Open Source Business Intelligence Tools in Java

RapidMiner is a data analytics and machine learning platform for data preparation, modeling, validation, and deployment. It provides a visual workflow designer, automated ML, and integration with data sources and execution environments. The product is developed by Altair (rapid-i.

SpagoBI is an open source business intelligence suite with reporting, OLAP, dashboards, data mining, KPIs, geo-referenced analysis, and ETL capabilities. It includes SpagoBI Server, Studio for designing reports and dashboards, and Meta for metadata. The project is hosted at OW2; development continued under Knowage.

Talend provides data integration, quality, and governance software for ETL, migration, and synchronization between operational systems. It supports cloud and on-premise deployment and is now part of Qlik (Qlik Talend Cloud).