react-test-dummy-module React component
Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
Dynamic accessibility analysis for React using axe-core
Shopify React Router - to simplify the building of Shopify Apps with React Router
syntax highlighting component for react with prismjs or highlightjs ast using inline styles
React package for snapshot testing.
Extends Cypress' cy commands that let you integrate email and SMS testing into your continuous integration process.
HTML and SVG DOM property configs used by React.
Evaluate node require() module content directly
oclif plugin for generating shell completions
Confidently unit and integration test your Next.js API routes/handlers in an isolated Next.js-like environment

Dummy MongoDB Crypt shared library which only implements version helpers
Storybook for React and Vite: Develop, document, and test UI components in isolation
Jest utilities for emotion
TypeScript definitions for react-test-renderer
placeholder text & images for HTML prototyping in modern JS apps
Facebook SDK support for React Native apps.
VTEX IO testing tools
A mock backend for testing React DnD apps
Monitor if a component is inside the viewport, using IntersectionObserver API
Node.js Buffer API, for React Native
A lightweight carousel library with fluid motion and great swipe precision
More powerful alternative to Animated library for React Native.