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The Top 2,681 Polyfill Open Source Projects

Categories > Libraries > Polyfill
Html2canvas ⭐ 27,415
Screenshots with JavaScript
dependent packages 1,318total releases 42most recent commit 22 days agonpm html2canvas} Downloads
Fetch ⭐ 25,561
A window.fetch JavaScript polyfill.
dependent packages 7,988total releases 33most recent commit a month agonpm whatwg-fetch} Downloads
Autoprefixer ⭐ 20,794
Parse CSS and add vendor prefixes to rules by Can I Use
dependent packages 46,937total releases 235most recent commit 12 days agonpm autoprefixer} Downloads
Core Js ⭐ 17,955
Standard Library
dependent packages 53,676total releases 241most recent commit 11 hours agonpm core-js} Downloads
Respond ⭐ 11,555
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
dependent packages 149total releases 6most recent commit 5 years agonuget Respond} Downloads
History.js ⭐ 10,671
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it will revert back to using the old onhashchange functionality.
most recent commit 3 years ago
Picturefill ⭐ 10,029
A responsive image polyfill for <picture>, srcset, sizes, and more
dependent packages 74total releases 11most recent commit 5 months agonpm picturefill} Downloads
Fp Ts ⭐ 9,023
Functional programming in TypeScript
dependent packages 1,510total releases 213most recent commit 2 days agonpm fp-ts} Downloads
Random_compat ⭐ 8,027
PHP 5.x support for random_bytes() and random_int()
dependent packages 641total releases 61most recent commit 2 months agopackagist paragonie/random_compat} Downloads
Es6 Promise ⭐ 7,290
A polyfill for ES6-style Promises
dependent packages 10,277total releases 34most recent commit 3 months agonpm es6-promise} Downloads
Vanilla Lazyload ⭐ 7,163
LazyLoad is a lightweight, flexible script that speeds up your website by deferring the loading of your below-the-fold images, backgrounds, videos, iframes and scripts to when they will enter the viewport. Written in plain "vanilla" JavaScript, it leverages IntersectionObserver, supports responsive images and enables native lazy loading.
dependent packages 63total releases 134most recent commit 6 days agonpm vanilla-lazyload} Downloads
Es5 Shim ⭐ 7,108
ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines
dependent packages 1,979total releases 95most recent commit 3 months agonpm es5-shim} Downloads
Isomorphic Fetch ⭐ 6,887
Isomorphic WHATWG Fetch API, for Node & Browserify
dependent packages 6,794total releases 23most recent commit a year agonpm isomorphic-fetch} Downloads
Uri.js ⭐ 6,143
Javascript URL mutation library
dependent packages 1,016total releases 28most recent commit 10 months agonpm urijs} Downloads
Polyfill Service ⭐ 5,957
Automatic polyfill service.
dependent packages 29total releases 93most recent commit 14 days agonpm polyfill-service} Downloads
Web Vitals ⭐ 5,747
Essential metrics for a healthy site.
dependent packages 4,581total releases 28most recent commit 4 days agonpm web-vitals} Downloads
Unfetch ⭐ 5,437
🐕 Bare minimum 500b fetch polyfill.
dependent packages 783total releases 7most recent commit a month agonpm isomorphic-unfetch} Downloads
Snabbt.js ⭐ 5,213
Fast animations with javascript and CSS transforms
dependent packages 4total releases 16most recent commit 6 years agonpm snabbt.js} Downloads
Polyfill Php72 ⭐ 4,719
This component provides functions added to PHP 7.2 core.
dependent packages 73total releases 27most recent commit 12 days agopackagist symfony/polyfill-php72} Downloads
Sugar ⭐ 4,461
A Javascript library for working with native objects.
most recent commit a year ago
Myth ⭐ 4,427
A CSS preprocessor that acts like a polyfill for future versions of the spec.
dependent packages 74total releases 31most recent commit 6 years agonpm myth} Downloads
Flexibility ⭐ 4,356
A JavaScript polyfill for Flexbox
dependent packages 26total releases 14most recent commit 3 years agonpm flexibility} Downloads
Fontfaceobserver ⭐ 3,993
Webfont loading. Simple, small, and efficient.
