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Top Java Databases 2025

GitHub Libraries → Java → Databases
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questdb/questdb 15K +56

added 2 months ago

QuestDB is the fastest growing open-source time-series database offering blazingly fast, high throughput ingestion and dynamic, low-latency SQL queries

Java Databases

neo4j/neo4j 14K +77

added 2 months ago

Neo4j is the world’s leading Graph Database. It is a high performance graph store with all the features expected of a mature and robust database, like a friendly query language and ACID transactions.

Java Databases

realm/realm-java 11K -1

added 2 months ago

Realm is a mobile database that runs directly inside phones, tablets or wearables.

Java Databases Android Databases

apache/cassandra 9K +7

added 1 week ago

Apache Cassandra is a highly-scalable partitioned row store. Rows are organized into tables with a required primary key.

Java Databases

jankotek/mapdb 4K +2

added 3 months ago

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

Java Data Structures Databases Kotlin Data Structures Databases

h2database/h2database 4K +10

added 2 months ago

H2 is an embeddable RDBMS written in Java.

Java Databases

jetbrains/xodus 1K +2

added 3 months ago

Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.

Kotlin Databases Java Databases

mariadb4j/mariadb4j 877 +1

added 3 months ago

MariaDB Embedded in Java JAR

Java MySQL Libraries Testing Libraries Databases

nitrite/nitrite-java 864

added 3 months ago

NoSQL embedded document store for Java

Java Databases Android Databases Kotlin Databases

lmdbjava/lmdbjava 831 +1

added 3 months ago

Lightning Memory Database (LMDB) for Java: a low latency, transactional, sorted, embedded, key-value store

Java Databases Database Libraries

eclipse-store/store 281 +17

added 1 month ago

EclipseStore is a breakthrough Java-native persistence layer built for cloud-native Java applications and microservices. EclipseStore runs also on Android mobile, edge, and embedded devices.

Java Databases Android Databases

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