Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints 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

Runtime library for TypeScript helper functions

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

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

Implementation of Function.prototype.bind

Promise based HTTP client for the browser and node.js

string representations of objects in node and the browser

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

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

ECMAScript spec abstract operations.

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

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

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

ES6 spec-compliant RegExp.prototype.flags shim.

Standard library

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

ES spec-like internal slots

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

Node.js's util module for all engines

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

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

Object.prototype.hasOwnProperty.call shortcut

Cooperative scheduler for the browser environment.

Runtime type checking for React props and similar objects.

React is a JavaScript library for building user interfaces.

React package for working with the DOM.

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

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

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

Spec-compliant polyfill for String.prototype.matchAll

Scanner and parser for JSON with comments.

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

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

A simple utility for conditionally joining classNames together

A Query Language and Runtime which can target any service.

serialization utils for emotion

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

A memoization library which only remembers the latest invocation

emotion's stylesheet

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

Lodash exported as ES modules.

A simple, lightweight JavaScript API for handling cookies

Like lodash isEqualWith but for shallow equal.

requestAnimationFrame polyfill for node and the browser

A lightweight toolset for writing styles in Javascript.

A JavaScript template literal tag that parses GraphQL queries

Backwards compatibility polyfill for React class components

A polyfill for the Resize Observer API

Check if something is a promise

Bare minimum fetch polyfill in 500 bytes

A Select control built with and for ReactJS

A custom build of Stylis

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

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

Structural equality checking for JavaScript values

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

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

Composable reactive caching with efficient invalidation.

A fully-featured caching GraphQL client.

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

Data-Driven Documents

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

Functional programming in TypeScript

String convertions

Generate media query string from JSON or javascript object

Auto-resizing Input Component for React

Datadog browser core utilities.

React charts

Finite State Machines and Statecharts for the Modern Web.

Accessible modal dialog component for React.JS

An enterprise-class UI design language and React components implementation

Dynamic script loading for browser

Bootstrap 5 components built with React

Awesome Media Queries in JavaScript

React port of slick carousel

A WebGL interactive maps library

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.

Event manager.

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

A JavaScript plugin for entering and validating international telephone numbers

React Google Analytics Module

React component for Feather icons

Rails UJS for the react-rails gem

A customizable countdown component for React.

Polyfill for the dialog element

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

A performant and comprehensive React sticky component

Simple, responsive charts

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