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Whether you are migrating a legacy .NET Framework application to the modern .NET 8/9 ecosystem or ensuring your libraries support multi-platform environments like Linux and macOS, understanding your code’s "portability score" is essential. The (often referred to as API Port or simply the Portability Analyzer ) has long been the gold standard for this task.
Use the command ApiPort.exe analyze -f [path-to-binaries] .
A list of specific non-portable APIs and recommended alternatives. Benefits of Portability Analysis The .NET Portability Analyzer - Microsoft Learn portability analyzer new
The New Era of Code Portability: Mastering the .NET Portability Analyzer
While many developers still search for the "new Portability Analyzer," it is important to note that the standalone tool's backend service has been deprecated. For a modern, supported experience, Microsoft recommends the following alternatives: Whether you are migrating a legacy
If you prefer the classic Portability Analyzer Console App , here is how to get started:
The tool generates an Excel or HTML report containing: Portability Summary: A percentage score for each assembly. A list of specific non-portable APIs and recommended
Set your target platforms (e.g., .NET 8.0) in the tool settings. Run Analysis: