Google Data Studio is a free data visualization tool from Google that allows users to connect to data sources, visualize data in dashboards and reports, and share those visualizations. It works by connecting to data sources through connectors, allowing users to generate customizable dashboards and reports from selected datasets. While capable on its own, Google Data Studio is part of Google's larger analytics suite that includes tools like Google Analytics, Google Tag Manager, Google Optimize, and Google Attribution to provide a unified view of customer data and insights.