Most popular polyfill repositories and open source projects

webassemblyjs

Toolchain for WebAssembly

95   738   738  

native-promise-only

A polyfill for native ES6 Promises as close as possible (no extensions...

78   720   720  

css-paint-polyfill

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

36   710   710  

text-encoding

Polyfill for the Encoding Living Standard's API

280   702   702  

create-react-context

Polyfill for the proposed React context API

84   694   694  

sticky-state

StickyState is a high performant module making native position:sticky...

31   686   686  

undom

🍩 1kb minimally viable DOM Document implementation

37   654   654  

avif.js

:shipit: AVIF polyfill for the browser

28   640   640  

polyfill-apcu

This component provides apcu_* functions and the APCUIterator class to...

5   634   634  

polyfill-library

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

142   624   624  

loading-attribute-polyfill

Fast and lightweight dependency-free vanilla JavaScript polyfill for n...

51   596   596  

bootstrap-ie7

Bootstrap 3 CSS for IE7

210   576   576  

pagedjs

Display paginated content in the browser and generate print books usin...

53   576   576  

gray

Make an image grayscale in all browsers

104   565   565  

trusted-types

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

72   543   543  

jekyll-spaceship

🚀 A Jekyll plugin to provide powerful supports for table, mathjax, pla...

66   521   521  

standardized-audio-context

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

35   520   520  

fakeIndexedDB

A pure JS in-memory implementation of the IndexedDB API

62   501   501  

object-fit-polyfill

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

97   500   500  

react-lifecycles-compat

Backwards compatibility polyfill for React class components

34   464   464  

FormData

HTML5 `FormData` polyfill for Browsers and nodejs

100   352   352  

webxr-polyfill

Use the WebXR Device API today, providing fallbacks to native WebVR 1....

86   349   349  

css3-mediaqueries-js

CSS3 Media Queries Shim

204   330   330  

url-polyfill

Polyfill URL and URLSearchParams to match last ES7 specifications

60   317   317  

abortcontroller-polyfill

Polyfill for the AbortController DOM API and abortable fetch (stub tha...

29   315   315  

ie8

some damn DOM fix for this damned browser

26   287   287  

bootstrap-ie8

Bootstrap 4 for IE8 and IE9

45   283   283  

react-native-url-polyfill

🔗A lightweight and trustworthy URL polyfill for React Native.

19   280   280  

share-api-polyfill

A polyfill for the sharing that can be used in the desktop, too, so yo...

45   257   257  

react-native-drawer-layout

A platform-agnostic drawer layout for react-native

63   256   256  

poly-flif

:camera: A poly-fill for the FLIF image format.

11   247   247  

react-anchor-link-smooth-scroll

React component for anchor links using the smooth scroll polyfill.

34   239   239  

webp-hero

browser polyfill for the webp image format

23   237   237  

details-element-polyfill

<details>

26   229   229  

xmlhttprequest

XMLHttpRequest.js - Standard-compliant cross-browser XMLHttpRequest ob...

73   219   219  

datalist-polyfill

Minimal and dependency-free vanilla JavaScript polyfill for the awesom...

47   217   217  

tickedoff

Tiny library (<200B gzip) for deferring something by a "tick"

15   216   216  

samsa

Variable font inspector

21   216   216  

urlpattern-polyfill

URLPattern polyfill

28   201   201  

imagecapture-polyfill

MediaStream ImageCapture polyfill. Take photos from the browser as eas...

31   177   177  

Javascript-Interview-Preparation

A curated collection of javascript interview questions & solutions.

28   176   176  

Nullable

A source code only package which allows you to use .NET's nullable att...

7   168   168  

Navigator.sendBeacon

Polyfill for Navigator.sendBeacon()

27   160   160  

PHPUnit-Polyfills

Set of polyfills for changed PHPUnit functionality to allow for creati...

13   160   160  

Theraot

Backporting .NET and more: LINQ expressions in .net 2.0 - nuget Therao...

29   147   147  

kv-storage-polyfill

A polyfill for the kv-storage built-in module.

9   145   145  

record-tuple-polyfill

A polyfill for the ECMAScript Record and Tuple proposal.

11   143   143  

react-af

Allows you to code using certain React.next features today! Perfect fo...

5   141   141  

polyfill

Set of all Javascript polyfills

38   138   138  

ts-polyfill

Runtime polyfills for TypeScript libs, powered by core-js! :battery: :...

8   137   137