Tableau's main features include a user-friendly drag-and-drop interface, which makes it easy to create interactive visualizations. It also has advanced data blending and integration functionalities, allowing users to combine data from various sources seamlessly. Moreover, Tableau offers robust support for big data, enabling fast and efficient analysis of large datasets.

The main features of Tableau are its intuitive drag-and-drop interface, which allows users to easily create interactive visualizations without the need for complex coding or scripting. Additionally, Tableau offers powerful data blending and data integration capabilities, enabling users to combine data from different sources into one coherent analysis. Another key feature is Tableau's ability to handle big data, allowing users to analyze and visualize large datasets quickly and efficiently.