diff --git a/JsonCanonicalizer.BL/Canonicalizer.cs b/JsonCanonicalizer.BL/Canonicalizer.cs
index 14f6a69..c09fb3e 100644
--- a/JsonCanonicalizer.BL/Canonicalizer.cs
+++ b/JsonCanonicalizer.BL/Canonicalizer.cs
@@ -1,10 +1,25 @@
-using System.Runtime.Serialization;
-using System.Text.Json;
+using System.Text.Json;
 
 namespace JsonCanonicalizer.BL;
 
 public class Canonicalizer
 {
+    public static void Canonicalize(Stream from, Stream to)
+    {
+        using var doc = JsonDocument.Parse(from);
+
+        var writerOptions = new JsonWriterOptions
+        {
+            Indented = true,
+            Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping
+        };
+
+        using var writer = new Utf8JsonWriter(to, writerOptions);
+
+        WriteSorted(writer, doc.RootElement);
+        writer.Flush();
+    }
+
     public static void WriteSorted(Utf8JsonWriter writer, JsonElement element)
     {
         switch (element.ValueKind)
diff --git a/JsonCanonicalizer/Program.cs b/JsonCanonicalizer/Program.cs
index 3273ff0..c636e4a 100644
--- a/JsonCanonicalizer/Program.cs
+++ b/JsonCanonicalizer/Program.cs
@@ -1,27 +1,18 @@
-using System.Text.Json;
+using JsonCanonicalizer.BL;
+using System.Text.Json;
 
 namespace JsonCanonicalizer
 {
     class Program
     {
-        static int Main(string[] args)
+        static int Main(string[] _)
         {
             try
             {
                 using var inputStream = Console.OpenStandardInput();
-                using var doc = JsonDocument.Parse(inputStream);
-
-                var writerOptions = new JsonWriterOptions
-                {
-                    Indented = true,
-                    Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping
-                };
-
                 using var outputStream = Console.OpenStandardOutput();
-                using var writer = new Utf8JsonWriter(outputStream, writerOptions);
 
-                BL.Canonicalizer.WriteSorted(writer, doc.RootElement);
-                writer.Flush();
+                Canonicalizer.Canonicalize(inputStream, outputStream);
 
                 Console.Out.WriteLine();
                 return 0;