A window.fetch JavaScript polyfill.

Standard Library

History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it will revert back to using the old onhashchange functionality.

PHP 5.x support for random_bytes() and random_int()

This component provides a partial, native PHP implementation for the Mbstring extension.

Automatic polyfill service.

🐕 Bare minimum 500b fetch polyfill.

A Javascript library for working with native objects.

This component provides a partial, native PHP implementation for the Ctype extension.

This component provides features unavailable in releases prior to PHP 7.0.

Promise packages, patterns, chat, and tutorials

👇💥 JavaScript library for handling Force Touch, 3D Touch, and Pointer Pressure.

A project committed to making file access and data transfer easier, efficient for React Native developers.

Polyfill for CSS `position: sticky`

🎚 HTML5 input range slider element polyfill

jQuery contextMenu plugin & polyfill

This component provides a collection of functions/classes using the symfony/intl package when the Intl extension is not installed.

Polyfill for the HTML dialog element

🗻 Polyfill object-fit/object-position on <img>: IE9, IE10, IE11, Edge, Safari, ...

📱 Make videos playable inline on the iPhone (prevents automatic fullscreen)

This component provides functions unavailable in releases prior to PHP 7.3.

DEPRECATED: A position: sticky polyfill that works with filamentgroup/fixed-fixed for a safer position:fixed fallback.

EQCSS is a CSS Reprocessor that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up

This component provides functions unavailable in releases prior to PHP 5.6.

This component provides binary-safe string functions, using the mbstring extension when available.

A polyfill for the Resize Observer API

Use WebVR today, without requiring a special browser build.

A stand-alone working lightweight version of the W3C Custom Elements specification

Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers