1.Jaspersoft
A commercial open source software which includes a report designer, a reporting engine, a server repository, report scheduling and mobile BI, along with community forums and a wiki for support.
2.Pentaho
A free community edition business analytics suite, which includes business analytics as well as data integration, a report designer and a marketplace of plugins developed by the community to extend the capabilities of the Pentaho platform.
3.BIRT
An open source software project that provides the BIRT technology platform to create data visualizations and reports that can be embedded into rich client and Web applications, especially those based on Java and Java EE.
4.RapidMiner
A code-free analytics platform for data mining, machine learning, and predictive analytics. This means you can design your data analysis routines visually and speed up delivery by eliminating the need to write code.
5.SpagoBI
The only 100 percent open source, complete business intelligence suite. Its modular architecture, based on open standards, allows easy customization and integration into legacy environments .