What is jest built with?

Q: Which repos have a stack like jest's?

The ones that share most of its stack: google-gemini/gemini-cli, meta/docusaurus, and laurent22/joplin.

jest is a TypeScript repo built with React and react. It makes its content with js-yaml, validates its data with @sinclair/typebox, and is tested with istanbul-lib-coverage, istanbul-lib-report, istanbul-reports, jsdom, Testing Library, and 7 more. It has 195,068 written lines, with 1,729 test files.

Read on November 10, 2026, at commit 7261444. 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

React3 files
react1 file

Interface 1

prompts2 files

Support

Content 1

js-yaml1 file

Testing 12

istanbul-lib-coverage7 files
@fast-check/jest6 files
jsdom5 files
istanbul-reports4 files
@sinonjs/fake-timers3 files
istanbul-lib-report3 files
istanbul-lib-source-maps3 files
React3 files
babel-plugin-tester1 file
Testing Library1 file
collect-v8-coverage4 files
v8-to-istanbul1 file

Tools 29

tstyche24 files
Babel11 files
TypeScript5 files
yargs5 files
glob4 files
fb-watchman3 files
Prettier2 files
benchmark1 file
ESLint1 file
istanbul-lib-instrument1 file
typescript-eslint1 file
slash18 files

17 more

exit-x9 files
@jridgewell/trace-mapping5 files
tempy5 files
ci-info3 files
convert-source-map3 files
anymatch2 files
babel-plugin-istanbul2 files
import-local2 files
synckit2 files
@bcoe/v8-coverage1 file
@parcel/watcher1 file
cjs-module-lexer1 file
detect-newline1 file
es-module-lexer1 file
eslint-plugin-jest1 file
find-process1 file
pirates1 file

Validation 1

@sinclair/typebox2 files

Other 43

chalk74 files
execa9 files
SemVer5 files
immutable4 files
unrs-resolver3 files
@ungap/structured-clone1 file
fdir1 file
Lodash1 file
micromatch1 file
pure-rand1 file
graceful-fs84 files
url8 files

31 more

dedent6 files
p-limit6 files
ansi-escapes5 files
ansi-styles3 files
merge-stream3 files
picomatch3 files
stack-utils3 files
ansi-regex2 files
callsites2 files
clsx2 files
co2 files
deepmerge2 files
emittery2 files
fast-json-stable-stringify2 files
get-stream2 files
is-generator-fn2 files
promise2 files
string-length2 files
strip-bom2 files
strip-json-comments2 files
camelcase1 file
diff1 file
isbinaryfile1 file
leven1 file
natural-compare1 file
node-notifier1 file
parse-json1 file
supports-color1 file
which1 file
worker-farm1 file
write-file-atomic1 file

Other repos with a similar stack

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

google-geminigemini-cli
108.8k
An open-source AI agent that brings the power of Gemini directly into your terminal.
3 of 88 in commonCompare →
metadocusaurus
66.7k
Easy to maintain open source documentation websites.
3 of 88 in commonCompare →
laurent22joplin
57.1k
Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.
3 of 88 in commonCompare →
medusajsmedusa
37.1k
The world's most flexible commerce platform for agents and developers
3 of 88 in commonCompare →
freeCodeCampfreeCodeCamp
459k
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
2 of 88 in common
NousResearchhermes-agent
260.3k
The agent that grows with you
2 of 88 in common · Python

Frequently asked questions

What language is jest written in?

jest is written in TypeScript, with 195,068 written lines.

What framework does jest use?

jest is built with React and react.

Does jest have tests?

Yes. jest has 1,729 test files and is tested with istanbul-lib-coverage, istanbul-lib-report, istanbul-reports, jsdom, Testing Library, babel-plugin-tester, @fast-check/jest, @sinonjs/fake-timers, istanbul-lib-source-maps, collect-v8-coverage, v8-to-istanbul, and React.

Which repos have a stack like jest's?

The ones that share most of its stack:google-gemini/gemini-cli meta/docusaurus laurent22/joplin