dotMemory
The .NET Memory Profiler.
dotMemory allows you to analyze memory usage in a variety of .NET and .NET Core applications: desktop applications, Windows services, ASP.NET web applications, IIS, IIS Express, arbitrary .NET processes, and more.
See Also
Automatic Inspections
Detect common memory issues - automatically.
Object Retention
Inspect retention paths for an instance or a group of objects.
Writing and Running Unit Tests with ReSharper
Run, debug and profile tests, do continuous testing, and inspect code coverage.