Source: https://seerepo.com/compare/mui/material-ui/vs/storybookjs/storybook
Markdown source: https://seerepo.com/compare/mui/material-ui/vs/storybookjs/storybook.md
Description: material-ui and storybook share 5 technologies: Vite, React, Next.js, prop-types, and emotion. material-ui is written in JavaScript and storybook in TypeScript.

# material-ui vs storybook

material-ui and storybook share 5 technologies: Vite, React, Next.js, prop-types, and emotion. material-ui is written in JavaScript and storybook in TypeScript.

- [mui/material-ui](https://seerepo.com/r/mui/material-ui): Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.
- [storybookjs/storybook](https://seerepo.com/r/storybookjs/storybook): Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

## What they share and what sets them apart

- In common: Vite, React, Next.js, prop-types, emotion
- Only in material-ui: @slack/bolt, React Router, PostCSS, @material-ui/core, mustache, @emotion/react, @popperjs/core, react-transition-group, styled-components
- Only in storybook: react-router-dom, polka, Angular, Preact, react-native, Svelte, TanStack, Vue, Lit, Radix UI, valibot, @standard-schema/spec, react-aria, react-aria-components, @clack/prompts, downshift, react-helmet-async, react-syntax-highlighter, react-textarea-autosize, use-resize-observer, ansi-to-html, yaml, js-yaml, mdast-util-from-markdown, mdast-util-mdx, mdast-util-mdx-jsx, micromark-extension-mdxjs, qrcode.react, Zod, postcss-load-config, styled-jsx, entities

## Side by side

| | material-ui | storybook |
|---|---|---|
| Size | 775,910 lines written, 23,407 code files | 729,169 lines written, 2,969 code files |
| Who writes it | 0.3% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 40% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, CodeRabbit, Codex, and Amp |
| Activity | Last push November 4, 2026, 26,756 commits, 99,297 stars | Last push November 4, 2026, 63,422 commits, 91,452 stars |
| Tests | 1,195 test files. 2.2% of its code files have a test that imports them | 1,128 test files. 35.9% 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, material-ui or storybook?

material-ui, with 775,910 lines written; storybook has 729,169.

The proof: [mui/material-ui's code at commit 403986a](https://github.com/mui/material-ui/tree/403986ae957cea6959358fb8dbefc2178b62f2d5)

### Which has more GitHub stars, material-ui or storybook?

material-ui, with 99,297 stars; storybook has 91,452.

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

### Which has more tests, material-ui or storybook?

material-ui, with 1,195 test files; storybook has 1,128.

The proof: [mui/material-ui's code at commit 403986a](https://github.com/mui/material-ui/tree/403986ae957cea6959358fb8dbefc2178b62f2d5)

### Which was updated more recently, material-ui or storybook?

Both got their last push on November 4, 2026.

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

### Which has more commits signed by AI, material-ui or storybook?

storybook: an AI signed 40% of its commits, with Claude Code, Cursor, GitHub Copilot, CodeRabbit, Codex, and Amp; in material-ui, 0.3%.

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

## Sources

- mui/material-ui: Read on November 4, 2026, at commit 403986a (https://github.com/mui/material-ui/tree/403986ae957cea6959358fb8dbefc2178b62f2d5)
- storybookjs/storybook: Read on November 4, 2026, at commit f6d12ac (https://github.com/storybookjs/storybook/tree/f6d12ac3ddd01e7880ebd7e36d3751b32907778d)

## 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.