Top 20 NuGet single Packages

Class library for accelerating Xamarin.Android development. Note: If you encounter layout inflation exceptions (could be masked as NotFoundException, or some issue with text_color_secondary.xml etc), make sure you define colorControlNormal and use a style with that attribute defined.
A library that contains a single class to assist with JSON parsing, when an object returned can either be a single item or a list of items.
SPA Bundler bundles Images, Fonts, Css, Js and Html into a single html file. It is intended to optimize performance for Single Page Applications. It minifies and optimizes all files involved.
A helpful library for configuring and managing NHibernate session factories and sessions
Beetle Entity Framework 6 handler.
Beetle.js Client with TypeScript definition files.
Single Line Log (single-line-log) binding library for Bridge.NET projects.
Gear for creating single-instance applications using named pipes.
FileDB is a free, fast, lightweight C# (v3.5) DLL project to store, retrieve and delete files using a single archive file as a container on disk
Beetle.js javascript files.
Library that helps to create single instance WPF application for .NET 3.5+.
Quickly develop file (Document) based WinForms applications using Kajabity.DocForms to handle all the boilerplate file handling. Visit the project website for detailed usage instructions, or see the samples on GitHub. Originally part of Kajabity.Tools.
Source code package. An extension for determining whether or not an object can be expressed as a single value.
Corvinus Base WPF Framework
JavaScript navigation router, with knockout support.
JavaScript knockoutjs SPA(Single Page Application) navigation router. With typescript support.
SPA Bundler bundles Images, Fonts, Css, Js and Html into a single html file. It is intended to optimize performance for Single Page Applications.
Role provider to work with single-sign-on projects
One place for user authentication to be used for all your apps.
To create single instance applications on .NET Core/.NET 5