Performance: Dapper has a reputation for being one of the fastest micro-ORMs available for .NET. It provides significant performance gains over Entity Framework, especially when large amounts of data are queried.
Flexibility: Dapper gives developers more control over their SQL queries, which can be a substantial advantage when you need to optimize certain queries or use more advanced SQL features that aren't supported by higher-level ORMs.
Ease of Use: Despite providing lower-level access to your database, Dapper is still very easy to use and doesn't require a steep learning curve.
Lightweight: Dapper is a micro-ORM and is considerably less resource-intensive than more feature-rich ORMs like Entity Framework. It's a great choice for applications where performance is critical.
Simplicity: Dapper's simplicity can be seen in its API design, making it easy to understand and implement in projects.
Integration with Stored Procedures: Dapper works seamlessly with stored procedures and doesn't impose any of its conventions, unlike Entity Framework. It can map the results from a stored procedure to a strongly typed model or a dynamic object.
Batch Queries and Transactions: Dapper allows you to execute batch queries enabling more efficient data operations easily.
No Tracking of Database Objects: Dapper doesn't track database objects, which simplifies coding for developers who prefer to manage the database state manually.
Efficient Data Reader Mapping: Dapper allows for efficient mapping of .NET data reader to a specified object model.