buffer-es6 is a polyfill for the Node.js Buffer API, adapted for modern JavaScript environments, including browsers and older JavaScript engines. It provides a globally accessible Buffer class that mimics the Node.js API, enabling seamless integration of Node.js modules relying on Buffer within browser-based projects without modification. It offers compatibility beyond the latest ECMAScript standards, and addresses the needs of legacy systems offering a reliable solution where native or modern implementations may be absent.