MicroStream is now EclipseStore

Databaseless Java-Native Persistence for Microservices, Serverless, Mobile & Edge


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

EclipseStore 1.1.0 final release is now available!


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 Development

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Open Source


Java-native persistence for microservices, serverless and monoliths.  It runs also on Android mobile, embedded and edge devices.

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EclipseStore Add-on & Support

MicroStream Enterprise

Ultra-fast off-heap indexing for searching biggest collections.  Enterprise-grade support for EclipseStore. 

Coming soon!

Distributed EclipseStore Apps

MicroStream Cluster

Build distributed EclipseStore apps and microservices that need replication, high-availability & elastic scalability.

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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

Areas of Usage

Server Side

Serverless Functions
Smaller Monoliths



Any Cloud



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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Upcoming Trainings

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Apr 4 - 6 in Atlanta, US

MicroStream is a Devnexus 2023 Gold Sponsor. Visit our booth #31 and join our talks on Thu 11:30, Room 320 - The Future is Serverless with Java (Markus Kett, CEO). Thu 13:30, Room 303 - Jakarta EE integration testing (Rudy De Busscher).


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Geecon 2023

Apr 19 - 21 in Kraków, Poland

MicroStream is Geecon 2023 Gold Sponsor. Visit our booth and join our talks on Wed 13:30 - High-Performance Java-Cloud-Native Apps (Markus Kett, CEO).

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JCON OpenBlend Slovenia

Jun 1 - 2 in Portorož, Slovenia

Visit our booth, get a MicroStream t-shirt, join our raffle, and don't miss our talks. The schedule is coming soon.

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Jun 20 - 23 in Cologne, Germany

MicroStream is a JCON EUROPE 2023 Platinum Sponsor. Visit our booth, get a MicroStream t-shirt, don't miss our talks, and register for our MicroStream workshop. The schedule is coming soon.

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Big-Data.AI Summit 2023

Sep 20 - 21 in Berlin, Germany

MicroStream is a Big-Data.AI Summit 2023 Premium Sponsor. Visit our booth and join our keynote and our workshop with our CEO Markus Kett. Schedule is coming soon.

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MicroStream is a JCON WORLD 2023 Platinum Sponsor. Join our talks and register for our MicroStream workshop. The schedule is coming soon.

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Upcoming Talks

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We support you from a POC, through designing the architecture and object model up to implementing your entire applicationor certain parts of it and running it in any environment.

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