diff --git a/src/Verify.Tests/VerifyDirectoryTests.cs b/src/Verify.Tests/VerifyDirectoryTests.cs
index 7d7cff9fb..336c3243d 100644
--- a/src/Verify.Tests/VerifyDirectoryTests.cs
+++ b/src/Verify.Tests/VerifyDirectoryTests.cs
@@ -1,6 +1,20 @@
 public class VerifyDirectoryTests
 {
     static string directoryPathToVerify = Path.Combine(AttributeReader.GetSolutionDirectory(), "ToVerify");
+#if NET8_0_OR_GREATER
+
+#region AddTextFileConvention
+    [ModuleInitializer]
+    public static void InitTextFileConvention() =>
+        FileExtensions.AddTextFileConvention(
+            path =>
+            {
+                var name = Path.GetFileName(path);
+                return name.Equals("TextDocWithoutExtension", StringComparison.OrdinalIgnoreCase);
+            });
+#endregion
+
+#endif
 
     [Fact]
     public Task WithDirectory() =>
diff --git a/src/Verify/FilePair.cs b/src/Verify/FilePair.cs
index 04181f618..8f82d4331 100644
--- a/src/Verify/FilePair.cs
+++ b/src/Verify/FilePair.cs
@@ -11,6 +11,15 @@ public FilePair(string extension, string receivedPath, string verifiedPath)
         IsText = FileExtensions.IsTextExtension(extension);
     }
 
+    public FilePair(string extension, string receivedPath, string verifiedPath, bool isText)
+    {
+        Guards.AgainstBadExtension(extension);
+        Extension = extension;
+        ReceivedPath = receivedPath;
+        VerifiedPath = verifiedPath;
+        IsText = isText;
+    }
+
     public string Extension { get; }
     public string ReceivedPath { get; }
     public string VerifiedPath { get; }
diff --git a/src/Verify/Target.cs b/src/Verify/Target.cs
index dcd86c189..36979cbd1 100644
--- a/src/Verify/Target.cs
+++ b/src/Verify/Target.cs
@@ -58,17 +58,8 @@ public Target(string extension, Stream data, string? name = null)
 
     public Target(string extension, StringBuilder data, string? name = null)
     {
-        Guards.AgainstBadExtension(extension);
         Guard.NotEmpty(name);
-        if (!FileExtensions.IsTextExtension(extension))
-        {
-            throw new(
-                $"""
-                 Don't pass text for a binary extension.
-                 If {extension} is a text extension then use `FileExtensions.AddTextExtension("{extension}")` at initialization;
-                 Otherwise use `Target(string extension, Stream data, string? name)`.
-                 """);
-        }
+        ValidateExtension(extension);
 
         Extension = extension;
         Name = name;
@@ -76,20 +67,28 @@ public Target(string extension, StringBuilder data, string? name = null)
         stringBuilderData = data;
     }
 
-    public Target(string extension, string data, string? name = null)
+    static void ValidateExtension(string extension)
     {
         Guards.AgainstBadExtension(extension);
-        Guard.NotEmpty(name, nameof(name));
-        if (!FileExtensions.IsTextExtension(extension))
+        if (extension == "noextension" ||
+            FileExtensions.IsTextExtension(extension))
         {
-            throw new(
-                $"""
-                 Don't pass a text for a binary extension.
-                 If {extension} is a text extension then use `FileExtensions.AddTextExtension("{extension}")` at initialization;
-                 Otherwise use `Target(string extension, Stream data, string? name)`.
-                 """);
+            return;
         }
 
+        throw new(
+            $"""
+             Don't pass text for a binary extension.
+             If {extension} is a text extension then use `FileExtensions.AddTextExtension("{extension}")` at initialization;
+             Otherwise use `Target(string extension, Stream data, string? name)`.
+             """);
+    }
+
+    public Target(string extension, string data, string? name = null)
+    {
+        Guard.NotEmpty(name, nameof(name));
+        ValidateExtension(extension);
+
         Extension = extension;
         Name = name;
         stringBuilderData = new(data);
diff --git a/src/Verify/Verifier/InnerVerifier.cs b/src/Verify/Verifier/InnerVerifier.cs
index 023aa32c2..c54a3f304 100644
--- a/src/Verify/Verifier/InnerVerifier.cs
+++ b/src/Verify/Verifier/InnerVerifier.cs
@@ -135,7 +135,8 @@ public InnerVerifier(string directory, string name, VerifySettings? settings = n
             new(
                 target.Extension,
                 $"{prefix}.received.{target.Extension}",
-                $"{prefix}.verified.{target.Extension}");
+                $"{prefix}.verified.{target.Extension}",
+                target.IsString);
 
         getIndexedFileNames = (target, index) =>
         {
@@ -144,13 +145,15 @@ public InnerVerifier(string directory, string name, VerifySettings? settings = n
                 return new(
                     target.Extension,
                     $"{prefix}#{index}.received.{target.Extension}",
-                    $"{prefix}#{index}.verified.{target.Extension}");
+                    $"{prefix}#{index}.verified.{target.Extension}",
+                    target.IsString);
             }
 
             return new(
                 target.Extension,
                 $"{prefix}#{target.Name}.{index}.received.{target.Extension}",
-                $"{prefix}#{target.Name}.{index}.verified.{target.Extension}");
+                $"{prefix}#{target.Name}.{index}.verified.{target.Extension}",
+                target.IsString);
         };
     }
 
