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  

jekyll-spaceship

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

69   651   651  

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  

pagedjs

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

53   576   576  

bootstrap-ie7

Bootstrap 3 CSS for IE7

200   575   575  

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  

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

43   282   282  

react-native-url-polyfill

🔗A lightweight and trustworthy URL polyfill for React Native.

19   280   280  

urlpattern-polyfill

URLPattern polyfill

32   276   276  

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  

PHPUnit-Polyfills

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

15   178   178  

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  

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  

ts-polyfill

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

7   143   143  

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