dependent packages 332total releases 57most recent commit 8 months agonpm fontfaceobserver} Downloads
Bilibili Mac Client ⭐ 3,925
An unofficial bilibili client for mac
most recent commit 4 years ago
Smoothscroll ⭐ 3,773
Scroll Behavior polyfill
dependent packages 356total releases 15most recent commit 2 months agonpm smoothscroll-polyfill} Downloads
Intersectionobserver ⭐ 3,583
Intersection Observer
dependent packages 2total releases 1most recent commit 7 months ago
Web Animations Js ⭐ 3,540
JavaScript implementation of the Web Animations API
dependent packages 1,186total releases 12most recent commit 2 years agonpm web-animations-js} Downloads
Promise Fun ⭐ 3,494
Promise packages, patterns, chat, and tutorials
most recent commit 2 years ago
Pthreads ⭐ 3,393
Threading for PHP - Share Nothing, Do Everything :)
most recent commit 3 years ago
Adapter ⭐ 3,335
Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:
dependent packages 537total releases 114most recent commit 2 months agonpm webrtc-adapter} Downloads
Polyfill Php70 ⭐ 3,206
This component provides features unavailable in releases prior to PHP 7.0.
dependent packages 93total releases 28most recent commit 2 years agopackagist symfony/polyfill-php70} Downloads
Eslint Plugin Compat ⭐ 2,908
Check the browser compatibility of your code
dependent packages 1,966total releases 79most recent commit 19 hours agonpm eslint-plugin-compat} Downloads
Pressure ⭐ 2,826
👇💥 JavaScript library for handling Force Touch, 3D Touch, and Pointer Pressure.
dependent packages 15total releases 14most recent commit 7 months agonpm pressure} Downloads
Proposal Temporal ⭐ 2,697
Provides standard objects and functions for working with dates and times.
dependent packages 2total releases 10most recent commit 3 days agonpm proposal-temporal} Downloads
React Native Fetch Blob ⭐ 2,529
A project committed to making file access and data transfer easier, efficient for React Native developers.
dependent packages 69total releases 101most recent commit 3 years agonpm react-native-fetch-blob} Downloads
Polyfill Intl Icu ⭐ 2,456
This component provides a collection of functions/classes using the symfony/intl package when the Intl extension is not installed.
dependent packages 42total releases 34most recent commit 12 days agopackagist symfony/polyfill-intl-icu} Downloads
Matchmedia.js ⭐ 2,360
matchMedia polyfill for testing media queries in JS
dependent packages 57total releases 3most recent commit 2 years agonpm matchmedia-polyfill} Downloads
Polyfill Php73 ⭐ 2,326
This component provides functions unavailable in releases prior to PHP 7.3.
dependent packages 97total releases 23most recent commit 12 days agopackagist symfony/polyfill-php73} Downloads
Oidc Client Js ⭐ 2,306
OpenID Connect (OIDC) and OAuth2 protocol support for browser-based JavaScript applications
dependent packages 240total releases 87most recent commit a year agonpm oidc-client} Downloads
Polyfill ⭐ 2,257
PHP polyfills
dependent packages 27total releases 37most recent commit 3 days agopackagist symfony/polyfill} Downloads
Dialog Polyfill ⭐ 2,222
Polyfill for the HTML dialog element
dependent packages 209total releases 18most recent commit a year agonpm dialog-polyfill} Downloads
Jquery Contextmenu ⭐ 2,188
jQuery contextMenu plugin & polyfill
dependent packages 53total releases 40most recent commit 3 months agonpm jquery-contextmenu} Downloads
Workerize Loader ⭐ 2,185
🏗️ Automatically move a module into a Web Worker (Webpack loader)
dependent packages 75total releases 12most recent commit 8 months agonpm workerize-loader} Downloads
Stickyfill ⭐ 2,176
Polyfill for CSS `position: sticky`
dependent packages 44total releases 7most recent commit 2 years agonpm stickyfilljs} Downloads
Rangeslider.js ⭐ 2,162
🎚 HTML5 input range slider element polyfill
dependent packages 14total releases 26most recent commit 4 months agonpm rangeslider.js} Downloads
Promise Polyfill ⭐ 2,110
Lightweight ES6 Promise polyfill for the browser and node. A+ Compliant
dependent packages 1,492total releases 45most recent commit 18 days agonpm promise-polyfill} Downloads
Vue Beauty ⭐ 2,063
Beautiful UI components build with vue and ant design
dependent packages 9total releases 32most recent commit 3 years agonpm vue-beauty} Downloads
Ext Ds ⭐ 2,049
An extension providing efficient data structures for PHP 7
most recent commit 4 months ago
Webextension Polyfill ⭐ 2,038
A lightweight polyfill library for Promise-based WebExtension APIs in Chrome
dependent packages 84total releases 14most recent commit 22 days agonpm webextension-polyfill} Downloads
Object Fit Images ⭐ 2,023
🗻 Polyfill object-fit/object-position on <img>: IE9, IE10, IE11, Edge, Safari, ...
