Technology · Product

Jest

Product · Catalog tech@1

JavaScript testing framework.

Momentum

Each signal is ranked as a percentile among the technologies that have it. A signal without enough history is not counted, and never shown as zero. How momentum works

Momentum

Collecting1 of 5 signals

No score yet. Momentum is published only when at least 2 of the 5 signals have history. Jest has 1, so there is no single number: each signal is shown on its own below. It is not a zero, and nothing is estimated in its place.

Snapshot OCT 24, 2026 · Scoring tech@1

Official repository stars: Collecting; Star growth needs repository snapshots 30 days apart.45,460 stars now
Member repository stars: Collecting; Star growth needs repository snapshots 30 days apart.0 new members in 30 days
Package adoption: −0.6% · 30d; 13th percentile among technologies with this signalnpm, in its own unit
Open models: No official models; No official model on Hugging Face, so this signal does not apply.
News: Collecting; News counts once there are 3 events across the last 60 days; it has 0.0 in the last 30 days · 0 in the 30 before

Adoption by registry

The growth of Jest’s own packages, one row per registry in that registry’s own unit. Registries count different things over different windows, so they are never added together.

Registry	Figure	About 30 days ago → latest	Growth	Packages
npm	Downloads (30 days)	12.4B → 12.3Bdownloads / 30 days	−0.6% · 30d	54

News activity

Events · 7 days: 0published events that mention it
Events · 30 days: 0published events that mention it
Previous 30 days: 0events in the 30 days before

Momentum history

Momentum history starts OCT 8, 2026. A chart appears once two daily snapshots carry a score; none does so far.

Repositories

Official 1

jestjs/jest
Delightful JavaScript Testing.
Official repositoryTypeScript
45.5K stars

Members 48repositories tagged with one of its aliases, most-starred first

open-source-labs/Spearmint
Testing, simplified. || An inclusive, accessibility-first GUI for generating clean, semantic Javascript tests in only a few clicks of a button.
Tagged jestTypeScript
1.3K stars
ErickWendel/semana-javascript-expert06
JS Expert Week 6.0 Classes - Spotify Radio
Tagged jestJavaScript
1.3K stars
bamlab/generator-rn-toolbox
The React Native Generator to bootstrap your apps
Tagged jestJavaScript
1.2K stars
jest-community/eslint-plugin-jest
ESLint plugin for Jest
Tagged jestTypeScript
1.2K stars
just-jeb/angular-builders
Angular build facade extensions (Jest and custom webpack configuration)
Tagged jestTypeScript
1.2K stars
developit/karmatic
🦑 Easy automatic (headless) browser testing with Jest's API, but powered by Karma & Webpack.
Tagged jestJavaScript
1.2K stars
help-me-mom/ng-mocks
Angular testing library for mocking components, directives, pipes, services and facilitating TestBed setup
Tagged jestTypeScript
1.2K stars
TowhidKashem/snapchat-clone
👻 A Snapchat clone built with React and Redux. Written in Typescript. Styled with SASS. Tested with Cypress, Jest and Enzyme. Linted with Eslint and formatted with Prettier!
Tagged jestTypeScript
1.1K stars
AlexSergey/rockpack
Zero-config React with built-in SSR, automated quality gates, and AI-ready project structure - ship clean code whether you write it yourself or with an AI assistant.
Tagged jestTypeScript
1.1K stars
istanbuljs/istanbuljs
monorepo containing the various nuts and bolts that facilitate istanbul.js test instrumentation
Tagged jestJavaScript
1.1K stars
atlassian/jest-in-case
Jest utility for creating variations of the same test
Tagged jestJavaScript
1.1K stars
Skolaczk/next-starter
A Next.js starter template, packed with features like TypeScript, Tailwind CSS, Next-auth, Biome, Stripe, testing tools and more. Jumpstart your project with efficiency and style.
Tagged jestTypeScript
1K stars

Packages

“Is” packages are Jest itself; ecosystem packages depend on them. The two are counted separately and never added together. Adoption is each registry’s own figure, with its percentile within that registry.

