The Top 507 Polyfill Open Source Projects on Github

Awesome Open Source

Awesome Open Source

Combined Topics

Advertising 📦 9

Application Programming Interfaces 📦 120

Applications 📦 181

Artificial Intelligence 📦 72

Blockchain 📦 70

Build Tools 📦 111

Cloud Computing 📦 79

Code Quality 📦 28

Collaboration 📦 30

Command Line Interface 📦 48

Community 📦 81

Companies 📦 60

Compilers 📦 60

Computer Science 📦 74

Configuration Management 📦 39

Content Management 📦 167

Control Flow 📦 197

Data Formats 📦 77

Data Processing 📦 266

Data Storage 📦 132

Economics 📦 60

Frameworks 📦 198

Graphics 📦 103

Hardware 📦 148

Integrated Development Environments 📦 47

Learning Resources 📦 147

Libraries 📦 119

Lists Of Projects 📦 21

Machine Learning 📦 336

Mapping 📦 61

Marketing 📦 15

Mathematics 📦 55

Messaging 📦 97

Networking 📦 304

Operating Systems 📦 84

Operations 📦 120

Package Managers 📦 52

Programming Languages 📦 229

Runtime Environments 📦 96

Science 📦 42

Security 📦 375

Social Media 📦 26

Software Architecture 📦 70

Software Development 📦 68

Software Performance 📦 57

Software Quality 📦 127

Text Editors 📦 45

Text Processing 📦 131

User Interface 📦 310

User Interface Components 📦 465

Version Control 📦 29

Virtualization 📦 68

Web Browsers 📦 38

Web Servers 📦 25

Web User Interface 📦 194

The Top 507 Polyfill Open Source Projects on Github

Categories > Libraries > Polyfill

Fetch ⭐ 24,940

A window.fetch JavaScript polyfill.

Core Js ⭐ 15,285

Standard Library

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.

Random_compat ⭐ 7,888

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

Polyfill Mbstring ⭐ 7,267

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

Es5 Shim ⭐ 7,037

ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines

Polyfill Service ⭐ 5,496

Automatic polyfill service.

Unfetch ⭐ 5,022

🐕 Bare minimum 500b fetch polyfill.

Sugar ⭐ 4,398

A Javascript library for working with native objects.

Polyfill Ctype ⭐ 3,745

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

Promise Fun ⭐ 3,494

Promise packages, patterns, chat, and tutorials

Polyfill Php70 ⭐ 3,206

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

Adapter ⭐ 2,918

Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:

Pressure ⭐ 2,756

👇💥 JavaScript library for handling Force Touch, 3D Touch, and Pointer Pressure.

Eslint Plugin Compat ⭐ 2,716

Lint the browser compatibility of your code

React Native Fetch Blob ⭐ 2,529

A project committed to making file access and data transfer easier, efficient for React Native developers.

Polyfill Intl Icu ⭐ 2,249

This component provides a collection of functions/classes using the symfony/intl package when the Intl extension is not installed.

Stickyfill ⭐ 2,176

Polyfill for CSS `position: sticky`

Rangeslider.js ⭐ 2,139

🎚 HTML5 input range slider element polyfill

Jquery Contextmenu ⭐ 2,136

jQuery contextMenu plugin & polyfill

Dialog Polyfill ⭐ 2,058

Polyfill for the HTML dialog element

Polyfill Php73 ⭐ 2,047

This component provides functions unavailable in releases prior to PHP 7.3.

Object Fit Images ⭐ 2,023

🗻 Polyfill object-fit/object-position on <img>: IE9, IE10, IE11, Edge, Safari, ...

Iphone Inline Video ⭐ 2,004

📱 Make videos playable inline on the iPhone (prevents automatic fullscreen)

Polyfill ⭐ 1,644

Fixed Sticky ⭐ 1,487

DEPRECATED: A position: sticky polyfill that works with filamentgroup/fixed-fixed for a safer position:fixed fallback.

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

Resize Observer Polyfill ⭐ 1,464

A polyfill for the Resize Observer API

Polyfill Php56 ⭐ 1,377

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

Polyfill Util ⭐ 1,363

This component provides binary-safe string functions, using the mbstring extension when available.

Webvr Polyfill ⭐ 1,351

Use WebVR today, without requiring a special browser build.

Polyfill ⭐ 1,335

JavaScript Polyfills, Shims and More

Css Vars Ponyfill ⭐ 1,253

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

Document Register Element ⭐ 1,123

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

Polyfill Php80 ⭐ 1,055

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

Broadcast Channel ⭐ 1,041

📡 BroadcastChannel to send data between different browser-tabs or nodejs-processes 📡 + LeaderElection over the channels

Polyfill Intl Normalizer ⭐ 1,004

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

Ponyfill ⭐ 959

🦄 Like polyfill but with pony pureness

Fetch Jsonp ⭐ 947

Make JSONP request like window.fetch

Proxy Polyfill ⭐ 944

Proxy object polyfill

Scroll Into View If Needed ⭐ 929

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

Modern DOM functionalities for every browser

Polyfill Intl Grapheme ⭐ 846

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

Docker Host ⭐ 827

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

Ie11customproperties ⭐ 813

CSS variables (Custom Properties) polyfill for IE11

Clipboard Polyfill ⭐ 798

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

Url Search Params ⭐ 760

Simple polyfill for URLSearchParams standard

Hyperform ⭐ 733

Capture form validation back from the browser

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

Sticky State ⭐ 690

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

Create React Context ⭐ 689

Polyfill for the proposed React context API

Native Promise Only ⭐ 686

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

Resize Observer ⭐ 652

Polyfills the ResizeObserver API.