dependent packages 97total releases 44most recent commit 4 years agonpm object-fit-images} Downloads
Iphone Inline Video ⭐ 2,019
📱 Make videos playable inline on the iPhone (prevents automatic fullscreen)
dependent packages 36total releases 39most recent commit a year agonpm iphone-inline-video} Downloads
Eventsource ⭐ 1,819
a polyfill for http://www.w3.org/TR/eventsource/
dependent packages 285total releases 40most recent commit 6 months agonpm event-source-polyfill} Downloads
Resize Observer Polyfill ⭐ 1,657
A polyfill for the Resize Observer API
dependent packages 2,872total releases 17most recent commit 11 days agonpm resize-observer-polyfill} Downloads
Intl.js ⭐ 1,638
Compatibility implementation of the ECMAScript Internationalization API (ECMA-402) for JavaScript -- UNMAINTAINED
dependent packages 1,251total releases 20most recent commit 3 years agonpm intl} Downloads
Focus Visible ⭐ 1,583
Polyfill for `:focus-visible`
dependent packages 246total releases 13most recent commit 2 months agonpm focus-visible} Downloads
Polyfill Php80 ⭐ 1,499
This component provides functions unavailable in releases prior to PHP 8.0.
dependent packages 196total releases 16most recent commit 12 days agopackagist symfony/polyfill-php80} Downloads
Fixed Sticky ⭐ 1,487
DEPRECATED: A position: sticky polyfill that works with filamentgroup/fixed-fixed for a safer position:fixed fallback.
dependent packages 4total releases 3most recent commit 6 years agonpm fixed-sticky} Downloads
Eqcss ⭐ 1,484
EQCSS is a CSS Reprocessor that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
dependent packages 7total releases 20most recent commit 4 years agonpm eqcss} Downloads
Cross Fetch ⭐ 1,473
Universal WHATWG Fetch API for Node, Browsers and React Native.
dependent packages 1,942total releases 40most recent commit a month agonpm cross-fetch} Downloads
Broadcast Channel ⭐ 1,453
📡 BroadcastChannel to send data between different browser-tabs or nodejs-processes 📡 + LeaderElection over the channels
dependent packages 61total releases 76most recent commit 2 days agonpm broadcast-channel} Downloads
Webshim ⭐ 1,443
[DEPRECATED] Webshims Lib is a modular capability-based polyfill-loading library
dependent packages 5total releases 4most recent commit 6 years agonpm webshim} Downloads
Javascript Canvas To Blob ⭐ 1,420
JavaScript Canvas to Blob is a function to convert canvas elements into Blob objects.
most recent commit a year ago
Angular Cache ⭐ 1,402
angular-cache is a very useful replacement for the Angular 1 $cacheFactory.
dependent packages 26total releases 29most recent commit 6 years agonpm angular-cache} Downloads
Css Vars Ponyfill ⭐ 1,393
Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers
dependent packages 140total releases 59most recent commit 4 months agonpm css-vars-ponyfill} Downloads
Polyfill Php56 ⭐ 1,377
This component provides functions unavailable in releases prior to PHP 5.6.
dependent packages 109total releases 28most recent commit 2 years agopackagist symfony/polyfill-php56} Downloads
Webvr Polyfill ⭐ 1,351
Use WebVR today, without requiring a special browser build.
dependent packages 54total releases 59most recent commit 2 years agonpm webvr-polyfill} Downloads
Polyfill ⭐ 1,335
JavaScript Polyfills, Shims and More
dependent packages 124total releases 25most recent commit a year agonpm js-polyfills} Downloads
Pluralsight Redux Starter ⭐ 1,328
Completed Dev Environment for "Building Applications with React and Redux" on Pluralsight
most recent commit 4 years ago
Form To Google Sheets ⭐ 1,328
Store HTML form submissions in Google Sheets.
most recent commit 2 years ago
Polyfill Intl Grapheme ⭐ 1,327
This component provides a partial, native PHP implementation of the Grapheme functions from the Intl extension.
dependent packages 6total releases 35most recent commit 12 days agopackagist symfony/polyfill-intl-grapheme} Downloads
Box Sizing Polyfill ⭐ 1,201
A CSS box-sizing: border-box polyfill for IE 6/7
most recent commit 7 years ago
Scroll Into View If Needed ⭐ 1,152
Element.scrollIntoView ponyfills for things like "if-needed" and "smooth"
most recent commit 3 days ago
Themes ⭐ 1,134
Themes for Windows Terminal
most recent commit 25 days ago
Document Register Element ⭐ 1,123
A stand-alone working lightweight version of the W3C Custom Elements specification
dependent packages 469total releases 78most recent commit 2 years agonpm document-register-element} Downloads
Css Grid Polyfill ⭐ 1,111
A working implementation of css grids for current browsers.
