Polyfill

A lightweight ponyfill for Element.scrollIntoView that implements the CSS Working Group spec, enabling smooth scrolling with 'if-needed' scroll mode...

A BroadcastChannel library that enables cross-tab and cross-process communication in browsers and Node.js, with support for leader election. It...

dialog-polyfill.js provides a standards-compliant polyfill for the HTML `<dialog>` element and `<form method="dialog">`, enabling modal and non-modal...

adapter.js is a WebRTC compatibility shim that insulates applications from specification changes and behavioral differences across browsers, allowing...

core-js is a modular standard library for JavaScript that provides polyfills for ECMAScript features up to 2025, including promises, symbols,...

This Symfony polyfill provides a native PHP implementation of the Intl extension's grapheme functions (grapheme_strlen, grapheme_strpos,...

Symfony Polyfill provides PHP compatibility layers and backports for features from newer PHP versions (7.2–8.2+), extensions, and functions, enabling...

docker-host is a Docker sidecar container that forwards TCP and UDP traffic from containers to the Docker host or arbitrary destinations. It solves...

This Symfony component provides backward-compatible implementations of PHP 8.0+ features for applications running on older PHP versions. It backports...

Symfony Polyfill for PHP 7.3 provides backported implementations of five PHP 7.3+ core functions (`array_key_first`, `array_key_last`, `hrtime`,...

This Symfony component provides `ctype_*` functions for PHP environments that lack the native ctype extension, ensuring compatibility across...

This Symfony component provides a native PHP implementation of the iconv character encoding conversion functions, serving as a fallback when the...

This package provides fallback implementations of PHP's Intl extension for environments where it is not installed, covering core ICU-related...

This Symfony component provides a fallback implementation of PHP's Normalizer class for environments where the Intl extension is unavailable. It...

Symfony Polyfill / Util provides PHP utilities for ensuring code portability across different PHP versions and environments. It is part of the larger...

This Symfony polyfill provides PHP implementations of `idn_to_ascii` and `idn_to_utf8` functions for environments where the Intl extension is not...

es5-shim provides ECMAScript 5 compatibility shims and polyfills for legacy JavaScript engines, enabling ES5 code to run on older platforms. It is a...

Symfony Polyfill for Mbstring provides a native PHP implementation of the Mbstring extension, enabling multibyte string handling on systems where the...

A PHP polyfill library that provides cryptographically secure random_bytes() and random_int() functions for PHP 5.x versions that lack native...