Node.js Streams, a user-land copy of the stream library from Node.js

The string_decoder module from Node core

RFC4122 (v1, v4, and v5) UUIDs

Array#isArray for older browsers

Brand checking of React Elements.

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

A querystring parser that supports nesting and arrays, with a depth limit

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Promisify a callback-style function

Node.js Buffer API, for the browser

babel's modular runtime helpers

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

Implementation of Function.prototype.bind

Express style path to RegExp utility

Promise based HTTP client for the browser and node.js

Robustly `.call.bind()` a function

string representations of objects in node and the browser

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

Reactive Extensions for modern JavaScript

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

ECMAScript spec abstract operations.

Base64 encoding/decoding in pure JS

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

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

Node's event emitter for all engines.

Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

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

Standard library

Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.

Returns an array of Typed Array names that are available in the current environment

deep cloning of objects and arrays

Node.js's util module for all engines

Object.prototype.hasOwnProperty.call shortcut

Cooperative scheduler for the browser environment.

Runtime type checking for React props and similar objects.

Is this an arguments object? It's a harder question than you think.

React is a JavaScript library for building user interfaces.

Like JSON.stringify, but doesn't blow up on circular refs.

Determine if a function is a native generator function.

Immutable Data Collections

minimalistic-assert ===

ES2015-compliant shim for Object.is - differentiates between -0 and +0

A tiny (239B) utility for constructing className strings conditionally.

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

the path module from node core for browsers

Bare bones Promises/A+ implementation

The assert module from Node.js, for the browser.

Safely and quickly serialize JavaScript objects

A function to check whether a prop is valid for HTML and SVG elements

Streamable SHA hashes in pure javascript

A window.fetch polyfill.

A tiny invariant function

ASN.1 encoder and decoder

abstract base class for hash-streams

EC cryptography

Various hash functions that could be run by both browser and node

Declarative routing for React

A basic but performant promise implementation

Deterministic random bit generator (hmac)

DES implementation

node style md5 on pure JavaScript

This library provides the functionality of PBKDF2 with the ability to use any supported hashing algorithm returned from crypto.getHashes()

utility library for parsing asn1 files for use with browserify-sign.

abstract base class for crypto-streams

adds node crypto signing for browsers

aes, for browserify

The insecure key derivation algorithm from OpenSSL

RSA for browserify

createECDH but browserifiable

browserify version of publicEncrypt & privateDecrypt

pure js diffie-hellman

browserify-des ===

Miller Rabin algorithm for primality test

random fill from browserify stand alone

Like lodash isEqualWith but for shallow equal.

Manage session history with JavaScript

deterministic JSON.stringify() with custom sorting to get deterministic hashes from stringified results

JSON without touching any globals

A lightweight toolset for writing styles in Javascript.

Check whether a request can be retried based on the `error.code`

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

Check if something is a promise

CSS for the <Component> Age. Style components your way with speed, strong typing, and flexibility.

Utility functions for React components.

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

A React hook that allows you to use a ResizeObserver to measure an element's size.

Angular - directives and services for creating forms

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

React Hook Form validation resolvers: Yup, Joi, Superstruct, Zod, Vest, Class Validator, io-ts, Nope, computed-types, TypeBox, arktype and Typanion

foreach component + npm package

ECMAScript 2015 (ES6) Object.assign polyfill and ponyfill

Functional programming in TypeScript

React draggable component

Storybook framework-agnostic API

The Cloud Firestore component of the Firebase JS SDK.

Finite State Machines and Statecharts for the Modern Web.

The animator's toolbox

LaunchDarkly SDK for JavaScript

Bytes utility functions for ethers.

Auth0 SDK for Single Page Applications using Authorization Code Grant Flow with PKCE

A beautiful, responsive, customizable and accessible (WAI-ARIA) replacement for JavaScript's popup boxes, supported fork of sweetalert

React Native for Web

🏁 High performance subscription-based form state management for React

With more than 85 components, over 45 available plugins, several directives, and 1000+ icons, BootstrapVue provides one of the most comprehensive implementations of the Bootstrap v4 component and grid system available for Vue.js v2.6, complete with extens

A framework for building GraphQL-driven React applications.

Tiny hashing module that uses the native crypto API in Node.js and the browser

Toolkit for building accessible rich web apps with React

Eric Meyer's Reset CSS for styled-components

A library to edit lottie-web animations dynamically