Delightful JavaScript Testing.

Babel compiler core.

Node.js test runner that lets you develop with confidence.

CLI for Jasmine, a simple JavaScript testing framework for browsers and Node

tap-producing test harness for node and browsers

takes json-cov output into stdin and POSTs to coveralls.io

JavaScript Testing utilities for React

Formats your JavaScript using prettier followed by eslint --fix

Jest plugin to use babel for transformation.

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

CLI for webpack & friends

Fixes stack traces for files with source maps

Headless WebKit with JS API

Jest's reporters

Wrappers for Redux DevTools Extension.

Helper to require() directories.

Bringing Classes to Inline Styles