# cezarypiatek/MappingGenerator

:arrows_counterclockwise: "AutoMapper" like, Roslyn based, code fix provider that allows to generate mapping code in design time.

Repository: https://github.com/cezarypiatek/MappingGenerator
Canonical: https://ross.abutalabs.com/products/mappinggenerator
Homepage: https://marketplace.visualstudio.com/items?itemName=54748ff9-45fc-43c2-8ec5-cf7912bc3b84.mappinggenerator
Language: C#
License: MIT
License Family: permissive
Topics: roslyn, code-generation, mapping, automapper, codegenerator, mapper, dotnet, c-sharp, vsix, visual-studio
Archived: true
Last push: 2022-01-16T08:27:46+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3121, "days_push": 1690, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1023, forks 120 (observed 2026-08-28T04:03:16.152156+00:00)

## What it is
MappingGenerator is a Roslyn-based code fix provider for C# that generates object-to-object mapping code at design time, serving as a compile-time alternative to AutoMapper. It ships as a Visual Studio VSIX extension or NuGet package and also works with JetBrains Rider.

## Use cases
- generate mapping method implementations automatically in C#
- design-time alternative to AutoMapper
- generate full mapper classes from method signatures
- generate mapping lambdas for LINQ Select calls
- scaffold object initializers and method invocations
- implement object cloning code in Visual Studio

## When to choose
- you want explicit, compile-time-checked mapping code instead of reflection-based AutoMapper
- you work in Visual Studio or Rider with C# and want one-keystroke mapping generation
- you need scaffolding for object initializers and method invocations

## When to avoid
- you need actively maintained open-source software - the FOSS version is archived and development moved to a commercial product
- you don't use Visual Studio, Rider, or other Roslyn-based tooling
- you want runtime mapping configuration like AutoMapper's profiles

## Facets
- artifact type: plugin
- maturity: abandoned
- function: developer-tools
- domain: developer-tools
- platform: windows, dotnet, editor-plugin
- tags: roslyn, code-fix-provider, visual-studio-extension, object-mapping, automapper-alternative, csharp, vsix, design-time-codegen, code-generation, refactoring, dotnet, ides

## Member repositories
- cezarypiatek/MappingGenerator (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:16.152156+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:08:18.334760+00:00, confidence not recorded.
  - readme: https://github.com/cezarypiatek/MappingGenerator (fetched 2026-08-28T04:03:16.152156+00:00, sha ef4012020665)
  - homepage: https://marketplace.visualstudio.com/items?itemName=54748ff9-45fc-43c2-8ec5-cf7912bc3b84.mappinggenerator (fetched 2026-08-29T13:08:34.831240+00:00, sha 23b617dfb876)
- Data as of 2026-08-30T08:39:29.467469+00:00.