ReCalc Sender is a browser extension designed for Chrome that enhances your WhatsApp Web experience by allowing users to create and manage messaging campaigns efficiently. This free tool enables users to load authorized recipients, customize messages, and monitor the progress of their campaigns through an intuitive dashboard. It also features automatic draft saving to prevent data loss when closing the panel unintentionally.

Key functionalities include the ability to track the status of each recipient—whether messages are sent, failed, or queued—as well as the capability to export results in CSV format. Users can adjust the sending pace, set pauses, and manage variations between messages. While the tool provides insights into campaign performance, it is essential to use it responsibly, ensuring compliance with WhatsApp’s policies and applicable regulations.