Apache IoTDB
A free, open source, powerful tool for working with messy data
Database subsetting and relational data browsing tool
Free database schema discovery and comprehension tool
A graph database that supports more than 100+ billion data
Distributed database warehouse for transactions, search and analytics
An open source SQL database designed to process time series data
ORBIT : Operating Business Intelligence Tool
Relational database replication tool based on XML Schema
A Database System for Metamodeling and Method Engineering
free DB GUI Tool
Version Control for your Database
Qvu Data Service is an ad-hoc query, reporting and api data service
Common Resource Grep
Search engine and data mining applications and ClueWeb datasets.
Transactional schema-less embedded database used by JetBrains
Monitor Java applications - SQL, HTTP, Methods, Exceptions and more.
Open Source and data mining software
World's first open source data quality & data preparation project
Speedment is a Stream ORM Java Toolkit and Runtime
An easy-to-use BI server built for SQL lovers. Power data analysis
Field data measurements entry and complex data structures at ease
Organizes and searches user-defined items and images in a MySQL DB.
A blazing fast ACID compliant NoSQL DataLake