Article · Wikipedia archive · Last revised May 27, 2026

Dapper ORM

Dapper is an object–relational mapping (ORM) product for the Microsoft .NET platform. It provides a framework for mapping an object-oriented domain model to a traditional relational database. Its purpose is to relieve the developer from a significant portion of relational data persistence-related programming tasks. Dapper is free as open source software that is distributed under the Apache License 2.0.

Last revised
May 27, 2026
Read time
≈ 1 min
Length
206 w
Citations
5
Source
Wikipedia ↗
Dapper
Original authorStack Overflow
Stable release
2.1.441 / April 12, 2024 (2024-04-12)
Written inC#
Operating systemCross-platform
Platform.NET 4.6.1 and .NET Standard 2.02
TypeObject–relational mapping
LicenseApache License 2.03
Websitegithub.com/DapperLib/Dapper
Repository

Dapper is an object–relational mapping (ORM) product for the Microsoft .NET platform. It provides a framework for mapping an object-oriented domain model to a traditional relational database.4 Its purpose is to relieve the developer from a significant portion of relational data persistence-related programming tasks. Dapper is free as open source software that is distributed under the Apache License 2.0.

Dapper was originally developed for and by Stack Overflow.

Feature summary

The Dapper team advertises the following features:5

  • Speedy and high performance
  • Choice of static/dynamic object binding
  • Handling of SQL query
  • Multiple query support
  • Support and handling of stored procedures

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