Top 20 NuGet extensions Packages

Library of ASP.NET web forms extensions, embedded resource hosting and HTTP Module for implementing role-based security.
Library of .NET functions, extensions and components including asynchronous processing queues, configuration APIs, diagnostics, error handling, console functions, adapter framework, active directory and local account functions, checksum algorithms, unit conversion, binary parsing, cron-style task sc...
Library of base Windows Form and WPF Window extensions and dialogs, including those needed for implementing role-based security inside a Windows application.
A MVVM framework that integrates with the Reactive Extensions for .NET to create elegant, testable User Interfaces that run on any mobile or desktop platform. Supports Xamarin.iOS, Xamarin.Android, Xamarin.Mac, Xamarin Forms, WPF, Windows Forms, Windows Phone 8.1, Windows Store and Universal Windows...
Azure Storage Extensions is a .NET library aimed for managing and querying entities from Microsoft Azure Storage. It's built on top of Azure Storage Client Library, provides LINQ to Azure Tables queries and async interfaces.
Reactive Extensions for JavaScript libraries.
Amazon Web Services .NET Standard Extentions
This is all the assemblies of the Cuemon .NET Standard family.
This project enhances LINQ to Objects with the following methods: Acquire, AggregateRight, Append, Assert, AssertCount, AtLeast, AtMost, Await (EXPERIMENTAL), AwaitCompletion (EXPERIMENTAL), Backsert, Batch, Cartesian, Choose, CountBetween, CompareCount, CountBy, CountDown, Consume, DistinctBy, Ends...
A F#-friendly wrapper for the Reactive Extensions.
Reactive Extensions for JavaScript library with aggregation event processing query operations.
Reactive Extensions for JavaScript library with reactive coincidence join event processing query operations.
Reactive Extensions for JavaScript library with join patterns event processing query operations.
Reactive Extensions for JavaScript test library, used to write unit tests for complex event processing queries.
Reactive Extensions for JavaScript library with experimental operators.
Reactive Extensions for JavaScript library with binding operationrs.
Allows to configure Log4net as Microsoft Extensions Logging handler on any ASP.NET Core application. Original code proposal by @anuraj --> https://dotnetthoughts.net/how-to-use-log4net-with-aspnetcore-for-logging/
Extensions for StandardDot
Reactive Extensions for JavaScript main library used to express complex event processing queries over observable sequences.
Fody extension to generate RaisePropertyChange notifications for properties and ObservableAsPropertyHelper properties.