Comparison of object–relational mapping software

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This table shows some of the major ORM software products currently available.

Software Platform Availability License Version
Autumn Python Open source MIT License 0.5.1 (2008-12-23[1])
DataObjects.Net .NET 4.0 Commercial 4.4 (2011-02-11[2])
DevExpress .NET 4.0 Commercial Q1'10 (2010-05-19)
ECO .NET 4.0 Commercial ECO 6 Final (2011-04-18[3])
Hibernate Java Virtual Machine Open source GNU Lesser General Public License 3.6.2 Final / March 10, 2011
iBATIS Cross-platform Open Source Apache License 2.0
LLBLGen_Pro .NET 4.0 Commercial 3.1
Microsoft ADO.NET Entity Framework .NET 4.0 Part of .NET 4.0 v4.0 (2010-04-12)
nHibernate .NET 2.0 Open source GNU Lesser General Public License 2.1.2.GA (2009-11-22[4])
ODB Cross-platform C++ Dual-licensed GNU General Public License and Proprietary License 1.5.0 / July 26, 2011
SQLAlchemy Python Open source MIT License 0.6.4 / September 7, 2010 (2010-09-07)
SQLObject Python
Storm Python Open source LGPL 2.1 0.18 / October 26, 2010 (2010-10-26)
SubSonic .NET 2.0 Open Source New BSD 3.0 / July 2009
OpenAccess ORM .NET 2.0+ Free & Commercial Q2'11 (2011-07-13)
TopLink Java Virtual Machine Commercial Oracle License 10g
WebORB Integration Server .NET, Java, PHP Commercial & Open source WebORB for .NET and WebORB for Java = Proprietary License, WebORB for PHP = Mozilla Public License WebORB for .NET v.4.2 (Oct 2010), WebORB for Java v.4.0 (Sep 2010), WebORB for PHP (Sep 2008)

See also

References