Source: https://seerepo.com/r/adobe/react-spectrum/built Markdown source: https://seerepo.com/r/adobe/react-spectrum/built.md Description: react-spectrum is a TypeScript repo built with React. # What is react-spectrum built with? react-spectrum is a TypeScript repo built with React. It makes its content with unist-util-visit, js-yaml, mdast-util-toc, remark-frontmatter, remark-mdx, and 2 more, validates its data with Zod, is tested with playwright, Vitest, vitest-browser-react, Testing Library, Faker, and 2 more, and uses MCP. It has 619,804 written lines, with 549 test files. Read on November 7, 2026, at commit 82959b6. Repository: https://github.com/adobe/react-spectrum ## Frontend (/) ### Styles - **[Tailwind CSS](https://seerepo.com/uses/tailwind-css)** - **[PostCSS](https://seerepo.com/uses/postcss)**: 7 files - **postcss-value-parser**: 1 file ## Support (/) ### Testing - **playwright**: 1 file - **Vitest**: 1 file - **vitest-browser-react**: 1 file ### Tools - **fast-glob**: 2 files - **@parcel/plugin**: 1 file - **glob**: 1 file ### Other - **chalk**: 2 files - **diff**: 1 file ## Frontend (packages/@adobe/react-spectrum) ### The base - **[React](https://seerepo.com/uses/react)**: 170 files ### Interface - **[react-transition-group](https://seerepo.com/uses/react-transition-group)**: 2 files ## Support (packages/@adobe/react-spectrum) ### Testing - **Testing Library**: 69 files - **Faker**: 1 file ### Tools - **Storybook**: 5 files ### Other - **clsx**: 2 files - **client-only**: 1 file - **use-sync-external-store**: 1 file ## Frontend (packages/@adobe/spectrum-css-builder-temp) ### Styles - **[PostCSS](https://seerepo.com/uses/postcss)**: 1 file - **postcss-custom-properties**: 1 file - **postcss-import**: 1 file - **postcss-value-parser**: 1 file ## Support (packages/@adobe/spectrum-css-builder-temp) ### Tools - **gulp**: 1 file - **gulp-concat**: 1 file ### Other - **through2**: 1 file ## Support (packages/@internationalized/message) ### Other - **intl-messageformat**: 1 file ## Support (packages/@internationalized/number) ### Testing - **fast-check**: 1 file ## Support (packages/@internationalized/string-compiler) ### Other - **@formatjs/icu-messageformat-parser**: 1 file ## Frontend (packages/@react-aria/i18n) ### The base - **[React](https://seerepo.com/uses/react)**: 1 file ## Frontend (packages/@react-spectrum/ai) ### The base - **[React](https://seerepo.com/uses/react)**: 17 files ## Support (packages/@react-spectrum/ai) ### Testing - **Testing Library**: 8 files - **Vitest**: 1 file - **vitest-browser-react**: 1 file ## Frontend (packages/@react-spectrum/s2) ### The base - **[React](https://seerepo.com/uses/react)**: 628 files ## Support (packages/@react-spectrum/s2) ### Testing - **Testing Library**: 19 files - **Vitest**: 12 files - **vitest-browser-react**: 1 file ### Tools - **Storybook**: 2 files ## Frontend (packages/@react-spectrum/story-utils) ### The base - **[React](https://seerepo.com/uses/react)**: 1 file ## Support (packages/@spectrum-icons/build-tools) ### Tools - **@svgr/core**: 1 file ## Frontend (packages/@spectrum-icons/express) ### The base - **[React](https://seerepo.com/uses/react)**: 1 file ## Support (packages/@spectrum-icons/express) ### Tools - **Storybook**: 1 file ## Frontend (packages/@spectrum-icons/illustrations) ### The base - **[React](https://seerepo.com/uses/react)**: 9 files ## Frontend (packages/@spectrum-icons/workflow) ### The base - **[React](https://seerepo.com/uses/react)**: 1 file ## Support (packages/@spectrum-icons/workflow) ### Tools - **Storybook**: 1 file ## Frontend (packages/dev/codemods) ### The base - **[React](https://seerepo.com/uses/react)**: 7 files ### Interface - **[boxen](https://seerepo.com/uses/boxen)**: 1 file ## Support (packages/dev/codemods) ### Tools - **Babel**: 53 files - **jscodeshift**: 8 files - **recast**: 3 files ### Other - **chalk**: 3 files - **execa**: 1 file ## Support (packages/dev/eslint-plugin-rsp-rules) ### Tools - **ESLint**: 11 files - **find-up**: 1 file ## Backend (packages/dev/mcp/s2) ### Services - **[MCP](https://seerepo.com/uses/mcp)**: 1 file · [packages/dev/mcp/shared/src/server.ts, line 4](https://github.com/adobe/react-spectrum/blob/82959b6a9ac4ea717228636b99fc8fd24736a7f4/packages/dev/mcp/shared/src/server.ts#L4) ## Support (packages/dev/mcp/s2) ### Validation - **[Zod](https://seerepo.com/uses/zod)**: 1 file ## Backend (packages/dev/mcp/shared) ### Services - **[MCP](https://seerepo.com/uses/mcp)**: 1 file · [packages/dev/mcp/shared/src/server.ts, line 4](https://github.com/adobe/react-spectrum/blob/82959b6a9ac4ea717228636b99fc8fd24736a7f4/packages/dev/mcp/shared/src/server.ts#L4) ## Support (packages/dev/mcp/shared) ### Validation - **[Zod](https://seerepo.com/uses/zod)**: 1 file ## Support (packages/dev/optimize-locales-plugin) ### Tools - **unplugin**: 1 file ## Support (packages/dev/parcel-namer-docs) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-namer-intl) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-namer-s2) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-optimizer-strict-mode) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-packager-docs) ### Tools - **@parcel/plugin**: 1 file ## Frontend (packages/dev/parcel-packager-ssg) ### The base - **[React](https://seerepo.com/uses/react)**: 1 file ## Support (packages/dev/parcel-packager-ssg) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-reporter-turbosnap-stats) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-resolver-build) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-resolver-docs) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-resolver-optimize-locales) ### Tools - **@parcel/plugin**: 1 file ## Frontend (packages/dev/parcel-resolver-storybook) ### The base - **[React](https://seerepo.com/uses/react)**: 1 file ## Support (packages/dev/parcel-resolver-storybook) ### Tools - **@parcel/plugin**: 1 file - **Storybook**: 1 file ## Support (packages/dev/parcel-transformer-css-env) ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-transformer-docs) ### Tools - **Babel**: 1 file - **doctrine**: 1 file - **parcel**: 1 file ## Support (packages/dev/parcel-transformer-intl) ### Tools - **@parcel/plugin**: 1 file ## Frontend (packages/dev/parcel-transformer-mdx-docs) ### Styles - **[lightningcss](https://seerepo.com/uses/lightningcss)**: 1 file ## Support (packages/dev/parcel-transformer-mdx-docs) ### Content - **[unist-util-visit](https://seerepo.com/uses/unist-util-visit)**: 2 files - **[js-yaml](https://seerepo.com/uses/js-yaml)**: 1 file - **mdast-util-toc**: 1 file - **[remark-frontmatter](https://seerepo.com/uses/remark-frontmatter)**: 1 file - **remark-mdx**: 1 file - **[remark-parse](https://seerepo.com/uses/remark-parse)**: 1 file - **[unified](https://seerepo.com/uses/unified)**: 1 file ### Tools - **@parcel/plugin**: 1 file - **Babel**: 1 file - **MDX**: 1 file - **recast**: 1 file ### Other - **unist-util-flatmap**: 2 files ## Support (packages/dev/parcel-transformer-mdx-extract) ### Content - **remark-mdx**: 1 file - **[remark-parse](https://seerepo.com/uses/remark-parse)**: 1 file - **[unified](https://seerepo.com/uses/unified)**: 1 file - **[unist-util-visit](https://seerepo.com/uses/unist-util-visit)**: 1 file ### Tools - **@parcel/plugin**: 1 file ## Support (packages/dev/parcel-transformer-mdx-storybook) ### Tools - **@parcel/plugin**: 1 file - **MDX**: 1 file ## Support (packages/dev/parcel-transformer-s2-icon) ### Tools - **@parcel/plugin**: 1 file - **@svgr/core**: 1 file ## Support (packages/dev/parcel-transformer-storybook) ### Tools - **react-docgen-typescript**: 2 files - **Babel**: 1 file - **parcel**: 1 file - **Storybook**: 1 file - **TypeScript**: 1 file ## Support (packages/dev/s2-icon-builder) ### Tools - **@parcel/core**: 1 file - **glob**: 1 file ## Support (packages/dev/storybook-builder-parcel) ### Tools - **Storybook**: 2 files - **@parcel/core**: 1 file ### Other - **http-proxy-middleware**: 1 file ## Frontend (packages/react-aria-components) ### The base - **[React](https://seerepo.com/uses/react)**: 71 files ## Support (packages/react-aria-components) ### Testing - **Testing Library**: 54 files - **Vitest**: 14 files - **vitest-browser-react**: 11 files ### Tools - **Storybook**: 5 files ### Other - **client-only**: 71 files - **use-sync-external-store**: 1 file ## Frontend (packages/react-aria) ### The base - **[React](https://seerepo.com/uses/react)**: 188 files ## Support (packages/react-aria) ### Testing - **Testing Library**: 33 files - **shadow-dom-testing-library**: 2 files - **Vitest**: 1 file - **vitest-browser-react**: 1 file ### Tools - **Storybook**: 3 files ### Other - **clsx**: 2 files - **use-sync-external-store**: 2 files ## Frontend (packages/react-stately) ### The base - **[React](https://seerepo.com/uses/react)**: 59 files ## Support (packages/react-stately) ### Testing - **Testing Library**: 2 files - **fast-check**: 1 file ### Tools - **Storybook**: 1 file ### Other - **use-sync-external-store**: 1 file ## Frontend (packages/tailwindcss-react-aria-components) ### Styles - **@tailwindcss/postcss**: 1 file - **[PostCSS](https://seerepo.com/uses/postcss)**: 1 file - **[Tailwind CSS](https://seerepo.com/uses/tailwind-css)**: 1 file ## Other repos with a similar stack - [supabase/supabase](https://seerepo.com/r/supabase/supabase/built): React, MCP, Tailwind CSS, Zod, unist-util-visit, js-yaml, remark-frontmatter, remark-parse, unified · [Compare](https://seerepo.com/compare/adobe/react-spectrum/vs/supabase/supabase) - [thedotmack/claude-mem](https://seerepo.com/r/thedotmack/claude-mem/built): React, MCP, Tailwind CSS, PostCSS, Zod, unist-util-visit, remark-parse, unified · [Compare](https://seerepo.com/compare/adobe/react-spectrum/vs/thedotmack/claude-mem) - [meta/docusaurus](https://seerepo.com/r/meta/docusaurus/built): React, PostCSS, lightningcss, unist-util-visit, js-yaml, remark-frontmatter, remark-mdx, unified · [Compare](https://seerepo.com/compare/adobe/react-spectrum/vs/meta/docusaurus) - [gatsbyjs/gatsby](https://seerepo.com/r/gatsbyjs/gatsby/built): React, PostCSS, boxen, unist-util-visit, mdast-util-toc, remark-mdx, remark-parse, unified · [Compare](https://seerepo.com/compare/adobe/react-spectrum/vs/gatsbyjs/gatsby) - [CherryHQ/cherry-studio](https://seerepo.com/r/CherryHQ/cherry-studio/built): React, MCP, Tailwind CSS, PostCSS, Zod, unist-util-visit, remark-parse, unified · [Compare](https://seerepo.com/compare/adobe/react-spectrum/vs/CherryHQ/cherry-studio) - [cline/cline](https://seerepo.com/r/cline/cline/built): React, MCP, Tailwind CSS, Zod, unist-util-visit, js-yaml, unified · [Compare](https://seerepo.com/compare/adobe/react-spectrum/vs/cline/cline) ## Frequently asked questions ### What language is react-spectrum written in? react-spectrum is written in TypeScript, with 619,804 written lines. ### What framework does react-spectrum use? react-spectrum is built with React. ### What services does react-spectrum use? react-spectrum uses MCP. The proof: [packages/dev/mcp/shared/src/server.ts, line 4](https://github.com/adobe/react-spectrum/blob/82959b6a9ac4ea717228636b99fc8fd24736a7f4/packages/dev/mcp/shared/src/server.ts#L4) ### Does react-spectrum have tests? Yes. react-spectrum has 549 test files and is tested with playwright, Vitest, vitest-browser-react, Testing Library, Faker, fast-check, and shadow-dom-testing-library. ### Which repos have a stack like react-spectrum's? The ones that share most of its stack: supabase/supabase, thedotmack/claude-mem, and meta/docusaurus. ## 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.