Salesly is a free Chrome extension designed to optimize communication via WhatsApp Web. It serves as a comprehensive CRM tool that enhances customer interaction, making it easier to manage and organize conversations. Key features include bulk contact import from CSV files, mass messaging capabilities, customizable tabs for sorting contacts, and a visual Kanban board for conversation management. Users can also create notes and reminders for contacts, schedule Google Calendar meetings, and utilize predefined responses for quick replies.

One of the standout features is the 'Chamar a atenção' function, which allows users to draw a lead's attention with a simple button press. Salesly ensures user privacy by operating solely on the user's computer, without utilizing any databases. It has passed Google Chrome's security audit, making it a reliable choice for businesses looking to streamline their WhatsApp communications.