DBMS supporting graph, document, full-text and geospatial models
Apache IoTDB
ORBIT : Operating Business Intelligence Tool
ETL engine based on Groovy
World's first open source data quality & data preparation project
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
Open source Extract Transform Load engine written in Java
ChronoDB is a data manager for generic time series.