Top 20 NuGet lightweight Packages

Feather2 is extremely fast and lightweight network messaging system. It's kinda like WCF, without the nonsense and with scolding fast speeds. It's great for applications communicating over a network when speed, efficentcy or the one-way nature of traditional web APIs isn't a great fit.
Extension to MVC Easy CMS. It allows to manage views and create new pages through the backoffice.
Extension to MVC Easy CMS. It allows to store data to MS SQL data base using NHibernate
NoIIS is a lightweight C# web server for the IHttpHandlerFactory and IHttpHandler to void the huge and heavy IIS web server for some cases.
RavenDB Persistence package for SleepingBarber framework
Event log logging package for SleepingBarber framework
RavenDB logging package for SleepingBarber framework
A simple lightweight Neural network library, suitable for education and enthusiasts. Currently in development and not finished yet, please look forward for updates.
A lean and mean messagebus
A lean and mean messagebus
Provides an easy to use asynchronous HTTPS and HTTP that is ultra light-weight, portable, and fast for usage with micro-services. Intended to replace heavy-weight resource hungry and wasting frameworks with something that is dependable, simple to maintain, and fast.
A lightweight, fluent-style validation library
SharpUI is a lightweight RCL package. There are fully responsive practical components you can use to develop your blazor web applications. You can use the framework in both Server-Side and Web Assembly versions of powerful Blazor! Since the package is in first releases, already there is ...
Easy to use, lightweight CMS for ASP.NET MVC 3, MVC 4 and MVC 5 with Razor view engine and C# based on html markup. Can be installed as on new created MVC 3, MVC 4 and MVC 5 project as on already existing. Managing zones are marked using html5 "data-" attributes.
Lightweight object mapper with support for declarative fluent syntax.
Simple, fast and powerful configuration manager for .net. Build your configurations from: * Config Files * Namespaces * Properties Load your configuration files from: * http (xml) * shared drives (xml, ini) * local disks (xml, ini)