Comparing the performance of different .NET object mappers.

• Mapperly⭐️: A .NET source generator for generating object mappings. No runtime reflection - docs
• Mapster⭐️: A fast, fun, and stimulating object-to-object Mapper - docs
• AutoMapper: A convention-based object-object mapper in .NET - docs
• EmitMapper: Powerful customisable tool for mapping entities to each other
• TinyMapper: A quick object-object mapper for .NET - docs
• ExpressMapper: .Net open source library - lightweight, lighting fast .Net mapper to map one type of object(s) to another in automated and easy way - docs
• AgileMapper: A zero-configuration, highly-configurable object-object mapper with viewable execution plans - docs
• Manual mapping: Generated by MappingGenerator visual studio extension, an "AutoMapper" like Roslyn based, code fix provider that allows to generate mapping code in design time.

Run the following command.

dotnet run -c Release

• Mapperly is the Fastest mapper.
• Mapster is the second fastest mapper.