168 Open source projects that are alternatives of or similar to Polyfill

Polyfill for the Encoding Living Standard's API

Polyfills the ResizeObserver API.

Modern DOM functionalities for every browser

This component provides a partial, native PHP implementation of the Grapheme functions from the Intl extension.

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

This polyfill is deprecated. Use the symfony/polyfill-php72 package instead.

CSS Custom Paint / Paint Worklet polyfill with special browser optimizations.

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

Backwards compatibility polyfill for React class components

This component provides functions unavailable in releases prior to PHP 8.0.

A polyfill for native ES6 Promises as close as possible (no extensions) to the strict spec definitions.

Promise packages, patterns, chat, and tutorials

Proxy object polyfill

Polyfill for the proposed React context API

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

Automatic polyfill service.

Javascript polyfills as a service. Java implementation.

Make an image grayscale in all browsers

Surgically polyfills timezone support in Intl.DateTimeFormat API

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

A trivial but working polyfill for PHP 7.3 is_countable function. Supports PHP versions >= 5.3

NodeJS module to create polyfill bundles tailored to individual user-agents.

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

Fast and lightweight dependency-free vanilla JavaScript polyfill for native lazy loading / the awesome loading='lazy'-attribute.

CSS variables (Custom Properties) polyfill for IE11

Capture form validation back from the browser

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

ECMAScript 5 Polyfill for IE-8

A window.fetch JavaScript polyfill.

A polyfill for the 'scroll-behavior' CSS-property

StickyState is a high performant module making native position:sticky statefull and polyfilling the missing sticky browser feature

🦄 Like polyfill but with pony pureness

JSBI is a pure-JavaScript implementation of the official ECMAScript BigInt proposal.

Universal polyfill for match media API using Expo APIs on mobile

This component provides apcu_* functions and the APCUIterator class to users of the legacy APC extension.

📡 BroadcastChannel to send data between different browser-tabs or nodejs-processes 📡

Bootstrap 3 CSS for IE7

Windows 10 Web Bluetooth Polyfill

🐕 Bare minimum 500b fetch polyfill.

Make JSONP request like window.fetch

Toolchain for WebAssembly

PHP polyfills

🍩 1kb minimally viable DOM Document implementation

This component provides a fallback implementation for the Normalizer class provided by the Intl extension.

A Javascript library for working with native objects.

AXA CH UI components library. Please share, comment, create issues and work with us!

A browser API to prevent DOM-Based Cross Site Scripting in modern web applications.

Element.scrollIntoView ponyfills for things like "if-needed" and "smooth"

AVIF polyfill for the browser

This component provides functions unavailable in releases prior to PHP 5.4.

A pure JS in-memory implementation of the IndexedDB API

A docker sidecar container to forward all traffic to local docker host or any other host

CSS3 Media Queries Shim

Internet Explorer 11 compatibility solution for Bootstrap 5

Simple polyfill for URLSearchParams standard

Use WebVR today, without requiring a special browser build.

ECMAScript proposal for Deduplicating method of Array

Webpack plugin to automatically inject polyfills into your bundle without affecting modern browsers.

Transforming HTML standards of the future into JavaScript standards of the past

📋 Simple copying on the web, with maximum browser compatibility.