Mais Leads CRM is a free Chrome extension designed to enhance the user experience of WhatsApp Web by providing advanced customer relationship management (CRM) features. This tool allows users to organize chats effectively and streamline their business communications. Key functionalities include bulk messaging, customizable tabs for easy access to important contacts, and a Kanban view for managing leads.

Additionally, Mais Leads CRM offers the ability to send messages to unsaved numbers, personalized notes for each contact, and reminders for follow-ups. Users can schedule meetings through Google Calendar, set simple reminders with notifications, and utilize a bank of quick responses for efficient communication. The extension supports multiple languages and has passed a security audit by Google Chrome, ensuring user data remains secure as all operations are conducted locally on the user's computer.