XPO is a .NET object-relational mapper for building data-driven applications against relational databases. It provides persistent objects, LINQ querying, schema management, and database-provider independence for enterprise and line-of-business developers.
💡 Pick it for a free, mainstream .NET ORM with Microsoft support and the broadest ecosystem.
Entity Framework Core is a lightweight, extensible, open source, and cross-platform version of the popular Entity Framework data access technology. It allows...
💡 Pick it for advanced mappings and mature enterprise ORM behavior without commercial licensing.
NHibernate is an object-relational mapping (ORM) solution for the Microsoft .NET platform. It provides a framework for mapping an object-oriented domain model...
💡 Pick it when SQL control and low overhead matter more than XPO's automatic object persistence.
Dapper is a lightweight ORM for .NET that focuses on raw performance and minimal overhead.
linq2db Community
💡 Pick it for lightweight, strongly typed LINQ with more SQL transparency and database control.
linq2db is an open-source, lightweight .NET data-access framework and LINQ provider for relational databases. It targets developers who want strongly typed queries,...
Free, open source
💡 Pick it for visual modeling and generated .NET data layers in larger, schema-driven projects.
LLBLGen Pro is a leading ORM framework for .NET developers that provides advanced code-generation and database mapping features.
Starting at $645 per developer
ServiceStack
💡 Pick it for a fast, typed micro-ORM that fits naturally into ServiceStack-based .NET services.
ServiceStack.OrmLite is a typed, lightweight .NET ORM focused on fast SQL generation and simple code-first database access. It suits developers building services...
Free for open source; commercial licensing available
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