Browse free open source Java Database Engines/Servers and projects below. Use the toggles on the left to filter open source Java Database Engines/Servers by OS, license, language, programming language, and project status.
A powerful, cross platform, SQL database system
Relational Database
A free, open source, powerful tool for working with messy data
Search engine and data mining applications and ClueWeb datasets.
Small, fast Java library for reading and writing CSV files
Fast, scalable, robust graph database platform
Open Java API for OLAP
Conductor is an event driven agentic workflow engine for AI agents
A Database System for Metamodeling and Method Engineering
eXist-db is a feature rich Open Source native XML database
Rel is a database management system (DBMS) that implements Tutorial D.
dBase for Java
Main Memory Database Cache
An Enterprise Information Integration System