Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent data. Supports browser & node.js environment

Markdown-it - modern pluggable markdown parser.

Parse and display moments in any timezone.

i18next internationalization framework

Runtime library for TypeScript helper functions

Lightweight debugging utility for Node.js and the browser

Tiny millisecond conversion utility

Brand checking of React Elements.

Browser-friendly inheritance fully compatible with standard node.js inherits()

A library to create readable "multipart/form-data" streams. Can be used to submit forms and file uploads to other web applications.

babel's modular runtime helpers

Promise based HTTP client for the browser and node.js

Get and robustly cache all JS language-level intrinsics at first require time

Determine if the JS environment has Symbol support. Supports spec, or shams.

string representations of objects in node and the browser

Object.prototype.hasOwnProperty.call shortcut

Implementation of Function.prototype.bind

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

Standard library

ECMAScript spec abstract operations.

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Store information about any JS value in a side channel. Uses WeakMap if available.

Node.js's util module for all engines

An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

ES6 spec-compliant RegExp.prototype.flags shim.

Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

ES spec-like internal slots

ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

EventEmitter3 focuses on performance while maintaining a Node.js AND browser compatible interface.

Runtime type checking for React props and similar objects.

Cooperative scheduler for the browser environment.

Implements performance.now (based on process.hrtime).

React is a JavaScript library for building user interfaces.

The lodash method `_.debounce` exported as a module.

React package for working with the DOM.

Returns true if the platform is windows. UMD module, works with node.js, commonjs, browser, AMD, electron, etc.

Copies non-react specific statics from a child component to a parent component

Spec-compliant polyfill for String.prototype.matchAll

An object of css properties that don't accept values with units

A simple utility for conditionally joining classNames together

ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.

Scanner and parser for JSON with comments.

serialization utils for emotion

emotion's stylesheet

A Query Language and Runtime which can target any service.

A memoization library which only remembers the latest invocation

Test whether an object looks like a promises-a+ promise

Lodash exported as ES modules.

Like lodash isEqualWith but for shallow equal.

Backwards compatibility polyfill for React class components

A simple, lightweight JavaScript API for handling cookies

requestAnimationFrame polyfill for node and the browser

A custom build of Stylis

A Select control built with and for ReactJS

A lightweight toolset for writing styles in Javascript.

Bare minimum fetch polyfill in 500 bytes

A JavaScript template literal tag that parses GraphQL queries

Check if something is a promise

A polyfill for the Resize Observer API

Thin wrapper around zen-observable and @types/zen-observable, to support ESM exports as well as CommonJS exports

Structural equality checking for JavaScript values

Manage contextual information needed by (a)synchronous tasks without explicitly passing objects around

Auto-resizing Input Component for React

Composable reactive caching with efficient invalidation.

https://en.wikipedia.org/wiki/Trie

A tiny (194B) utility for safely writing deep Object values~!

A fully-featured caching GraphQL client.

JavaScript implementation of the "accept" attribute for HTML5 <input type="file">

React's ExecutionEnvironment module extracted for use in other packages & components

Data-Driven Documents

Bootstrap 5 components built with React

Functional programming in TypeScript

Generate media query string from JSON or javascript object

String convertions

Datadog browser core utilities.

Accessible modal dialog component for React.JS

Finite State Machines and Statecharts for the Modern Web.

React charts

An enterprise-class UI design language and React components implementation

Dynamic script loading for browser

Awesome Media Queries in JavaScript

A WebGL interactive maps library

React port of slick carousel

Enables body scroll locking (for iOS Mobile and Tablet, Android, desktop Safari/Chrome/Firefox) without breaking scrolling of a target element (eg. modal/lightbox/flyouts/nav-menus)

An application architecture based on a unidirectional data flow

Effortlessly track and debug errors in your JavaScript applications with Rollbar. This package includes advanced error tracking features and an intuitive interface to help you identify and fix issues more quickly.

React Google Analytics Module

Event manager.

A JavaScript plugin for entering and validating international telephone numbers

React component for Feather icons

Rails UJS for the react-rails gem

InstantSearch.js is a JavaScript library for building performant and instant search experiences with Algolia.

A customizable countdown component for React.

Effortless animation between DOM changes (eg. list reordering) using the FLIP technique.

Polyfill for the dialog element

Simple, responsive charts

A performant and comprehensive React sticky component

Compiles a function to compute the plural forms index for a given value

A simple and fast API to monitor DOM elements as you scroll