eXtremeDB in-memory embedded database for Linux, download now.

Hybrid (in-memory & on-disk) eXtremeDB Fusion embedded DBMS for Win32.

eXtremeSQL SQL ODBC interface for eXtremeDB (Win32).

Perst, an open source, object-oriented embedded database for Java &.NET.

All downloads - software, white papers, Webinars, docs & more!

McObject's eXtremeDB embedded database and Spirent TestCenter redefine scalability! Read more.

Our new recorded Webinar answers the question, "What Makes a Database System 'In-Memory'?"

Movimiento ATM and Perst Lite embedded database connect mobile workers via smartphone. Get details.

McObject partners with UK-based MPC Data in European embedded software markets. Read more.

Check out eXtremeDB's role in new consumer electronics, network appliance and biometric security devices!

McObject brings real-time eXtremeDB embedded database to Wind River's avionics platform. See the announcement.

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Perst - An open source, object-oriented embedded database

Perst is McObject's open source, dual license, object-oriented embedded database system (ODBMS). It is available in one edition developed as an all-Java embedded database, and another implemented in C# (for Microsoft .NET Framework applications).

Perst gives developers the ability to sort, store and retrieve objects in their applications with maximum speed and with low memory and storage overhead, while leveraging the object-oriented paradigm of Java and C#.

Perst Features and Benefits
Perst Lite for Java ME (J2ME)
Overview: Perst Embedded Database Specification
In-Depth Information: Perst Introduction and Tutorial (PDF / 38 pages)
Performance Benchmarks: PolePosition and TestIndex
Perst and the Android platform

Perst downloads:
Perst software (includes complete source code)
Perst documentation

 

Open Source, Dual Licensed

Whether you’re developing open source software or a proprietary, commercial product, McObject has Perst licensing options that fit.

Users can redistribute and/or modify Perst under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

For projects that don't fit under the GPL, a commercial license for Perst may be purchased from McObject. McObject also offers Perst product support.