This table shows a comparison of notable ORM software products currently available.
| Software | Platform | Availability | License | Version | Persistence Specification |
|---|---|---|---|---|---|
| Apache Cayenne | Java Virtual Machine | Open source | Apache License 2.0 | 3.0.2 / July 21, 2011 | |
| Dapper | .NET 4.0 | Open source | Apache License 2.0 | 1.8 NuGet | |
| DataNucleus | Java Virtual Machine | Open source | Apache License 2 | 4.1.0.RELEASE / May 19, 2015 | JDO |
| DBIx::Class | Perl | Open source | Artistic License 1.0 & GPL | 0.082820 / March 20, 2015 (2015-03-20)[1] | |
| Django | Python | Open source | BSD licenses | 2.1 (1 August 2018) | |
| Doctrine | PHP | Open source | MIT | 2.4/April 8, 2014 | |
| EclipseLink | Java Virtual Machine | 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 core | Open Source | Apache License 2.0 | 2.0 | |
| LLBLGen Pro | .Net Core & .Net Framework | Source available for customers | Proprietary License | 5.7 / 25 May 2020 | Designer supports LLBLGen Engine, EFCore, EF6 |
| Hibernate | Java Virtual Machine | Open source | GNU Lesser General Public License | 4.2.5 / August 28, 2013 | JPA 2.0 |
| MyBatis/iBATIS | Cross-platform | Open source | Apache License 2.0 | ||
| jOOQ | Java Virtual Machine | Open source | Apache License 2.0 and Proprietary License | 3.2.0 / October 9, 2013 | |
| Microsoft ADO.NET Entity Framework | .NET 4.5 | Part of .NET 4.5 | Apache License 2.0[2] | v6.0 (2014) | |
| nHibernate | .NET 4.5 | Open source | GNU Lesser General Public License | 4.0 (2014-08-17[3]) | |
| ODB | Cross-platform C++ | Dual-licensed | GNU General Public License and Proprietary License | 2.4.0 / February 11, 2015 | |
| RedBeanPHP | PHP | Open source | BSD License | 4/April 1, 2014 | |
| SQLAlchemy | Python | Open source | MIT License | 1.2.14 / November 10, 2018 (2018-11-10) | |
| SQLObject | Python | Open source | LGPL | 3.8.0 / December 7, 2019 (2019-12-07) | |
| Skipper | PHP | Commercial | Proprietary software | 3.0 | |
| Storm | Python | Open source | LGPL 2.1 | 0.20 / June 28, 2013 (2013-06-28) | |
| TopLink | Java Virtual Machine | Commercial | Oracle License | 10g | JPA |
| 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) |
