Polyfill library for the esdown compiler
ES6+ to ES5 compiler
Web Streams, based on the WHATWG spec reference implementation
Babel helper to create your own polyfill provider
A Babel plugin to inject imports to regenerator-runtime
A Babel plugin to inject imports to core-js@2 polyfills
Polyfill for the URLPattern API
A Babel plugin to inject imports to core-js@3 polyfills
A native "Headers" class polyfill.
A polyfill for the internal diagnostics_channel module
Node.js os.homedir polyfill for older versions of node.js.
Lightweight promise polyfill. A+ compliant
Bare minimum fetch polyfill in 500 bytes
A window.fetch polyfill.
A lightweight and trustworthy URL polyfill for React Native
A robust & optimized `String.prototype.includes` polyfill, based on the ECMAScript 6 specification.
A polyfill for the Resize Observer API
Polyfill for Temporal (https://github.com/tc39/proposal-temporal), an ECMA TC39 Stage 3 proposal
Polyfills for various browsers including commonly used language features
A lightweight polyfill for Temporal, successor to the JavaScript Date object
Fast polyfill for TextEncoder and TextDecoder, only supports utf-8
Polyfill/ponyfill for the AbortController DOM API + optional patching of fetch (stub that calls catch, doesn't actually abort request).
A lightweight polyfill library for Promise-based WebExtension APIs in Chrome.
An EventTarget Polyfill