Convert Text file to HTML file
in C# and VB.Net.

Complete code

using System;
using System.IO;
using System.Text;

namespace Sample
    class sample
        static void Main(string[] args)
            string inpFile = @"..\..\example.txt";
            string outFile = @"Result.html";

            SautinSoft.RtfToHtml r = new SautinSoft.RtfToHtml();

            // Specify some properties for output HTML document.
            r.OutputFormat = SautinSoft.RtfToHtml.eOutputFormat.HTML_5;
            r.Encoding = SautinSoft.RtfToHtml.eEncoding.UTF_8;
			r.TextStyle.Title = "Textual document.";


                // Open the result for demonstration purposes.
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile)
                { UseShellExecute = true });
            catch (Exception e)
                Console.WriteLine($"Error: {e.Message}");
                Console.WriteLine("Press any key ...");


            Imports System
Imports System.IO
Imports System.Text

Namespace Sample
    Friend Class sample
        Shared Sub Main(ByVal args() As String)
            Dim inpFile As String = "..\..\example.txt"
            Dim outFile As String = "Result.html"

            Dim r As New SautinSoft.RtfToHtml()

            ' Specify some properties for output HTML document.
            r.OutputFormat = SautinSoft.RtfToHtml.eOutputFormat.HTML_5
            r.Encoding = SautinSoft.RtfToHtml.eEncoding.UTF_8
            r.TextStyle.Title = "Textual document."


                ' Open the result for demonstration purposes.
                System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
            Catch e As Exception
                Console.WriteLine($"Error: {e.Message}")
                Console.WriteLine("Press any key ...")
            End Try
        End Sub
    End Class
End Namespace


If you are looking also for a .Net solution to Create or Modify HTML documents, see our Document .Net.

If you need a new code example or have a question: email us at or ask at Online Chat (right-bottom corner of this page) or use the Form below:

Questions and suggestions from you are always welcome!

We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.