Legacy Browser Support

unfetchJavaScript

A minimal 500-byte fetch polyfill for environments lacking native fetch support.

FlexibilityJavaScript

A JavaScript polyfill that enables Flexbox layout support in older browsers like IE8-10.

HeadJSJavaScript

A JavaScript library for responsive design, feature detection, and asynchronous resource loading with cross-browser compatibility.

rangeslider.jsJavaScript

A simple, small, and fast jQuery polyfill for the HTML5 input range slider element.

css-vars-ponyfillJavaScript

A ponyfill that provides client-side support for CSS custom properties (CSS variables) in legacy and modern browsers.

ES6 shimJavaScript

A collection of JavaScript polyfills and shims for web platform features, enabling future-looking code across browsers.

@webcomponents/custom-elementsHTML

A suite of JavaScript polyfills that implement Web Components APIs for browsers lacking native support.

FlexieJavaScript

A JavaScript polyfill enabling cross-browser support for the 2009 CSS3 Flexible Box Model specification.

json3JavaScript

A JSON polyfill for older JavaScript platforms, providing spec-compliant parse and stringify functions.

GraphicsJSJavaScript

A lightweight JavaScript graphics library for drawing interactive SVG/VML graphics with an intuitive API.

Placeholders.jsJavaScript

A JavaScript polyfill that adds HTML5 placeholder attribute support to older browsers.

gulp-iconfontTypeScript

A Gulp plugin that generates icon font files (TTF, EOT, WOFF, WOFF2, SVG) from multiple SVG icons.

trifleJSJavaScript

A headless Internet Explorer browser with a PhantomJS-compatible JavaScript API for automation and testing.

remountJavaScript

Mount React components as custom elements to use them anywhere in HTML, including non-SPA apps and other frameworks.

console.log-wrapperJavaScript

A cross-browser console.log wrapper that ensures safe, structured logging even in legacy browsers without native console support.

Polyfill.jsJavaScript

A library that simplifies creating CSS polyfills by handling CSS parsing, media queries, and rule matching boilerplate.

webcrypto-shimJavaScript

A Web Cryptography API shim that provides consistent crypto functionality for legacy browsers like IE11 and Safari 8-10.

Blazor.PolyfillHTML

A polyfill library enabling Blazor Server applications to run on Internet Explorer 11 and Edge Legacy browsers.

String.prototype.includesJavaScript

A robust and optimized ES3-compatible polyfill for the ECMAScript 6 String.prototype.includes method.