Polyfill Packages

Essential Web Styling and Scripting Framework

simple polyfill for requestAnimationFrame for browser and node

A polyfill for the Resize Observer API

Polyfill for CSS `position: sticky`

Polyfill the ECMA-402 Intl API (except collation)

That's a simple to use realization of a smooth scroll for your website. It's especially useful if you have some fixed elements and want to correct the scroll destination.

A vanilla JS promise library to help with your asynchronous todo list!

WeakRef and FinalizationGroup for IE11+

ES2015 Math.acosh() ponyfill

es6 promise polyfill for wechat miniapp

AVIF polyfill for the browser

polyfill to es5, and more function then es5-shim

Polyfills for ECMAScript 2015 Map and Set

FrontCow is a Yeoman generator that initialize your front-end workflow in a minute. FrontCow use the amazing Foundation 5 front-end framework.

A polyfill for Request.prototype.formData on cloudflare workers

Universal JavaScript fetch utility for NodeJS, Browsers and React-Native

jQuery Plugin for Server-Sent Events (SSE) EventSource Polyfill

Simple polyfill for srcset

An ES-spec-compliant (proposed) String.prototype.item shim/polyfill/replacement that works as far down as ES3

Polyfills generator for a full ES2015+ environment support in TypeScript projects