ECMAScript extensions and shims

Array#isArray for older browsers

Node.js Buffer API, for the browser

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

Base64 encoding/decoding in pure JS

Standard library

extend like a boss

A simple utility for conditionally joining classNames together

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

A simple, lightweight JavaScript API for handling cookies

A polyfill for the Resize Observer API

A kickass library to manage your poppers

Logic-less {{mustache}} templates with JavaScript

Returns an array of all tabbable DOM nodes within a containing node.

Cross-browser `CustomEvent` constructor

Microsoft sucks

Modern copy to clipboard. No Flash. Just 2kb

Trap focus within a DOM node.

A polyfill for IntersectionObserver

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)

Polyfill for :focus-visible pseudo-selector

lil' event emitter

measures element size

UI utilities

matches/matchesSelector helper

the brains and guts of a layout library

Cascading grid layout library

A localStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood

JavaScript gallery

A Javascript polyfill for browsers that don't support the object-fit CSS property

deep copy data

A simple, accessible and customizable HTML5, YouTube and Vimeo media player

A modern smooth scrolling library.

Pure Javascript Multilingual OCR

A vanilla JS customisable text input/select box plugin

A responsive image polyfill.

Get the YouTube, Vimeo, Vine, VideoPress, TikTok, Microsoft Stream, Loom or Dailymotion video id from a url or embed string.

Simple autocomplete pure vanilla Javascript library.

Give your page some headroom. Hide your header until you need it