RFC4122 (v1, v4, and v5) UUIDs

Brand checking of React Elements.

babel's modular runtime helpers

Lodash modular utilities.

HTTP server cookie parsing and serialization

Standard library

Runtime type checking for React props and similar objects.

Cooperative scheduler for the browser environment.

React is a JavaScript library for building user interfaces.

React package for working with the DOM.

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

emotion's memoize utility

invariant

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

implementation of crypto for the browser

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

Manage session history with JavaScript

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

Like lodash isEqualWith but for shallow equal.

A custom build of Stylis

utilities for encryption and hashing

character encoding utilities

Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress

Tiny 200b functional Event Emitter / pubsub.

Create components whose prop changes map to a global side effect

A document head manager for React

Universal cookies for JavaScript

Polyfills for legacy browsers

Blazing fast modern site generator for React

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

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

Stand alone shallowCompare for use in libraries that support shouldComponentUpdate

native js function for hashing messages with SHA-1

Gatsby's fork to modernize reach-router

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

Device detection (phone, tablet, desktop, mobile grade, os, versions)

modern domready

Gatsby plugin to add google tagmanager onto a site