Top 20 NuGet language Packages

AngleSharp is the ultimate angle brackets parser library. It parses HTML5, CSS3, and XML to construct a DOM based on the official W3C specification.
This library uses and abuses the features of C# to provide a functional 'Base class library', that, if you squint, can look like extensions to the language itself.
This library contains a runtime environment for executing HL7 FhirPath queries and invariants. It is used by the HL7 .NET FHIR API to run validation for the HL7 FHIR object model.
DotLiquid is a templating system ported to the .NET framework from Ruby’s Liquid Markup.
Visual Studio client side APIs for interacting with a Language Server Protocol enabled server.
.Net (C#) Binding for Rosette API
Google Places, Maps, Roads, Search and Translate. Requests and Responses are complete with Google api documentation and references.
A lightweight, fast, and flexible parsing library for C#, developed at Stack Overflow.
Primitives for working with JsonRpc. This library is used as the base for communication with language servers
You can use this package to create a language server, that will be consumed by many clients
You can use this package to interact with a Language Server using the language server protocol
Language Server Protocol models, classes, interfaces and helper methods
You can use this package to test a language server protocol client or server
You can use this package to test a debug adapter protocol client or server
Design and build-time code-gen for records, unions, lenses and immutable With functions
This is a DotLiquid variant for the ZKWeb project. DotLiquid is a templating system ported to the .NET framework from Ruby’s Liquid Markup.
Collection of tag helpers for ASP.NET Core web applications, like Paging, SelectEnum and LanguageNav dropdown tag helpers for MVC and Razor Pages.
You can use this package to create a debug adapter, that will be consumed by many clients
You can use this package to interact with a Debug Adapter using the debug adapter protocol
Support for Reactive Extensions overloads for various types in the LanguageExt.Core