TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

Next generation frontend tooling. It's fast!

📋 React Hooks for form state management and validation (Web + React Native)

🚫💩 — Run tasks like formatters and linters against staged git files

Official React bindings for Redux

The official, opinionated, batteries-included toolset for efficient Redux development

Isolated React component development environment with a living style guide

Prettier is an opinionated code formatter.

Delightful JavaScript Testing.

🦉 Custom jest matchers to test the state of the DOM

🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

A stylelint custom rule to check the use of scss variable on declaration.

A mighty CSS linter that helps you avoid errors and enforce conventions.

Find and fix problems in your JavaScript code.

Parse CSS and add vendor prefixes to rules by Can I Use

🌈 Node.js bindings to libsass

The 1.x line is frozen - features and bugfixes now happen on https://github.com/yarnpkg/berry

JavaScript parser / mangler / compressor / beautifier library for NodeJS

Easy monkey-patching for node.js unit tests

Declarative routing for React

Parse, validate, manipulate, and display dates in javascript.

☕️ Classic, reliable, trusted test framework for Node.js and the browser

A modern JavaScript utility library delivering modularity, performance, & extras.

A JavaScript implementation of various web standards, for use with Node.js

ESLint plugin with rules that help validate proper imports.

A simple javascript utility for conditionally joining classNames together

The library for web and native user interfaces.

🐠 Babel is a compiler for writing next generation JavaScript.

🗼 A wrapper for Babel's parser used for ESLint (renamed to @babel/eslint-parser)

React-specific linting rules for ESLint