Top 20 NuGet headless Packages

Headless Chrome .NET API
AngleSharp is the ultimate angle brackets parser library. It parses HTML5, CSS3, and XML to construct a DOM based on the official W3C specification.
The official .NET SDK for interacting with the OrderClould.io platform. OrderCloud.io is a cloud-hosted headless B2B eCommerce platform.
Allows you to automate SimpleBrowser, the C# headless browser from code using Selenium webDriver. SimpleBrowser is a lightweight, yet highly capable browser automation engine designed for automation and testing scenarios.
SimpleBrowser is a lightweight, yet highly capable browser automation engine designed for automation and testing scenarios.
PhantomJS is a headless WebKit scriptable with a JavaScript API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas, and SVG.
NReco.PhantomJS is a .NET wrapper for running PhantomJS (headless WebKit browser) from C#/.NET code.
Package contains headless content API for Kaliko CMS - an open-source content management system. You'll find information on how to get started over at: http://kaliko.com/cms/get-started/
Optimus is headless Web Browser fully implemented on .net.
Companion library for UmbracoCMS.Core.CleanApi - All the Power of UmbracoCMS without the debris of the FULL Umbraco CMS
A library that enables you to use Episerver as a headless API, without Find.
Wrapper for Api2Pdf.com - instantly generate PDFs from HTML, URLs or office documents. Also includes support for merge. Wrapper around wkhtmltopdf, headless chrome, and libre office.
dcsoup is a .NET library for working with real-world HTML. It provides a very convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods. This library is basically a port of jsoup, a Java HTML parser library. see also: http://jsoup.org/ API reference is ...
NHtmlUnit is a .NET wrapper of HtmlUnit; a "GUI-less browser for Java programs". It allows you to write code to test web applications with a headless, automated browser.
SlimerJS is similar to PhantomJs, except that it runs on top of Gecko, the browser engine of Mozilla Firefox (specifically, version 31), instead of Webkit https://slimerjs.org/features.html
yslow.js library to run in Phantomjs
A dynamic driver for running Zombie.js from .NET - insanely fast, headless browser testing now available for .NET. ZOMBIES NOT INCLUDED - check out the "zombie.js" package if you don't have Zombie.js installed.
Provides a proxy that adds NTLM data for the current user, for use on systems requiring NTLM
A pre-built Windows version of Zombie.js. This package adds a node_modules folder at the top-level of the solution containing the all of the modules required to run Zombie.js.
A web browser replacement for testing websites without the browser overhead.