diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorDiagnosticFactory.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorDiagnosticFactory.cs
index 715a2447b3..bbf6f84b7b 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorDiagnosticFactory.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/BlazorDiagnosticFactory.cs
@@ -163,7 +163,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
         public static readonly RazorDiagnosticDescriptor BindAttribute_InvalidSyntax =
             new RazorDiagnosticDescriptor(
             "BL9991",
-            () => "The attribute names could not be inferred from bind attibute '{0}'. Bind attributes should be of the form" +
+            () => "The attribute names could not be inferred from bind attribute '{0}'. Bind attributes should be of the form" +
                 "'bind', 'bind-value' or 'bind-value-change'",
             RazorDiagnosticSeverity.Error);
 
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ChildContentDiagnosticPass.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ChildContentDiagnosticPass.cs
index d2f099c0c9..bdb5e37705 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ChildContentDiagnosticPass.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ChildContentDiagnosticPass.cs
@@ -43,7 +43,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
             public void VisitExtension(ComponentChildContentIntermediateNode node)
             {
                 // Check that each child content has a unique parameter name within its scope. This is important
-                // because the parameter name can be implict, and it doesn't work well when nested.
+                // because the parameter name can be implicit, and it doesn't work well when nested.
                 if (node.IsParameterized)
                 {
                     for (var i = 0; i < Ancestors.Count - 1; i++)
@@ -58,9 +58,9 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                             node.Diagnostics.Add(BlazorDiagnosticFactory.Create_ChildContentRepeatedParameterName(
                                 node.Source,
                                 node,
-                                (ComponentExtensionNode)Ancestors[0], // Encosing component
+                                (ComponentExtensionNode)Ancestors[0], // Enclosing component
                                 ancestor, // conflicting child content node
-                                (ComponentExtensionNode)Ancestors[i + 1]));  // Encosing component of conflicting child content node
+                                (ComponentExtensionNode)Ancestors[i + 1]));  // Enclosing component of conflicting child content node
                         }
                     }
                 }
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentDocumentRewritePass.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentDocumentRewritePass.cs
index 65f8ff77d9..81e7dfac54 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentDocumentRewritePass.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentDocumentRewritePass.cs
@@ -258,7 +258,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                                             // Happy path.
                                             //
                                             // We need to compute a new source span because when we found the start tag before we knew
-                                            // the end poosition of the tag.
+                                            // the end position of the tag.
                                             var length = end.AbsoluteIndex - popped.Source.Value.AbsoluteIndex;
                                             popped.Source = new SourceSpan(
                                                 popped.Source.Value.FilePath,
@@ -426,7 +426,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 // in the DOM, which can accept content that has decoded entities.
                 //
                 // In the event that we merge HtmlContent into an HtmlBlock, we need to
-                // re-encode the entites. That's done in the HtmlBlock pass.
+                // re-encode the entities. That's done in the HtmlBlock pass.
                 var tokens = _textSource.Tokenize(HtmlEntityService.Resolver);
                 return tokens;
             }
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentLoweringPass.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentLoweringPass.cs
index 34cd953c67..10eb13ece1 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentLoweringPass.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ComponentLoweringPass.cs
@@ -140,7 +140,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 //
                 // We don't want to create a child content for this case, because it can conflict
                 // with a child content that's set via an attribute. We don't want the formatting
-                // of insigificant whitespace to be annoying when setting attributes directly.
+                // of insignificant whitespace to be annoying when setting attributes directly.
                 if (node.Children.Count == 1 && IsIgnorableWhitespace(node.Children[0]))
                 {
                     return;
@@ -149,11 +149,11 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 // From here we fork and behave differently based on whether the component's child content is
                 // implicit or explicit.
                 //
-                // Explict child content will look like: <MyComponent><ChildContent><div>...</div></ChildContent></MyComponent>
+                // Explicit child content will look like: <MyComponent><ChildContent><div>...</div></ChildContent></MyComponent>
                 // compared with implicit: <MyComponent><div></div></MyComponent>
                 //
                 // Using implicit child content:
-                // 1. All content is grouped into a single child content lambda, and assiged to the property 'ChildContent'
+                // 1. All content is grouped into a single child content lambda, and assigned to the property 'ChildContent'
                 //
                 // Using explicit child content:
                 // 1. All content must be contained within 'child content' elements that are direct children
@@ -232,7 +232,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                     var child = children[i];
                     if (child is TagHelperBodyIntermediateNode body)
                     {
-                        // The body is all of the content we want to render, the rest of the childen will
+                        // The body is all of the content we want to render, the rest of the children will
                         // be the attributes.
                         for (var j = 0; j < body.Children.Count; j++)
                         {
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/EventHandlerTagHelperDescriptorProvider.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/EventHandlerTagHelperDescriptorProvider.cs
index ccb307d677..e5ef926c57 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/EventHandlerTagHelperDescriptorProvider.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/EventHandlerTagHelperDescriptorProvider.cs
@@ -117,7 +117,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 builder.Metadata[TagHelperMetadata.Runtime.Name] = BlazorMetadata.EventHandler.RuntimeName;
 
