Pentaho Data Integration is a robust extract, transform, and load (ETL) tool that you can use to integrate, manipulate, and visualize your data. You can use PDI to import, transform, and export data from multiple data sources, including flat files, relational databases, Hadoop, NoSQL databases, analytic databases, social media streams, and operational stores. You can also use PDI to clean and enrich the data, move data between databases, and to visualize your data.