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What is carbon built with?

carbon is a TypeScript repo built with React, Vue, and Lit. It connects to GitHub, makes its content with js-yaml and svgson, validates its data with prop-types and joi, and is tested with @playwright/test, Testing Library, memfs, Jest, @open-wc/testing, and 1 more. It has 525,904 written lines, with 824 test files.

Read on November 14, 2026, at commit fa75d78. Read it as markdown

The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.

Frontend

The base 2

Styles 7

Interface 9

Backend

Services 1

Support

Testing 6

  • Testing Library274 files
  • @open-wc/testing137 files
  • @playwright/test97 files
  • @web/test-runner-commands14 files
  • Jest1 file
  • memfs9 files

Tools 15

  • TypeScript9 files
  • Inquirer8 files
  • tsdown8 files
  • Babel4 files
  • Prettier3 files
  • Storybook3 files
  • yargs2 files
  • glob1 file
  • jscodeshift1 file
  • SVGO1 file
  • fast-glob4 files
  • globby1 file
3 more
  • is-git-clean1 file
  • klaw-sync1 file
  • replace-in-file1 file

Validation 2

Content 2

The base 1

Other 22

  • @lit/context40 files
  • chalk7 files
  • es-toolkit5 files
  • execa5 files
  • Lodash4 files
  • SemVer4 files
  • @juggle/resize-observer1 file
  • nanoid1 file
  • react-is1 file
  • StackBlitz1 file
  • use-sync-external-store1 file
  • fs-extra31 files
10 more
  • change-case-all9 files
  • react-fast-compare7 files
  • child-process-promise2 files
  • tinyclip2 files
  • @internationalized/number1 file
  • color1 file
  • copy-to-clipboard1 file
  • cross-spawn1 file
  • invariant1 file
  • temporal-polyfill1 file

Other repos with a similar stack

Ordered by how much of its stack they share with carbon, then by stars.

Frequently asked questions

What language is carbon written in?
carbon is written in TypeScript, with 525,904 written lines.
What framework does carbon use?
carbon is built with React, Vue, and Lit.
What services does carbon use?
carbon connects to GitHub.

The proof: packages/cli/src/commands/contribute/tools/getGitHubClient.js, line 13

Does carbon have tests?
Yes. carbon has 824 test files and is tested with @playwright/test, Testing Library, memfs, Jest, @open-wc/testing, and @web/test-runner-commands.
Which repos have a stack like carbon's?
The ones that share most of its stack:gatsbyjs/gatsbystorybookjs/storybookcypress-io/cypress

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