How to Convert a Stream to Byte Array in C# 4.0 ?

Published on December 30, 2013 by Senthil Kumar

Filed under C#

Last modified December 30, 2013

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One of the simplest way to convert a stream to byte array in C# 4.0 is to use the MemoryStream and perform the CopyTo operation on the source stream to the Memory Stream.

How to Convert a Stream to Byte Array in C# 4.0 ?

Below is a sample code snippet on how to convert a stream to byte array in C# 4.0.

using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
namespace AbundantCode
    internal class Program
        private static void Main(string[] args)
            Stream InputStream = null; // Get the input value from the file/other source
            byte[] result;
            using (var streamReader = new MemoryStream())
                result = streamReader.ToArray();


  1. Pankaj Nikam

    We can just use MemoryStream ms = new MemoryStream(bytes); Where bytes is byte array.

    June 30, 2015 - 11:08 am – Reply

  2. Gerson

    Thank you. It’s what I was looking for!

    March 24, 2017 - 1:00 am – Reply

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