share and what sets them apart

- In common: Next.js, React, Tailwind CSS, ai, Zod
- Only in impeccable: @emotion/react, @ai-sdk/google, image, png, html5ever, zip, @sveltejs/adapter-auto
- Only in ui: lru-cache, Vercel, MCP, React Router, Vite, TanStack, cn, class-variance-authority, next-themes, recharts, Radix UI, Base UI, sonner, react-resizable-panels, embla-carousel-react, react-day-picker, cmdk, dnd-kit, motion, vaul, React Hook Form, Lucide, hugeicons, @tabler/icons-react, @phosphor-icons/react, @remixicon/react, @ai-sdk/react, shiki, streamdown, unist-util-visit, tailwindcss-animate, PostCSS, geist, prompts, ora

## Side by side

| | impeccable | ui |
|---|---|---|
| Size | 688,599 lines written, 342 code files | 636,496 lines written, 3,892 code files |
| Who writes it | 67.1% of its commits signed by AI. With Claude Code, Cursor, Codex, and GitHub Copilot | 3% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, Codex, and Devin |
| Activity | Last push November 4, 2026, 2,325 commits, 102,251 stars | Last push November 4, 2026, 2,298 commits, 127,326 stars |
| Tests | 738 test files. 7.9% of its code files have a test that imports them | 415 test files. 3.8% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, impeccable or ui?

impeccable, with 688,599 lines written; ui has 636,496.

The proof: [pbakaus/impeccable's code at commit 2c95b19](https://github.com/pbakaus/impeccable/tree/2c95b1968ca74c5d2c4c0503dcee72f6d0d555ea)

### Which has more GitHub stars, impeccable or ui?

ui, with 127,326 stars; impeccable has 102,251.

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

### Which has more tests, impeccable or ui?

impeccable, with 738 test files; ui has 415.

The proof: [pbakaus/impeccable's code at commit 2c95b19](https://github.com/pbakaus/impeccable/tree/2c95b1968ca74c5d2c4c0503dcee72f6d0d555ea)

### Which was updated more recently, impeccable or ui?

Both got their last push on November 4, 2026.

The proof: [pbakaus/impeccable's commits on GitHub](https://github.com/pbakaus/impeccable/commits)

### Which has more commits signed by AI, impeccable or ui?

impeccable: an AI signed 67.1% of its commits, with Claude Code, Cursor, Codex, and GitHub Copilot; in ui, 3%.

The proof: [the commits each tool signed in pbakaus/impeccable](https://seerepo.com/r/pbakaus/impeccable/ai)

## Sources

- pbakaus/impeccable: Read on November 4, 2026, at commit 2c95b19 (https://github.com/pbakaus/impeccable/tree/2c95b1968ca74c5d2c4c0503dcee72f6d0d555ea)
- shadcn-ui/ui: Read on November 4, 2026, at commit 8a35366 (https://github.com/shadcn-ui/ui/tree/8a3536678a528cc012b9e62484290e79d0be410f)

## 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.