H2 is an embeddable RDBMS written in Java
NoSQL embedded document store for Java
Database subsetting and relational data browsing tool
Java and Android Database - fast and lightweight without any ORM
SQLite JDBC Driver
Postgresql JDBC Driver
Apache IoTDB
Database migrations made easy
Free database schema discovery and comprehension tool
Main Liquibase Source
Rapid API Development with MongoDB
AI-driven database tool and SQL client
Infinispan is an open source data grid platform
eXist Native XML Database and Application Platform
Get random, realtime read/write access to your Big Data
The open big data serving engine
ReplicaDB is open source tool for database replication
Addax is a versatile open-source ETL tool
SymmetricDS is database replication and file synchronization software
Eclipse JNoSQL is a framework
The financial transactions database designed for mission critical safe
A free, open source, powerful tool for working with messy data
Conductor is an event driven agentic workflow engine for AI agents
DBMS supporting graph, document, full-text and geospatial models