Polyfill Apcu ⭐ 630

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

Webassemblyjs ⭐ 610

Toolchain for WebAssembly

Css Paint Polyfill ⭐ 608

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

Bootstrap Ie7 ⭐ 583

Bootstrap 3 CSS for IE7

Text Encoding ⭐ 582

Polyfill for the Encoding Living Standard's API

Make an image grayscale in all browsers

Object Fit Polyfill ⭐ 502

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

🍩 1kb minimally viable DOM Document implementation

Polyfill Library ⭐ 481

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

Webappsec Trusted Types ⭐ 463

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

React Lifecycles Compat ⭐ 462

Backwards compatibility polyfill for React class components

Loading Attribute Polyfill ⭐ 441

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

Avif.js ⭐ 422

AVIF polyfill for the browser

Fakeindexeddb ⭐ 378

A pure JS in-memory implementation of the IndexedDB API

Standardized Audio Context ⭐ 362

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

Css3 Mediaqueries Js ⭐ 336

CSS3 Media Queries Shim

Formdata ⭐ 313

HTML5 `FormData` polyfill for Browsers.

Pagedjs ⭐ 303

Display paginated content in the browser and generate print books using web technology

some damn DOM fix for this damned browser

Jekyll Spaceship ⭐ 295

🚀 A Jekyll plugin to provide powerful supports for table, mathjax, plantuml, mermaid, emoji, video, audio, youtube, vimeo, dailymotion, soundcloud, spotify, etc.

Abortcontroller Polyfill ⭐ 283

Polyfill for the AbortController DOM API and abortable fetch (stub that calls catch, doesn't actually abort request).

Bootstrap Ie8 ⭐ 281

Bootstrap 4 for IE8 and IE9

Url Polyfill ⭐ 277

Polyfill URL and URLSearchParams to match last ES7 specifications

React Native Drawer Layout ⭐ 258

A platform-agnostic drawer layout for react-native

Webxr Polyfill ⭐ 246

Use the WebXR Device API today, providing fallbacks to native WebVR 1.1 and Cardboard

Poly Flif ⭐ 232

📷 A poly-fill for the FLIF image format.

Details Element Polyfill ⭐ 230

Polyfill Php81 ⭐ 225

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

Share Api Polyfill ⭐ 217

A polyfill for the sharing that can be used in desktop too, so your users can shere in their twitter, facebook, messenger, linkedin, sms, e-mail, print, telegram or whatsapp.

Tickedoff ⭐ 214

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

Xmlhttprequest ⭐ 205

XMLHttpRequest.js - Standard-compliant cross-browser XMLHttpRequest object implementation

Datalist Polyfill ⭐ 203

Minimal and dependency-free vanilla JavaScript polyfill for the awesome datalist-functionality

Babel Polyfills ⭐ 200

A set of Babel plugins that enable injecting different polyfills with different strategies in your compiled code.

Variable font inspector

Webp Hero ⭐ 159

browser polyfill for the webp image format

Web Streams Polyfill ⭐ 156

Web Streams, based on the WHATWG spec reference implementation

React Anchor Link Smooth Scroll ⭐ 149

React component for anchor links using the smooth scroll polyfill.

React Af ⭐ 145

Allows you to code using certain React.next features today! Perfect for component library maintainers.

Kv Storage Polyfill ⭐ 138

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

React Native Url Polyfill ⭐ 138

🔗A lightweight and trustworthy URL polyfill for React Native.

Mdn Polyfills ⭐ 135

MDN polyfills - from, forEach, filter, find, findIndex, assign, includes, create, entries, of, repeat, startsWith, endsWith, toggleAttribute, bind, MouseEvent, CustomEvent, padEnd, padStart

Navigator.sendbeacon ⭐ 134

Polyfill for Navigator.sendBeacon()

Imagecapture Polyfill ⭐ 123

MediaStream ImageCapture polyfill. Take photos from the browser as easy as .takePhoto().then(processPhoto)

Theraot ⭐ 121

Backporting .NET and more: LINQ expressions in .net 2.0 - nuget Theraot.Core available.

Touch Action ⭐ 120

Disable 300ms delay on mobile using CSS touch-action or asynchronously download FastClick as polyfill

Document.scrollingelement ⭐ 112

A polyfill for document.scrollingElement as defined in the CSSOM specification.

Nullable ⭐ 110

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.

1-100 of 507 projects

Advertising 📦 9

Application Programming Interfaces 📦 120

Applications 📦 181

Artificial Intelligence 📦 72

Blockchain 📦 70

Build Tools 📦 111

Cloud Computing 📦 79

Code Quality 📦 28

Collaboration 📦 30

Command Line Interface 📦 48

Community 📦 81

Companies 📦 60

Compilers 📦 60

Computer Science 📦 74

Configuration Management 📦 39

Content Management 📦 167

Control Flow 📦 197

Data Formats 📦 77

Data Processing 📦 266

Data Storage 📦 132

Economics 📦 60

Frameworks 📦 198

Graphics 📦 103

Hardware 📦 148

Integrated Development Environments 📦 47

Learning Resources 📦 147

Libraries 📦 119

Lists Of Projects 📦 21

Machine Learning 📦 336

Mapping 📦 61

Marketing 📦 15

Mathematics 📦 55

Messaging 📦 97

Networking 📦 304

Operating Systems 📦 84

Operations 📦 120

Package Managers 📦 52

Programming Languages 📦 229

Runtime Environments 📦 96

Science 📦 42

Security 📦 375

Social Media 📦 26

Software Architecture 📦 70

Software Development 📦 68

Software Performance 📦 57

Software Quality 📦 127

Text Editors 📦 45

Text Processing 📦 131

User Interface 📦 310

User Interface Components 📦 465

Version Control 📦 29

Virtualization 📦 68

Web Browsers 📦 38

Web Servers 📦 25

Web User Interface 📦 194

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