Databaseless In-Memory Data Processing

High-Frequency Data Processing In-Memory to Meet Highest Requirements on Enterprise Business Applications.

Up to 1000x Faster Than Any Conventional Database. Saves Up to 96% Database Costs in the Cloud. 

Latest Version: EclipseStore 1.3.0


EclipseStore            Code on GitHub 

Ultra-fast In-Memory Data Processing

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Lowest Data Storage Costs in the Cloud

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Revolutionary Simple Implementation

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Open Source


High-performance Java persistence for monolithic Java applications. Runs embedded  on single server nodes and on Android mobile and edge devices.

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Extension for EclipseStore & Enterprise Support

MicroStream Enterprise

Ultra-fast indexing for EclipseStore. Enables you to search your entire database, even billions of objects, in milliseconds, and automates lazy-loading.  Includes enterprise-grade support for EclipseStore. 

Coming soon!

Distributed EclipseStore Applications

MicroStream Cluster

Build distributed EclipseStore monoliths and microservices that need load balancing, data redundency, replication, high-availability, elastic scalability and scale-to-zero. Available as SaaS and On-Premise.

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High-Secure Java Serialization 

Eclipse Serializer

Eliminate deserialization attacks, the biggest securty flaw of Java, and build systems with the highest demands on security.

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Frameworks using EclipseStore
University of Bamberg, Germany
Department of Applied Computer Science


MicroStream vs. JPA:
An Empirical Investigation

This work empirically assessed the performance of MicroStream (now EclipseStore) by implementing two applications. The first one is a modified version of MicroStream’s BookStore performance demo app. The second app is an OLTP system based on the TPC -C benchmark specification. Furthermore, the authors implemented concurrent data access by using an approach based on structured modeling to handle lock granularity and deadlocks. The results show that MicroStream is up to 427 times faster when comparing the service execution time on the server with the fastest JPA transaction. From a user’s perspective, where network overhead, scheduling etc. impact the overall server response time, MicroStream is still up to 47% faster than a comparable JPA-based solution.


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  • University of Bamberg, Germany
    Department of Applied Computer Sciences Guido Wirtz, Prof. Dr. rer. nat. Sebastian Boehm, Master of Science Johannes Manner, M.Sc. Applied Computer Sciences Benedikt Full
  • Publisher: Springer International Publishing AG
  • Chapter length: 20 pages

EclipseStore is an Integral Part of Helidon & Micronaut

We are proud to be an integral part of and contribute to leading microservice frameworks. We are happy to deliver value to the Java open source community.


Micronaut provides first-class support for EclipseStore. MicroStream is a major sponsor of the Micronaut Open Source project.


Helidon was the first microservice framework that supports EclipseStore. Both Helidon flavours, Helidon MP and SE provide a great EclipseStore integration. Helidon is a leading microservice framework for Java, powered by Oracle.

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