C# ORM

Open-source C# projects categorized as ORM
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Topics: .NET C# dotnet-core SQL Database
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Top 23 C# ORM Projects

  • Entity Framework

    EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

    • Project mention: Multi-tenancy using schemas with Entity Framework and PostgreSQL | dev.to | 2023-10-16

    * You can check the original CreateMigration implementation at: https://github.com/dotnet/efcore/blob/release/7.0/src/EFCore.Relational/Migrations/Internal/MigrationsAssembly.cs

  • SqlSugar

    .Net aot ORM Fastest ORM Simple Easy Sqlite orm Oracle ORM Mysql Orm postgresql ORm SqlServer oRm 达梦 ORM 人大金仓 ORM 神通ORM C# ORM , C# ORM .NET ORM NET5 ORM .NET6 ORM ClickHouse orm QuestDb ,TDengine ORM,OceanBase orm,GaussDB orm ,Tidb orm Object/Relational Mapping

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo

  • FreeSql

    🦄 .NET aot orm, C# orm, VB.NET orm, Mysql orm, Postgresql orm, SqlServer orm, Oracle orm, Sqlite orm, Firebird orm, 达梦 orm, 人大金仓 orm, 神通 orm, 翰高 orm, 南大通用 orm, 虚谷 orm, 国产 orm, Clickhouse orm, QuestDB orm, MsAccess orm. (by dotnetcore)

  • EFCore.BulkExtensions

    Entity Framework EF Core efcore Bulk Batch Extensions with BulkCopy in .Net for Insert Update Delete Read (CRUD), Truncate and SaveChanges operations on SQL Server, PostgreSQL, MySQL, SQLite

    • Project mention: Best way to do mass inserts with Entity Framework | /r/dotnet | 2023-06-08

    EF Core Bulk Extensions has helped me out many a day.

  • FluentMigrator

    Fluent migrations framework for .NET

    • Project mention: Entity Framework Core Owned Entity | dev.to | 2024-02-15

    Fluent Migrator

  • LINQ to DB

    Linq to database provider.

    • Project mention: Upserting complex data models from an API into EF Core entities | /r/dotnet | 2023-06-02

  • Pomelo.EntityFrameworkCore.MySql

    Entity Framework Core provider for MySQL and MariaDB built on top of MySqlConnector

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

    WorkOS logo

  • NHibernate

    NHibernate Object Relational Mapper

  • PetaPoco

    Official PetaPoco, A tiny ORM-ish thing for your POCO's

    • Project mention: Dapper vs. Entity Framework With Postgres | /r/dotnet | 2023-12-06

  • Massive

    A small, happy, dynamic MicroORM for .NET that will love you forever.

  • Dapper Extensions

    Dapper Extensions is a small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions provides a predicate system. The goal of this library is to keep your POCOs pure by not requiring any attributes or base class inheritance.

  • RepoDb

    A hybrid ORM library for .NET.

  • Fluent NHibernate

    Fluent NHibernate!

  • LINQKit

    LINQKit is a free set of extensions for LINQ to SQL and Entity Framework power users.

  • Entity Framework 6

    This is the codebase for Entity Framework 6 (previously maintained at https://entityframework.codeplex.com). Entity Framework Core is maintained at https://github.com/dotnet/efcore.

  • EntityFramework.Exceptions

    Handle database errors easily when working with Entity Framework Core. Supports SQLServer, PostgreSQL, SQLite, Oracle and MySql.

  • sharding-core

    high performance lightweight solution for efcore sharding table and sharding database support read-write-separation .一款ef-core下高性能、轻量级针对分表分库读写分离的解决方案，具有零依赖、零学习成本、零业务代码入侵

  • SmartSql

    SmartSql = MyBatis in C# + .NET Core+ Cache(Memory | Redis) + R/W Splitting + PropertyChangedTrack +Dynamic Repository + InvokeSync + Diagnostics

  • Insight.Database

    Fast, lightweight .NET micro-ORM

  • NPoco

    Simple microORM that maps the results of a query onto a POCO object. Project based on Schotime's branch of PetaPoco

  • ExcelMapper

    An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.

  • MicroOrm.Dapper.Repositories

    CRUD for Dapper

  • Npoi.Mapper

    Use this tool to import or export data with Excel file. The tool is a convention based mapper between strong typed object and Excel data via NPOI.

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

C# ORM related posts

Index

What are some of the best open-source ORM projects in C#? This list will help you:

Project Stars
1 Entity Framework 13,325
2 SqlSugar 4,986
3 FreeSql 3,973
4 EFCore.BulkExtensions 3,460
5 FluentMigrator 3,120
6 LINQ to DB 2,859
7 Pomelo.EntityFrameworkCore.MySql 2,639
8 NHibernate 2,102
9 PetaPoco 2,048
10 Massive 1,799
11 Dapper Extensions 1,776
12 RepoDb 1,674
13 Fluent NHibernate 1,654
14 LINQKit 1,565
15 Entity Framework 6 1,407
16 EntityFramework.Exceptions 1,119
17 sharding-core 1,087
18 SmartSql 1,045
19 Insight.Database 844
20 NPoco 835
21 ExcelMapper 728
22 MicroOrm.Dapper.Repositories 631
23 Npoi.Mapper 577

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