Tableau is a powerful data visualization tool that enables users to transform raw data into interactive and easy-to-understand visual insights. It helps organizations and individuals analyze large datasets, spot trends, and communicate findings effectively using charts, graphs, dashboards, and reports. Tableau is known for its user-friendly interface, drag-and-drop features, and ability to connect to a variety of data sources, making it a popular choice for data analysts, business intelligence professionals, and decision-makers across industries.