JasperReports is an open source Java reporting tool that can write to a variety of targets. Developed by Jaspersoft
License: Open Source
Pentaho is a robust solution focused on data integration and ETL, making it ideal for complex data transformations and enterprise-level solutions. In contrast, JasperReports excels in user-friendly reporting, visualization, and dashboarding, making it a better choice for businesses needing quick ad-hoc reports and collaboration.