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
A lightweight polyfill for Temporal, successor to the JavaScript Date object
Fast polyfill for TextEncoder and TextDecoder, only supports utf-8
Utils for use with the Signals Proposal: https://github.com/proposal-signals/proposal-signals
Polyfill/ponyfill for the AbortController DOM API + optional patching of fetch (stub that calls catch, doesn't actually abort request).
An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.
A lightweight polyfill library for Promise-based WebExtension APIs in Chrome.
An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
An EventTarget Polyfill
Polyfill of future proposal for `util.parseArgs()`
This is a polyfill for Buffer#indexOf introduced in NodeJS 4.0.
HTML5 `FormData` for Browsers and Node.
@peculiar/x509 is an easy to use TypeScript/Javascript library based on @peculiar/asn1-schema that makes generating X.509 Certificates and Certificate Requests as well as validating certificate chains easy
A polyfill for the Array.prototype.includes method.
A Device Parameter Database for the WebVR Polyfill
ECMAScript 6 Symbol polyfill
Rules dealing with Array functions and methods.
ECMAScript6 WeakMap polyfill
A structuredClone polyfill