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What is gatsby built with?

gatsby is a JavaScript repo built with React, Express, express-graphql, react-reconciler, @gatsbyjs/reach-router, and 3 more. It connects to GitHub, makes its content with react-markdown, unist-util-remove, unist-util-visit, @mdx-js/react, remark-mdx, and 12 more, validates its data with prop-types, @hapi/joi, and joi, is tested with Testing Library, msw, Jest, memfs, nock, and 2 more, and uses cache-manager. It has 344,142 written lines, with 1,688 test files.

Read on November 5, 2026, at commit 516700a. Read it as markdown

Frontend

The base 2

  • React169 files
  • @gatsbyjs/reach-router3 files

Styles 9

  • @emotion/react2 files
  • @emotion/styled2 files
  • styled-components2 files
  • Autoprefixer1 file
  • Normalize.css1 file
  • PostCSS1 file
  • glamor1 file
  • postcss-flexbugs-fixes1 file
  • styled-jsx1 file

Interface 9

  • ink10 files
  • enquirer4 files
  • prompts3 files
  • react-error-boundary1 file
  • graphiql3 files
  • ink-spinner2 files
  • boxen1 file
  • prism-react-renderer1 file
  • progress1 file

Icons 1

  • react-icons2 files

Backend

The base 2

Data 1

  • cache-manager2 files

Services 1

Support

Content 17

5 more
  • mdast-util-mdx1 file
  • mdast-util-to-hast1 file
  • mdast-util-toc1 file
  • react-markdown1 file
  • rss1 file

Validation 3

Testing 7

  • Testing Library11 files
  • msw5 files
  • jest-extended3 files
  • nock2 files
  • Jest1 file
  • xhr-mock2 files
  • memfs1 file

Tools 46

  • Babel36 files
  • Webpack28 files
  • chokidar7 files
  • danger6 files
  • glob6 files
  • MDX5 files
  • Prettier5 files
  • ESLint4 files
  • react-dev-utils3 files
  • acorn1 file
  • acorn-jsx1 file
  • acorn-loose1 file
34 more
  • acorn-walk1 file
  • babel-loader1 file
  • browserslist1 file
  • CoffeeScript1 file
  • graphql-codegen1 file
  • jscodeshift1 file
  • react-docgen1 file
  • terser1 file
  • webpack-dev-middleware1 file
  • yargs1 file
  • enhanced-resolve3 files
  • globby3 files
  • resolve-from3 files
  • @jridgewell/trace-mapping2 files
  • mini-css-extract-plugin2 files
  • recast2 files
  • @graphql-tools/load1 file
  • @graphql-tools/schema1 file
  • @pmmmwh/react-refresh-webpack-plugin1 file
  • astring1 file
  • ci-info1 file
  • copy-webpack-plugin1 file
  • css-minimizer-webpack-plugin1 file
  • envinfo1 file
  • eslint-webpack-plugin1 file
  • graphiql1 file
  • html-webpack-plugin1 file
  • mkdirp1 file
  • resolve-cwd1 file
  • rimraf1 file
  • sitemap1 file
  • terser-webpack-plugin1 file
  • webpack-merge1 file
  • webpack-virtual-modules1 file

The base 5

  • @gatsbyjs/reach-router15 files
  • react-reconciler1 file
  • react-server-dom-webpack1 file
  • express-graphql1 file
  • history1 file

Other 79

  • Lodash90 files
  • GraphQL40 files
  • Redux20 files
  • chalk18 files
  • node-fetch13 files
  • execa9 files
  • SemVer9 files
  • got6 files
  • Axios3 files
  • bluebird3 files
  • micromatch3 files
  • redux-thunk3 files
67 more
  • .ENV2 files
  • atob2 files
  • moment2 files
  • socket.io-client2 files
  • uuid2 files
  • web-vitals2 files
  • algoliasearch1 file
  • date-fns1 file
  • filesize1 file
  • Immer1 file
  • Socket.io1 file
  • fs-extra105 files
  • common-tags19 files
  • url19 files
  • fastq9 files
  • @sindresorhus/slugify5 files
  • signal-exit5 files
  • stack-trace5 files
  • debug4 files
  • strip-ansi4 files
  • @hapi/hoek3 files
  • minimatch3 files
  • p-queue3 files
  • react-helmet3 files
  • subscriptions-transport-ws3 files
  • async-retry2 files
  • camelcase2 files
  • compression2 files
  • configstore2 files
  • cors2 files
  • deepmerge2 files
  • detect-port2 files
  • fastest-levenshtein2 files
  • hash-wasm2 files
  • is-url2 files
  • mime2 files
  • mitt2 files
  • query-string2 files
  • slugify2 files
  • terminal-link2 files
  • tmp2 files
  • @graphql-tools/utils1 file
  • agentkeepalive1 file
  • anser1 file
  • cookie1 file
  • css.escape1 file
  • diff1 file
  • error-stack-parser1 file
  • escape-string-regexp1 file
  • event-target-polyfill1 file
  • express-http-proxy1 file
  • fast-json-stable-stringify1 file
  • graphql-subscriptions1 file
  • graphql-type-json1 file
  • hosted-git-info1 file
  • json-stringify-safe1 file
  • multer1 file
  • object-assign1 file
  • parseurl1 file
  • path-to-regexp1 file
  • platform1 file
  • proper-lockfile1 file
  • regenerator-runtime1 file
  • string-similarity1 file
  • whatwg-fetch1 file
  • ws1 file
  • xdg-basedir1 file

Other repos with a similar stack

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Frequently asked questions

What language is gatsby written in?
gatsby is written in JavaScript, with 344,142 written lines.
What framework does gatsby use?
gatsby is built with React, Express, express-graphql, react-reconciler, @gatsbyjs/reach-router, history, graphql-http, and react-server-dom-webpack.
What services does gatsby use?
gatsby connects to GitHub and uses cache-manager.

The proof: peril/rules/merge-on-green.ts, line 2

Does gatsby have tests?
Yes. gatsby has 1,688 test files and is tested with Testing Library, msw, Jest, memfs, nock, jest-extended, and xhr-mock.
Which repos have a stack like gatsby's?
The ones that share most of its stack:meta/docusaurussupabase/supabasevercel/next.js

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