This is a list of well-known object–relational mapping software.
Java Apache Cayenne, open-source for Java Apache OpenJPA, open-source for Java DataNucleus, open-source JDO and JPA implementation (formerly known as JPOX) Ebean, open-source ORM framework EclipseLink, Eclipse persistence platform Enterprise JavaBeans (EJB) Enterprise Objects Framework, Mac OS X/Java, part of Apple WebObjects Hibernate, open-source ORM framework, widely used Java Data Objects (JDO) JOOQ Object Oriented Querying (jOOQ) Kodo, commercial implementation of both Java Data Objects and Java Persistence API TopLink by Oracle
iOS Core Data by Apple for Mac OS X and iOS
.NET Base One Foundation Component Library, free or commercial Dapper, open source Entity Framework, included in .NET Framework 3.5 SP1 and above iBATIS, free open source, maintained by ASF but now inactive. LINQ to SQL, included in .NET Framework 3.5 NHibernate, open source
Objective-C, Cocoa
Enterprise Objects, one of the first commercial OR mappers, available as part of WebObjects Core Data, object graph management framework with several persistent stores, ships with Mac OS X and iOS
Perl DBIx::Class
PHP Laravel, framework that contains an ORM called "Eloquent" an ActiveRecord implementation. Doctrine, open source ORM for PHP, Free software (MIT) CakePHP, ORM and framework, open source (scalars, arrays, objects); based on database introspection, no class extending CodeIgniter, framework that includes an ActiveRecord implementation Yii, ORM and framework, released under the BSD license. Based on the ActiveRecord pattern FuelPHP, ORM and framework for PHP, released under the MIT license. Based on the ActiveRecord pattern. Laminas, framework that includes a table data gateway and row data gateway implementations Qcodo, ORM and framework, open source Redbean, ORM layer for PHP, for creating and maintaining tables on the fly, open source, BSD Skipper, visualization tool and a code/schema generator for PHP ORM frameworks, commercial
Python Django, ActiveRecord ORM included in Django framework, open source SQLAlchemy, open source, a Data Mapper ORM SQLObject, open source Storm, open source (LGPL 2.1) developed at Canonical Ltd. Tryton, open source web2py, the facilities of an ORM are handled by the DAL in web2py, open source Odoo – Formerly known as OpenERP, It is an Open Source ERP in which ORM is included.
Ruby ActiveRecord DataMapper iBATIS (inactive)
Smalltalk TOPLink/Smalltalk, by Oracle, the Smalltalk predecessor of the Java version of TOPLink
See also Comparison of object–relational mapping software
References