Runtime library for TypeScript helper functions

Brand checking of React Elements.

Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`

babel's modular runtime helpers

Lodash modular utilities.

Standard library

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.

emotion's memoize utility

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

invariant

the path module from node core for browsers

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

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

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

a few common utility template tags for ES2015

A window.fetch polyfill.

Positioning library for floating elements: tooltips, popovers, dropdowns, and more

Declarative routing for React

Lodash exported as ES modules.

Fastest deep equal comparison for React. Great for React.memo & shouldComponentUpdate. Also really fast general-purpose deep comparison.

A lightweight library that provides tools for organizing asynchronous code

A mirror of Facebook's Warning

A simple, lightweight JavaScript API for handling cookies

Like lodash isEqualWith but for shallow equal.

The same useRef, but with callback

Tiny 200b functional Event Emitter / pubsub.

Sidecar code splitting utils

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

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

A custom build of Stylis

Synchronous Promise-like prototype to use in testing where you would have used an ES6 Promise

A collection of implementation for ECMAScript abstract operations

Intl.LocaleMatcher ponyfill

Formats ICU Message strings with number, date, plural, and select placeholders to create localized messages.

Angular - the core framework

Hand-written ICU MessageFormat parser with compatible output as [`intl-messageformat-parser`](https://www.npmjs.com/package/intl-messageformat-parser) but 6 - 10 times as fast.

A blazing fast deep object copier

Angular - commonly needed directives and services

fork of fast-memoize and support esm

DOM trap for a focus

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

It is a trap! (for a focus)

Create components whose prop changes map to a global side effect

After Effects plugin for exporting animations to SVG + JavaScript or canvas + JavaScript

A document head manager for React

Create components whose prop changes map to a global side effect

Legacy API for creating React components.

Collection of React Hooks

Accessible modal dialog component for React.JS

Internationalize React apps. This library provides React components and an API to format dates, numbers, and strings, including pluralization and handling translations.

Resize event emitter for elements.

Batch processing in JS

Fastest memoization lib that supports N arguments

Internationalize JS apps. This library provides an API to format dates, numbers, and strings, including pluralization and handling translations.

Type definitions and constants for the Contentful rich text field type.

Manage multiple event handlers using few event listeners

Detect device type and render your component according to it

Send logs to Datadog from web browser pages with the browser logs SDK.

A Node.js module for the optimized JavaScript implementation of the MurmurHash algorithms.

[](https://www.npmjs.com/package/contentful-resolve-response)

A scroll component for React.js

A React component to execute a function whenever you scroll to an element.

lil' event emitter

Formats JavaScript dates to relative time strings.

React renderer for the Contentful rich text field type.

Polyfill for Intl.PluralRules

measures element size

Animates a numerical value by counting to it

Polyfills for legacy browsers

A simple utility for creating an object with values equal to its keys. Identical to react/lib/keyMirror

Blazing fast modern site generator for React

UI utilities

An enhanced Link component for Gatsby sites with support for resource prefetching

Gatsby library that helps creating pages

React Router scroll management forked from https://github.com/ytase/react-router-scroll for Gatsby

matches/matchesSelector helper

Relocate resource intensive third-party scripts off of the main thread and into a web worker.

Stand alone shallowCompare for use in libraries that support shouldComponentUpdate

A React component wrapper around CountUp.js

Gatsby's fork to modernize reach-router

JavaScript is all like _You images done yet or what?_

React component for Feather icons

An enhanced script component for Gatsby sites with support for various loading strategies

the brains and guts of a layout library

Cascading grid layout library

Gatsby plugin which adds a manifest.webmanifest to make sites progressive web apps

Range input. Slides in all directions.

Adding responsive images to your site while maintaining high performance scores can be difficult to do manually. The Gatsby Image plugin handles the hard parts of producing images in multiple sizes and formats for you!

Adaptive Cards Javascript library for HTML Clients

A masonry component for React.js

Gatsby plugin to add google tagmanager onto a site

Gatsby plugin to add support for styled components

A rating react component with custom symbols

Gatsby source plugin for building websites using the Contentful CMS as a data source

Detect user's most preferred language within the given language list.

Monadic streams

Reimplements the behavior of layout components in gatsby@1, which was removed in version 2.

Add canonical links to HTML pages Gatsby generates.

A library to edit lottie-web animations dynamically

Easily add Segment JS snippet to your website

React component of botframework-webchat

Header Bidding Management Library