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()

Symfony polyfill for the Mbstring extension

Automatic polyfill service.

ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines

🐕 Bare minimum 500b fetch polyfill.

Promise packages, patterns, chat, and tutorials

Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions

A Javascript library for working with native objects.

Symfony polyfill for ctype functions

Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:

Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions

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

Check the browser compatibility of your code

:point_down::boom: JavaScript library for handling Force Touch, 3D Touch, and Pointer Pressure.

PHP polyfills

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

Symfony polyfill for intl's ICU-related data and classes

Polyfill for the HTML dialog element

Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions

Polyfill for CSS `position: sticky`

jQuery contextMenu plugin & polyfill

🎚 HTML5 input range slider element jQuery polyfill

Symfony polyfill for intl's Normalizer class and related functions

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

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

:satellite: BroadcastChannel to send data between different browser-tabs or nodejs-processes :satellite: + LeaderElection over the channels https://pubkey.github.io/broadcast-channel/

Symfony polyfill for the Iconv extension