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

Lightweight debugging utility for Node.js and the browser

Tiny millisecond conversion utility

Runtime library for TypeScript helper functions

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

Brand checking of React Elements.

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

Standard library

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

string representations of objects in node and the browser

Promise based HTTP client for the browser and node.js

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

ECMAScript spec abstract operations.

Object.prototype.hasOwnProperty.call shortcut

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

Implementation of Function.prototype.bind

Node.js's util module for all engines

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

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

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

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

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

ES6 spec-compliant RegExp.prototype.flags shim.

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

ES spec-like internal slots

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

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

Runtime type checking for React props and similar objects.

Cooperative scheduler for the browser environment.

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

React is a JavaScript library for building user interfaces.

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

React package for working with the DOM.

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

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

Spec-compliant polyfill for String.prototype.matchAll

A simple utility for conditionally joining classNames together

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

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

serialization utils for emotion

A Query Language and Runtime which can target any service.

Scanner and parser for JSON with comments.

emotion's stylesheet

A memoization library which only remembers the latest invocation

Like lodash isEqualWith but for shallow equal.

Lodash exported as ES modules.

Backwards compatibility polyfill for React class components

requestAnimationFrame polyfill for node and the browser

Check if something is a promise

A custom build of Stylis

Bare minimum fetch polyfill in 500 bytes

A lightweight toolset for writing styles in Javascript.

A simple, lightweight JavaScript API for handling cookies

A JavaScript template literal tag that parses GraphQL queries

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

A Select control built with and for ReactJS

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.

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

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

Data-Driven Documents

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

Generate media query string from JSON or javascript object

String convertions

Accessible modal dialog component for React.JS

Bootstrap 5 components built with React

Datadog browser core utilities.

Functional programming in TypeScript

Finite State Machines and Statecharts for the Modern Web.

React charts

Dynamic script loading for browser

Awesome Media Queries in JavaScript

An enterprise-class UI design language and React components implementation

React port of slick carousel

A WebGL interactive maps library

An application architecture based on a unidirectional data flow

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)

React Google Analytics Module

Error tracking and logging from JS to Rollbar

Event manager.

A JavaScript plugin for entering and validating international telephone numbers

React component for Feather icons

A customizable countdown component for React.

Rails UJS for the react-rails gem

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

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

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