Source: https://seerepo.com/compare/carbon-design-system/carbon/vs/storybookjs/storybook
Markdown source: https://seerepo.com/compare/carbon-design-system/carbon/vs/storybookjs/storybook.md
Description: carbon and storybook share 5 technologies: React, Vue, Lit, prop-types, and downshift. Both are written in TypeScript.

# carbon vs storybook

carbon and storybook share 5 technologies: React, Vue, Lit, prop-types, and downshift. Both are written in TypeScript.

- [carbon-design-system/carbon](https://seerepo.com/r/carbon-design-system/carbon): A design system built by IBM
- [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: React, Vue, Lit, prop-types, downshift
- Only in carbon: GitHub, Sass, progress-estimator, js-yaml, svgson, joi, classnames, @floating-ui/react, flatpickr, motion, tabbable, enquirer, css, Autoprefixer, cssnano, PostCSS, postcss-flexbugs-fixes, @floating-ui/dom, @webcomponents/webcomponentsjs
- Only in storybook: Vite, react-router-dom, store2, polka, Angular, ember-source, Next.js, Preact, react-native, Svelte, TanStack, srvx, @next/env, Radix UI, Storybook, tmcp, valibot, @standard-schema/spec, @tmcp/adapter-valibot, @neoconfetti/react, @react-aria/live-announcer, polished, emotion, react-aria, react-aria-components, @react-types/shared, react-stately, react-transition-state, @clack/prompts, react-helmet-async, react-joyride, @devtools-ds/object-inspector, react-inspector, react-syntax-highlighter, react-textarea-autosize, use-resize-observer, ansi-to-html, yaml, EJS, mdast-util-from-markdown, mdast-util-mdx, mdast-util-mdx-jsx, micromark-extension-mdxjs, qrcode.react, Zod, postcss-load-config, styled-jsx, probe-image-size, entities

## Side by side

| | carbon | storybook |
|---|---|---|
| Size | 525,904 lines written, 2,016 code files | 744,893 lines written, 2,856 code files |
| Who writes it | 0% of its commits signed by AI. With Claude Code | 4.6% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, CodeRabbit, Codex, and Amp |
| Activity | Last push November 14, 2026, 14,276 commits, 9,624 stars | Last push November 12, 2026, 63,921 commits, 91,542 stars |
| Tests | 824 test files. 17.2% of its code files have a test that imports them | 1,470 test files. 39% 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, carbon or storybook?

storybook, with 744,893 lines written; carbon has 525,904.

The proof: [storybookjs/storybook's code at commit 69b9e07](https://github.com/storybookjs/storybook/tree/69b9e07a0c3cb996c2a026dde1d2f5c4dcd55624)

### Which has more GitHub stars, carbon or storybook?

storybook, with 91,542 stars; carbon has 9,624.

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

### Which has more tests, carbon or storybook?

storybook, with 1,470 test files; carbon has 824.

The proof: [storybookjs/storybook's code at commit 69b9e07](https://github.com/storybookjs/storybook/tree/69b9e07a0c3cb996c2a026dde1d2f5c4dcd55624)

### Which was updated more recently, carbon or storybook?

carbon: its last push was on November 14, 2026, and storybook's on November 12, 2026.

The proof: [carbon-design-system/carbon's commits on GitHub](https://github.com/carbon-design-system/carbon/commits)

### Which has more commits signed by AI, carbon or storybook?

storybook: an AI signed 4.6% of its commits, with Claude Code, Cursor, GitHub Copilot, CodeRabbit, Codex, and Amp.

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

## Sources

- carbon-design-system/carbon: Read on November 14, 2026, at commit fa75d78 (https://github.com/carbon-design-system/carbon/tree/fa75d78b0d4b9e78e1e76bf3e459f4fc12eabeef)
- storybookjs/storybook: Read on November 12, 2026, at commit 69b9e07 (https://github.com/storybookjs/storybook/tree/69b9e07a0c3cb996c2a026dde1d2f5c4dcd55624)

## 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.