Comunidade ZDG Free is a Chrome extension developed by Pedrinho da Nasa that allows users to send automatic and mass messages through WhatsApp Web. This extension is specifically designed to work when the WhatsApp Web tab is active in the browser.

With Comunidade ZDG Free, users can enjoy unlimited message sending and activation. It provides the convenience of sending not only text messages but also images, videos, documents, and files. Users can also set the desired time for message delivery, ensuring that messages are sent at the most optimal times.

The extension also offers the option to import contacts via CSV, making it easy to send messages to multiple contacts in one go. Additionally, users can personalize their messages by including variables.

Please note that Comunidade ZDG Free is not endorsed or certified by WhatsApp Inc., as it is an unofficial extension.