Fody/Fody

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

4541 stars · 464 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Fody is an extensible tool for weaving .NET assemblies, manipulating IL code as part of the build process. It provides an add-in model that eliminates the plumbing code normally required to integrate MSBuild and Visual Studio APIs for IL manipulation.

Use cases

• weave IL into .net assemblies at build time
• inject code into assemblies without source changes
• implement aspect-oriented programming in .net
• write custom msbuild il post-processing add-ins
• modify compiled assemblies during build pipeline

When to choose

• you need to modify .NET assembly IL as part of your build
• you want to add cross-cutting concerns like logging or INotifyPropertyChanged without source changes
• you are building a Fody add-in and need the core weaving engine

When to avoid

• you only need source-level code generation (use source generators instead)
• your project does not use MSBuild-based .NET tooling
• you cannot accept the project's patron/licensing expectations

Facets

library · maturity active

build-tool compiler plugin-system developer-tools developer-tools programming-languages compilers dotnet windows cross-platform cli il-weaving msbuild aop csharp nuget assembly-post-processing automation

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For agents

markdown · JSON · MCP: product_card(name="Fody/Fody")