DBMS supporting graph, document, full-text and geospatial models
Apache IoTDB
Database Replication, Filtered Synchronization, and Transformation
ORBIT : Operating Business Intelligence Tool
Qvu Data Service is an ad-hoc query, reporting and api data service
ETL engine based on Groovy
A bug tracking system in a wlan-, web- or rmi-environment
Development Platform for Web and Mobile Applications
Active, high-performance open source database middleware
World's first open source data quality & data preparation project
An easy-to-use BI server built for SQL lovers. Power data analysis
The database purpose-built for stream processing applications
CrNiCKL (chronicle) is a Java database for time series
Data quality analysis, profiling, cleansing, duplicate detection +more
Adhoc Data Exploration - Live & Easy
Free data acquisition and data visualization cross-platform software
Location Data Visualisation and Editing
RMS is created in Java and still not completed, still working on it.
Open source Extract Transform Load engine written in Java
ChronoDB is a data manager for generic time series.