Streak CRM for Gmail is a Chrome extension that allows users to manage sales and customer relationships directly within their Gmail inbox. It eliminates the need to switch between different tools by integrating seamlessly with Gmail and Google Apps. The extension is highly customizable, making it suitable for various purposes such as sales, recruiting, customer support, project management, and fundraising. Streak also promotes collaboration by enabling teams to share data and easily manage permission levels. Additionally, it offers a range of email power tools, such as snippets, mail merge, send later, and email tracking, to enhance productivity and efficiency.