Top 20 NuGet system.net Packages

A WebSocketClient and WebSocketServer wrapper for WebSocket Api In System.Net, A drop in replacement for WebSocketSharp
A mocking framework to mock HttpClient requests.
An implementation of WebClient that is open for modification.
A collection of .Net utilities for System.Net
*TestBase* gives you a flying start with - fluent assertions that are simple to extend - sharp error messages - tools to help you test with “heavyweight” dependencies on - AspNetCore.Mvc, AspNet.Mvc 3-5, or WebApi Contexts - HttpClient - Ado.Net - Streams & Logging - Mix & match with your ...
System.Net utility functions for .Net projects.
Interfaces for some System.Net functionality
An implementation of WebClient that is open for modification.
DevSkin.System.Net.Extensions