Web Directory

» FastObjects j2
   A pure Java object database (ODBMS) component embedded into Java applications to provide object persistence. The j2 OODB is compliant with JDO and is designed for use in embedded systems.
   http://www.versant.com/en_US/products/fastobjects

» JODB
   Presents an open source object-oriented database project with downloads, help, forum, FAQs, links and license information.
   http://www.java-objects-database.com

» JYD Object Database
   Pure object DBMS written entirely in Java. Multi-user with client-server support and garbage collection. [Commercial]
   http://www.jyd.com/

» JalistoPlus
   A lightweight, transactional database which is able to directly persist and query for Java object graphs is presented with news, download, forum, tutorial and roadmap.
   http://jalistoplus.sourceforge.net/

» Jeevan
   100% pure Java Object Oriented Database, with a simple API and no schema definition language. [Commercial]
   http://www.w3apps.com/index.jsp

» MyOODB ( My Object-Oriented Database & Web Services )
   A database and Web Services (SDK), includes documentation, example code and information about the author.
   http://www.myoodb.org/

» ObjectDB
   A full featured Object Database for Java, written entirely in Java. JDO compliant. [Free for non-commercial]
   http://www.objectdb.com/

» ObjectStore
   A complex data management and real-time event processing application for Java and C++ applications.
   http://www.progress.com/objectstore/index.ssp

» Ozone
   Open source Java Object Database Management System (ODBMS), with multi-user support, object-level access rights, deadlock detection, and XML/DOM support. [Open Source, GPL/LGPL]
   http://www.ozone-db.org/

» SOD
   Alpha-quality object-oriented database providing ODMG-conforming Java and C++ language bindings, for Windows and Linux. [Free for personal use]
   http://www.tneumann.de/sod/index.html

» Sieben Geisslein
   An object store implemented in Java. [Open Source, BSD style]
   http://siebeng.sourceforge.net/

» db4o
   Object database in Java for Java. [Free for non-commercial]
   http://www.db4o.com/