H2 is an embeddable RDBMS written in Java
Database subsetting and relational data browsing tool
A Java SQL client for any JDBC compliant database
Database migrations made easy
CrateDB is a distributed and scalable SQL database
AI-driven database tool and SQL client
jdbi is designed to provide convenient tabular data access in Java
Ebean ORM
PolarDB-X is a cloud native distributed SQL Database
General-purpose bitemporal database for SQL, Datalog & graph queries
Database connection pool written in Java
An open source SQL database designed to process time series data
ReplicaDB is open source tool for database replication
DBMS supporting graph, document, full-text and geospatial models
CDC Connectors for Apache Flink
HHDB SQL Admin is a graphical PostgreSQL client written in Java.
MyBatis SQL mapper framework for Java
Mirror of Apache Phoenix
A generator of DTO, Model, and DAO classes to access relational DB
Apache Iceberg
Distributed database ecosphere
The modern AI‑first database client for developers DBAs and analyst
Apache IoTDB