Is 54the technology itself, most-adopted first

pretty-format
Stringify any JavaScript value.
Published from jestjs/jestnpm
854.8Mdownloads / 30 daysTop 1% on npm
@jest/types
This package contains shared types of Jest's packages.
Matches @jest/*npm
522.4Mdownloads / 30 daysTop 10% on npm
@jest/schemas
Experimental and currently incomplete module for JSON schemas for [Jest's](https://jestjs.io/) configuration.
Matches @jest/*npm
464.1Mdownloads / 30 daysTop 10% on npm
jest-worker
Module for executing heavy tasks under forked processes in parallel, by providing a `Promise` based interface, minimum overhead, and bound workers.
Published from jestjs/jestnpm
457.5Mdownloads / 30 daysTop 10% on npm
jest-util
This packages is a collection of utilities and helper functions
Published from jestjs/jestnpm
434.8Mdownloads / 30 daysTop 10% on npm
jest-regex-util
Published from jestjs/jestnpm
322.3Mdownloads / 30 daysTop 10% on npm
jest-message-util
Published from jestjs/jestnpm
313.1Mdownloads / 30 daysTop 10% on npm
jest-diff
Display differences clearly so people can review changes confidently.
Published from jestjs/jestnpm
292.5Mdownloads / 30 daysTop 10% on npm
jest-matcher-utils
A set of utility functions for expect and related packages
Published from jestjs/jestnpm
275.4Mdownloads / 30 daysTop 10% on npm
jest-mock
**Note:** More details on user side API can be found in [Jest documentation](https://jestjs.io/docs/mock-function-api).
Published from jestjs/jestnpm
262.2Mdownloads / 30 daysTop 10% on npm
jest-validate
Generic configuration validation tool that helps you with warnings, errors and deprecation messages as well as showing users examples of correct configuration.
Published from jestjs/jestnpm
246Mdownloads / 30 daysTop 10% on npm
expect
This package exports the `expect` function used in [Jest](https://jestjs.io/). You can find its documentation [on Jest's website](https://jestjs.io/docs/expect).
Published from jestjs/jestnpm
238.4Mdownloads / 30 daysTop 10% on npm

Ecosystem 107packages that depend on it, most-adopted first

@storybook/test-runner
Test runner for Storybook stories
Depends on @jest/typesnpm
9.4Mdownloads / 30 daysTop 50% on npm
jest-mock-extended
Type safe mocking extensions for jest
Depends on @jest/globalsnpm
9.4Mdownloads / 30 daysTop 50% on npm
jest-extended
Additional Jest matchers
Depends on jestnpm
9.3Mdownloads / 30 daysTop 50% on npm
eslint-plugin-jsonc
ESLint plugin for JSON, JSONC and JSON5 files.
Depends on diff-sequencesnpm
6.3Mdownloads / 30 daysTop 50% on npm
eslint-plugin-yml
This ESLint plugin provides linting rules for YAML.
Depends on diff-sequencesnpm
5.2Mdownloads / 30 daysTop 50% on npm
@copilotkit/aimock
Mock infrastructure for AI application testing — point your SDK at one local port and every provider, protocol, and service answers deterministically.
Depends on jestnpm
5.1Mdownloads / 30 daysTop 50% on npm
jest-preset-angular
Jest preset configuration for Angular projects
Depends on @jest/environment-jsdom-abstractnpm
5Mdownloads / 30 daysTop 50% on npm
@lingui/conf
Resolve and validate Lingui configuration
Depends on jest-validatenpm
4.9Mdownloads / 30 daysTop 50% on npm
expect-webdriverio
WebdriverIO Assertion Library
Depends on expectnpm
4.8Mdownloads / 30 daysTop 50% on npm
jest-image-snapshot
Jest matcher for image comparisons. Most commonly used for visual regression testing.
Depends on jestnpm
3.7Mdownloads / 30 daysTop 50% on npm
prettier-eslint
Formats your JavaScript using prettier followed by eslint --fix
Depends on pretty-formatnpm
3.5Mdownloads / 30 daysTop 50% on npm
@datadog/datadog-ci-base
Base package for Datadog CI
Depends on jest-diffnpm
3.4Mdownloads / 30 daysTop 50% on npm

Latest news the 0 latest events that mention it

No published news event mentions Jest yet.