@@ -185,7 +188,8 @@ void InitForDirectoryConvention(Namer namer, string typeAndMethod, string verifi
                 return new(
                     target.Extension,
                     Path.Combine(receivedDirectory, fileName),
-                    Path.Combine(verifiedDirectory, fileName));
+                    Path.Combine(verifiedDirectory, fileName),
+                    target.IsString);
             };
             getIndexedFileNames = (target, index) =>
             {
@@ -193,7 +197,8 @@ void InitForDirectoryConvention(Namer namer, string typeAndMethod, string verifi
                 return new(
                     target.Extension,
                     Path.Combine(receivedDirectory, fileName),
-                    Path.Combine(verifiedDirectory, fileName));
+                    Path.Combine(verifiedDirectory, fileName),
+                    target.IsString);
             };
 
             IoHelpers.DeleteDirectory(receivedDirectory);
@@ -207,12 +212,14 @@ void InitForDirectoryConvention(Namer namer, string typeAndMethod, string verifi
                 new(
                     target.Extension,
                     Path.Combine(directoryPrefix, $"{target.NameOrTarget}.received.{target.Extension}"),
-                    Path.Combine(directoryPrefix, $"{target.NameOrTarget}.verified.{target.Extension}"));
+                    Path.Combine(directoryPrefix, $"{target.NameOrTarget}.verified.{target.Extension}"),
+                    target.IsString);
             getIndexedFileNames = (target, index) =>
                 new(
                     target.Extension,
                     Path.Combine(directoryPrefix, $"{target.NameOrTarget}#{index}.received.{target.Extension}"),
-                    Path.Combine(directoryPrefix, $"{target.NameOrTarget}#{index}.verified.{target.Extension}"));
+                    Path.Combine(directoryPrefix, $"{target.NameOrTarget}#{index}.verified.{target.Extension}"),
+                    target.IsString);
 
             IoHelpers.DeleteFiles(directoryPrefix, "*.received.*");
         }
@@ -257,13 +264,15 @@ void InitForFileConvention(Namer namer, string typeAndMethod, string receivedPar
                 return new(
                     target.Extension,
                     $"{pathPrefixReceived}.received.{target.Extension}",
-                    $"{pathPrefixVerified}.verified.{target.Extension}");
+                    $"{pathPrefixVerified}.verified.{target.Extension}",
+                    target.IsString);
             }
 
             return new(
                 target.Extension,
                 $"{pathPrefixReceived}#{target.Name}.received.{target.Extension}",
-                $"{pathPrefixVerified}#{target.Name}.verified.{target.Extension}");
+                $"{pathPrefixVerified}#{target.Name}.verified.{target.Extension}",
+                target.IsString);
         };
         getIndexedFileNames = (target, index) =>
         {
@@ -272,13 +281,15 @@ void InitForFileConvention(Namer namer, string typeAndMethod, string receivedPar
                 return new(
                     target.Extension,
                     $"{pathPrefixReceived}#{index}.received.{target.Extension}",
-                    $"{pathPrefixVerified}#{index}.verified.{target.Extension}");
+                    $"{pathPrefixVerified}#{index}.verified.{target.Extension}",
+                    target.IsString);
             }
 
             return new(
                 target.Extension,
                 $"{pathPrefixReceived}#{target.Name}.{index}.received.{target.Extension}",
-                $"{pathPrefixVerified}#{target.Name}.{index}.verified.{target.Extension}");
+                $"{pathPrefixVerified}#{target.Name}.{index}.verified.{target.Extension}",
+                target.IsString);
         };
 
         MatchingFileFinder.DeleteReceived(receivedPrefix, directory);
diff --git a/src/Verify/Verifier/VerifyEngine.cs b/src/Verify/Verifier/VerifyEngine.cs
index d6e219d12..0dea0e3a2 100644
--- a/src/Verify/Verifier/VerifyEngine.cs
+++ b/src/Verify/Verifier/VerifyEngine.cs
@@ -252,7 +252,14 @@ async Task<bool> RunDiffAutoCheck(FilePair file, bool autoVerify)
 
         if (diffEnabled)
         {
-            await DiffRunner.LaunchAsync(file.ReceivedPath, file.VerifiedPath, VerifierSettings.Encoding);
+            if (file.IsText)
+            {
+                await DiffRunner.LaunchForTextAsync(file.ReceivedPath, file.VerifiedPath, VerifierSettings.Encoding);
+            }
+            else
+            {
+                await DiffRunner.LaunchAsync(file.ReceivedPath, file.VerifiedPath, VerifierSettings.Encoding);
+            }
         }
 
         return autoVerify;