WACS is a Chrome extension designed to extract contacts from WhatsApp groups effortlessly. It offers the functionality to export all or unsaved contacts from WhatsApp groups, chat lists, and labels to various file formats such as CSV, TXT, XLSX, or JSON. With WACS, users can seamlessly backup their WhatsApp contacts, including names, numbers, and country information, into neatly organized files. The tool aims to simplify the backup process, providing a convenient way to manage and export WhatsApp contacts hassle-free.

WACS features include exporting all/unsaved contacts from WhatsApp chat lists, labels, and groups, exporting all groups at once, exporting as an Excel file, displaying users' country information, providing easily identifiable filenames, and offering fast and free support. It's important to note that this extension is an unofficial enhancement for WhatsApp Web and is not affiliated with WhatsApp Inc.