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Top 169 polyfill open source projects

Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:
👇💥 JavaScript library for handling Force Touch, 3D Touch, and Pointer Pressure.
Webxr Polyfill
Use the WebXR Device API today, providing fallbacks to native WebVR 1.1 and Cardboard
Poly Flif
📷 A poly-fill for the FLIF image format.
React Native Fetch Blob
This project was started in the cause of solving issue facebook/react-native#854, React Native's lacks of Blob implementation which results into problems when transferring binary data.
Display paginated content in the browser and generate print books using web technology
Tiny library (<200B gzip) for deferring something by a "tick"
XMLHttpRequest.js - Standard-compliant cross-browser XMLHttpRequest object implementation
Share Api Polyfill
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.
Jekyll Spaceship
🚀 A Jekyll plugin to provide powerful supports for table, mathjax, plantuml, mermaid, emoji, video, audio, youtube, vimeo, dailymotion, soundcloud, spotify, etc.
Datalist Polyfill
Minimal and dependency-free vanilla JavaScript polyfill for the awesome datalist-functionality
Polyfill Intl Icu
This component provides a collection of functions/classes using the symfony/intl package when the Intl extension is not installed.
React Anchor Link Smooth Scroll
React component for anchor links using the smooth scroll polyfill.
🎚 HTML5 input range slider element polyfill
Dialog Polyfill
Polyfill for the HTML dialog element
Object Fit Images
🗻 Polyfill object-fit/object-position on <img>: IE9, IE10, IE11, Edge, Safari, ...
Webp Hero
browser polyfill for the webp image format
Iphone Inline Video
📱 Make videos playable inline on the iPhone (prevents automatic fullscreen)
Polyfill Php73
This component provides functions unavailable in releases prior to PHP 7.3.
Variable font inspector
Polyfill for Navigator.sendBeacon()
Imagecapture Polyfill
MediaStream ImageCapture polyfill. Take photos from the browser as easy as .takePhoto().then(processPhoto)
React Af
Allows you to code using certain features today! Perfect for component library maintainers.
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 wi…
Kv Storage Polyfill
A polyfill for the kv-storage built-in module.
A polyfill for document.scrollingElement as defined in the CSSOM specification.
Ts Polyfill
Runtime polyfills for TypeScript libs, powered by core-js! 🔋 🔩
Touch Action
Disable 300ms delay on mobile using CSS touch-action or asynchronously download FastClick as polyfill
EQCSS is a CSS Reprocessor that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
Fixed Sticky
DEPRECATED: A position: sticky polyfill that works with filamentgroup/fixed-fixed for a safer position:fixed fallback.
Backporting .NET and more: LINQ expressions in .net 2.0 - nuget Theraot.Core available.
Browser Shims
Browser and JS shims used by Airbnb.
Polyfill Php56
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.
Polyfill Php55
This component provides functions unavailable in releases prior to PHP 5.5.
Polyfill Util
This component provides binary-safe string functions, using the mbstring extension when available.
React Suspense Polyfill
Polyfill for the React Suspense API 😮
Webcrypto Liner
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 implements newer Ruby features into older versions.
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Webvr Polyfill
Use WebVR today, without requiring a special browser build.
Proposal Array Unique
ECMAScript proposal for Deduplicating method of Array
Match Media
Universal polyfill for match media API using Expo APIs on mobile
Date Time Format Timezone
Surgically polyfills timezone support in Intl.DateTimeFormat API
Polyfill Php54
This component provides functions unavailable in releases prior to PHP 5.4.
Webpack Polyfill Injector
Webpack plugin to automatically inject polyfills into your bundle without affecting modern browsers.
Scroll Behavior Polyfill
A polyfill for the 'scroll-behavior' CSS-property
Css Vars Ponyfill
Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers
Document Register Element
A stand-alone working lightweight version of the W3C Custom Elements specification
Patterns Library
AXA CH UI components library. Please share, comment, create issues and work with us!
Bootstrap Ie11
Internet Explorer 11 compatibility solution for Bootstrap 5
1-60 of 169 polyfill projects