168 Open source projects that are alternatives of or similar to Browser Shims

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

Promise packages, patterns, chat, and tutorials

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

A cross-browser wrapper for the Web Audio API which aims to closely follow the standard.

webcrypto-liner is a polyfill that let's down-level User Agents (like IE/Edge) use libraries that depend on WebCrypto. (Keywords: Javascript, WebCrypto, Shim, Polyfill)

Polyfill URL and URLSearchParams to match last ES7 specifications

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

Bootstrap 4 for IE8 and IE9

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

A platform-agnostic drawer layout for react-native

CSS variables (Custom Properties) polyfill for IE11

Workaround for browser bugs in Range.prototype.getClientRects and Range.prototype.getBoundingClientRect.

This component provides functions unavailable in releases prior to PHP 5.5.

Web Streams, based on the WHATWG spec reference implementation

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

An up-to-date Device Parameter Database for the WebVR Polyfill

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

Spec-compliant polyfill for String.prototype.matchAll, in ES2020

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

(A smaller) polyfill for the react context API

Use WebVR today, without requiring a special browser build.

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

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

🖥 A screen.orientation ponyfill

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

Type and Reflection polyfill extension methods. .NET 3.5+ and .NET Standard 1.0+.

Polyfill for the proposed React context API

Object.keys shim

A polyfill for the Resize Observer API

Insert polyfills (such as Promise) for Webpack 2

Polyfill for the Encoding Living Standard's API

A curated collection of javascript interview questions & solutions.

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

Collection of polyfill (backport) and incubator features for Symfony 3

Automatic polyfill service.

This component provides functions unavailable in releases prior to PHP 8.1.

ECMAScript proposal for Deduplicating method of Array

A fetch API polyfill for React Native with text streaming support.

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

ES Proposal spec-compliant shim for Promise.allSettled

Proxy object polyfill

Automatically annotate CSS Grid items with row and column positions, so they are correctly positioned in IE11.

Make an image grayscale in all browsers

A JavaScript implementation of a WebVR 1.1 VRDisplay

Polyfill for the React Suspense API 😮

Implements the `{{on eventName this.someAction}}` element modifier from https://github.com/emberjs/rfcs/blob/master/text/0471-on-modifier.md

Polyfills the ResizeObserver API.

rewrite constructor arguments, call DOMPurify, profit

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

Array.prototype.includes spec-compliant polyfill

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

The bare essentials of std::io for use in no_std. Alloc support is optional.

Surgically polyfills timezone support in Intl.DateTimeFormat API

Backwards compatibility polyfill for React class components

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

A source code only package which allows you to use .NET's nullable attributes in older target frameworks like .NET Standard 2.0 or the "old" .NET Framework.

ES6 Promise polyfill

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

Make JSONP request like window.fetch

AVIF polyfill for the browser