RFC4122 (v1, v4, and v5) UUIDs

Brand checking of React Elements.

babel's modular runtime helpers

HTTP server cookie parsing and serialization

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

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

invariant

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

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

implementation of crypto for the browser

Manage session history with JavaScript

Like lodash isEqualWith but for shallow equal.

A custom build of Stylis

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

utilities for encryption and hashing

character encoding utilities

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

native js function for hashing messages with SHA-1

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

Gatsby's fork to modernize reach-router

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

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

Gatsby plugin to add google tagmanager onto a site

modern domready