// @nuget: HtmlAgilityPack
using System;
using System.Xml;
using HtmlAgilityPack;
public class Program
{
public static void Main()
var html =@"<p id=""demo"">hello </p>";
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(html);
Console.WriteLine(htmlDoc.DocumentNode.InnerText);
}