Comparison of object–relational mapping software

This table shows a comparison of notable and available ORM software products.

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Software	Platform	Availability	License	Version	Persistence Specification
Apache Cayenne	Java	Open source	Apache License 2.0	4.2.2^[1] / 2025-03-14; 60 days ago
Dapper	.NET 4.0	Open source	Apache License 2.0	1.8 NuGet
DataNucleus	Java	Open source	Apache License 2	4.1.0.RELEASE / May 19, 2015	JDO
DBIx::Class	Perl	Open source	Artistic License 1.0 & GPL	0.082843 / May 17, 2022 (2022-05-17)^[2]
Django	Python	Open source	BSD licenses	5.2^[3] 2 April 2025; 41 days ago
Doctrine	PHP	Open source	MIT	2.14.1 / January 16, 2023
EclipseLink	Java	Open source	Eclipse Public License Version 1.0 (EPL) and Eclipse Distribution License Version 1.0 (EDL)	2.4.2 / July 4, 2013	JPA 2.0
Entity Framework Core	.NET	Open Source	Apache License 2.0	6.0 / November 10, 2021
Hibernate	Java	Open source	GNU Lesser General Public License	5.4.31 / April 30, 2021	JPA 2.0
MyBatis/iBATIS	Cross-platform	Open source	Apache License 2.0
jOOQ	Java	Open source	Apache License 2.0 and Proprietary License	3.2.0 / October 9, 2013
Microsoft ADO.NET Entity Framework	.NET Framework 4.5	Part of .NET 4.5	Apache License 2.0^[4]	v6.0 (2014)
nHibernate	.NET Framework 4.6.1	Open source	GNU Lesser General Public License	5.3.12 (2022-05-01)
RedBeanPHP	PHP	Open source	BSD License	2023-03-17; 2 years ago 5.7.4^[5]
SQLAlchemy	Python	Open source	MIT License	2025-03-27; 47 days ago 2.0.40^[6]
SQLObject	Python	Open source	LGPL	2025-03-07 / 3.13.0
Skipper	PHP	Commercial	Proprietary software	3.0
Storm	Python	Open source	LGPL 2.1	0.20 / June 28, 2013 (2013-06-28)
TopLink	Java	Commercial	Oracle License	10g	JPA

See also