most recent commit 2 years ago
Proxy Polyfill ⭐ 1,091
Proxy object polyfill
dependent packages 172total releases 11most recent commit a month agonpm proxy-polyfill} Downloads
React Intersection Observer ⭐ 1,071
React component for the Intersection <Observer /> API
dependent packages 59total releases 34most recent commit 2 months agonpm @researchgate/react-intersection-observer} Downloads
Polyfills ⭐ 1,051
Collection of polyfills that I've written
most recent commit 4 years ago
Polyfills ⭐ 1,021
Web Components Polyfills
dependent packages 3,067total releases 67most recent commit 3 days agonpm @webcomponents/webcomponentsjs} Downloads
Object Fit ⭐ 1,000
Polyfill (mostly IE) for CSS object-fit property to fill-in/fit-in images into containers.
dependent packages 8total releases 7most recent commit 7 years agonpm object-fit} Downloads
React Ie8 ⭐ 988
Make your React app work in IE8
total releases 7most recent commit 4 years ago
Docker Host ⭐ 979
A docker sidecar container to forward all traffic to local docker host or any other host
most recent commit 8 days ago
React Loadable Visibility ⭐ 973
A wrapper around react-loadable and @loadable/component to load elements once they are visible on the page.
dependent packages 6total releases 16most recent commit 2 years agonpm react-loadable-visibility} Downloads
Electron Chrome ⭐ 973
most recent commit 2 years ago
Placeholders.js ⭐ 971
A JavaScript polyfill for the HTML5 placeholder attribute
total releases 2most recent commit 6 years ago
Fetch Jsonp ⭐ 969
Make JSONP request like window.fetch
dependent packages 621total releases 16most recent commit 5 months agonpm fetch-jsonp} Downloads
Ponyfill ⭐ 959
🦄 Like polyfill but with pony pureness
most recent commit 2 years ago
Splittable ⭐ 958
Module bundler with support for code splitting, ES6 & CommonJS modules.
dependent packages 2total releases 26most recent commit 5 years agonpm splittable} Downloads
Indexeddbshim ⭐ 938
A polyfill for IndexedDB using WebSql
dependent packages 52total releases 63most recent commit a month agonpm indexeddbshim} Downloads
Ie11customproperties ⭐ 910
CSS variables (Custom Properties) polyfill for IE11
dependent packages 11total releases 27most recent commit 14 days agonpm ie11-custom-properties} Downloads
Overthrow ⭐ 909
A tiny, no-frills, framework-independent, targeted overflow: auto polyfill for use in responsive design.
dependent packages 5total releases 7most recent commit 4 months agonpm fg-overthrow} Downloads
Dom4 ⭐ 895
Modern DOM functionalities for every browser
dependent packages 103total releases 31most recent commit 2 years agonpm dom4} Downloads
React Cool Dimensions ⭐ 883
😎 📏 React hook to measure an element's size and handle responsive components.
dependent packages 8total releases 45most recent commit 2 months agonpm react-cool-dimensions} Downloads
Clipboard Polyfill ⭐ 875
📋 Simple copying on the web, with maximum browser compatibility. (You probably don't need this anymore!)
dependent packages 75total releases 46most recent commit 4 days agonpm clipboard-polyfill} Downloads
Inert ⭐ 860
Polyfill for the inert attribute and property.
dependent packages 48total releases 22most recent commit 2 months agonpm wicg-inert} Downloads
Web Font Loading Recipes ⭐ 850
A bunch of demos for different web font loading strategies. Companion to https://www.zachleat.com/web/comprehensive-webfont Read more: https://www.zachleat.com/web/recipes/
most recent commit 4 years ago
Monocle Ts ⭐ 847
Functional optics: a (partial) porting of Scala monocle
dependent packages 139total releases 55most recent commit 10 months agonpm monocle-ts} Downloads
Resize Observer ⭐ 830
Polyfills the ResizeObserver API.
dependent packages 180total releases 62most recent commit 3 months agonpm @juggle/resize-observer} Downloads
Jwebassembly ⭐ 828
Java bytecode to WebAssembly compiler
total releases 4most recent commit 13 days ago
Reactjs Tmdb App ⭐ 820
Responsive React 'The Movie Database' (TMDb) App
most recent commit 2 years ago
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