Source: https://seerepo.com/compare/e2e-inc/e2e/vs/shadcn-ui/ui
Markdown source: https://seerepo.com/compare/e2e-inc/e2e/vs/shadcn-ui/ui.md
Description: e2e and ui share 7 technologies: MCP, Vite, React, Zod, ai, Tailwind CSS, and Lucide. Both are written in TypeScript.

# e2e vs ui

e2e and ui share 7 technologies: MCP, Vite, React, Zod, ai, Tailwind CSS, and Lucide. Both are written in TypeScript.

- [e2e-inc/e2e](https://seerepo.com/r/e2e-inc/e2e): Next generation e2e testing framework for web and mobile apps.
- [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: MCP, Vite, React, Zod, ai, Tailwind CSS, Lucide
- Only in e2e: @agentclientprotocol/sdk, @napi-rs/image, agent-device, e2b
- Only in ui: Next.js, fumadocs-core, lru-cache, Vercel, SQLite, React Router, TanStack, cn, class-variance-authority, next-themes, recharts, Radix UI, Base UI, react-aria-components, sonner, react-resizable-panels, embla-carousel-react, input-otp, react-day-picker, cmdk, dnd-kit, motion, vaul, React Hook Form, hugeicons, @tabler/icons-react, @phosphor-icons/react, @remixicon/react, @ai-sdk/react, shiki, react-qr-code, streamdown, front-matter, unist-util-visit, PostCSS, prompts, ora, postcss-selector-parser

## Side by side

| | e2e | ui |
|---|---|---|
| Size | 261,118 lines written, 265 code files | 636,360 lines written, 3,888 code files |
| Who writes it | 8.4% of its commits signed by AI. With Claude Code, Devin, and Cursor | 2.9% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, Codex, and Devin |
| Activity | Last push November 10, 2026, 1,152 commits, 13,623 stars | Last push November 8, 2026, 2,308 commits, 127,657 stars |
| Tests | 1,014 test files. 30.6% 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, e2e or ui?

ui, with 636,360 lines written; e2e has 261,118.

The proof: [shadcn-ui/ui's code at commit 8ab2771](https://github.com/shadcn-ui/ui/tree/8ab27715521cbd4f87ae6886cd989cbb678f6de7)

### Which has more GitHub stars, e2e or ui?

ui, with 127,657 stars; e2e has 13,623.

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

### Which has more tests, e2e or ui?

e2e, with 1,014 test files; ui has 415.

The proof: [e2e-inc/e2e's code at commit d8b694f](https://github.com/e2e-inc/e2e/tree/d8b694ffa48b04c94d70a11cc280267f1ea9a100)

### Which was updated more recently, e2e or ui?

e2e: its last push was on November 10, 2026, and ui's on November 8, 2026.

The proof: [e2e-inc/e2e's commits on GitHub](https://github.com/e2e-inc/e2e/commits)

### Which has more commits signed by AI, e2e or ui?

e2e: an AI signed 8.4% of its commits, with Claude Code, Devin, and Cursor; in ui, 2.9%.

The proof: [the commits each tool signed in e2e-inc/e2e](https://seerepo.com/r/e2e-inc/e2e/ai)

## Sources

- e2e-inc/e2e: Read on November 11, 2026, at commit d8b694f (https://github.com/e2e-inc/e2e/tree/d8b694ffa48b04c94d70a11cc280267f1ea9a100)
- shadcn-ui/ui: Read on November 9, 2026, at commit 8ab2771 (https://github.com/shadcn-ui/ui/tree/8ab27715521cbd4f87ae6886cd989cbb678f6de7)

## 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.