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New rapid software development tool for BlackBerry smartphones includes Perst Lite embedded database! Read more.

McObject's Perst for .NET embedded database now supports Windows Phone 7 (WP7) smartphones. Read the press release.


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New eXtremeDB 4.1 enhances embedded database's reliability, performance, data security, ease-of-use and internationalization! Read more.

New Java Native Interface (JNI) for eXtremeDB provides fastest Java database solution for embedded and real-time enterprise systems.

 Interested in boosting software performance on multi-core CPUs? Read McObject CEO Steve Graves' new article in RTC magazine.

Printable Version

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 for Silverlight - including Web-based CRM demo

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.