Source: https://seerepo.com/compare/decolua/9router/vs/shadcn-ui/ui
Markdown source: https://seerepo.com/compare/decolua/9router/vs/shadcn-ui/ui.md
Description: 9router and ui share 6 technologies: Next.js, React, Tailwind CSS, recharts, dnd-kit, and ora. 9router is written in JavaScript and ui in TypeScript.

# 9router vs ui

9router and ui share 6 technologies: Next.js, React, Tailwind CSS, recharts, dnd-kit, and ora. 9router is written in JavaScript and ui in TypeScript.

- [decolua/9router](https://seerepo.com/r/decolua/9router): Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-fallback, RTK -40% tokens, never hit limits.
- [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, recharts, dnd-kit, ora
- Only in 9router: @next/third-parties, SQLite, sql.js, @monaco-editor/react, xyflow, bcryptjs, jose, @node-saml/node-saml, marked, prop-types, enquirer
- Only in ui: lru-cache, Vercel, MCP, React Router, Vite, TanStack, cn, class-variance-authority, next-themes, Radix UI, Base UI, sonner, react-resizable-panels, embla-carousel-react, react-day-picker, cmdk, motion, vaul, React Hook Form, Lucide, hugeicons, @tabler/icons-react, @phosphor-icons/react, @remixicon/react, ai, @ai-sdk/react, shiki, streamdown, unist-util-visit, Zod, tailwindcss-animate, PostCSS, geist, prompts

## Side by side

| | 9router | ui |
|---|---|---|
| Size | 242,297 lines written, 1,093 code files | 636,496 lines written, 3,892 code files |
| Who writes it | 29.4% of its commits signed by AI. With Cursor, Claude Code, OpenHands, and GitHub Copilot | 3% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, Codex, and Devin |
| Activity | Last push October 28, 2026, 1,476 commits, 32,071 stars | Last push November 4, 2026, 2,298 commits, 127,326 stars |
| Tests | 434 test files. 30.1% 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, 9router or ui?

ui, with 636,496 lines written; 9router has 242,297.

The proof: [shadcn-ui/ui's code at commit 8a35366](https://github.com/shadcn-ui/ui/tree/8a3536678a528cc012b9e62484290e79d0be410f)

### Which has more GitHub stars, 9router or ui?

ui, with 127,326 stars; 9router has 32,071.

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

### Which has more tests, 9router or ui?

9router, with 434 test files; ui has 415.

The proof: [decolua/9router's code at commit 1fe586b](https://github.com/decolua/9router/tree/1fe586bb1cf35e1ed0cb2150a8ef7d1db040b21d)

### Which was updated more recently, 9router or ui?

ui: its last push was on November 4, 2026, and 9router's on October 28, 2026.

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

### Which has more commits signed by AI, 9router or ui?

9router: an AI signed 29.4% of its commits, with Cursor, Claude Code, OpenHands, and GitHub Copilot; in ui, 3%.

The proof: [the commits each tool signed in decolua/9router](https://seerepo.com/r/decolua/9router/ai)

## Sources

- decolua/9router: Read on November 7, 2026, at commit 1fe586b (https://github.com/decolua/9router/tree/1fe586bb1cf35e1ed0cb2150a8ef7d1db040b21d)
- 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.