                 // WTE has a bug in 15.7p1 where a Tag Helper without a display-name that looks like
-                // a C# property will crash trying to create the toolips.
+                // a C# property will crash trying to create the tooltips.
                 builder.SetTypeName(entry.TypeName);
 
                 builder.TagMatchingRule(rule =>
@@ -148,7 +148,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                     a.Metadata.Add(BlazorMetadata.Component.WeaklyTypedKey, bool.TrueString);
 
                     // WTE has a bug 15.7p1 where a Tag Helper without a display-name that looks like
-                    // a C# property will crash trying to create the toolips.
+                    // a C# property will crash trying to create the tooltips.
                     a.SetPropertyName(entry.Attribute);
                 });
 
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/GenericComponentPass.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/GenericComponentPass.cs
index b0d9d881c8..f57bbe413d 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/GenericComponentPass.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/GenericComponentPass.cs
@@ -92,7 +92,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 // We need to verify that an argument was provided that 'covers' each type parameter.
                 //
                 // For example, consider a repeater where the generic type is the 'item' type, but the developer has
-                // not set the items. We won't be able to do type inference on this and so it will just be nonesense.
+                // not set the items. We won't be able to do type inference on this and so it will just be nonsense.
                 var attributes = node.Attributes.Select(a => a.BoundAttribute).Concat(node.ChildContents.Select(c => c.BoundAttribute));
                 foreach (var attribute in attributes)
                 {
@@ -139,7 +139,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                     node.Diagnostics.Add(BlazorDiagnosticFactory.Create_GenericComponentTypeInferenceUnderspecified(node.Source, node, node.Component.GetTypeParameters()));
                 }
 
-                // Next we need to generate a type inference 'method' node. This repesents a method that we will codegen that
+                // Next we need to generate a type inference 'method' node. This represents a method that we will codegen that
                 // contains all of the operations on the render tree building. Calling a method to operate on the builder
                 // will allow the C# compiler to perform type inference.
                 var documentNode = (DocumentIntermediateNode)Ancestors[Ancestors.Count - 1];
@@ -253,7 +253,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                     Bindings = bindings,
                     Component = node,
 
-                    // Method name is generated and guaraneteed not to collide, since it's unique for each
+                    // Method name is generated and guaranteed not to collide, since it's unique for each
                     // component call site.
                     MethodName = $"Create{node.TagName}_{_id++}",
                     FullTypeName = @namespace + ".TypeInference",
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/HtmlBlockPass.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/HtmlBlockPass.cs
index b0c9979f09..5481273f4d 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/HtmlBlockPass.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/HtmlBlockPass.cs
@@ -14,7 +14,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
     // Rewrites contiguous subtrees of HTML into a special node type to reduce the
     // size of the Render tree.
     //
-    // Does not preserve insigificant details of the HTML, like tag closing style
+    // Does not preserve insignificant details of the HTML, like tag closing style
     // or quote style.
     internal class HtmlBlockPass : IntermediateNodePassBase, IRazorOptimizationPass
     {
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/RefTagHelperDescriptorProvider.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/RefTagHelperDescriptorProvider.cs
index 49f0932123..9b7a4343d7 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/RefTagHelperDescriptorProvider.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/RefTagHelperDescriptorProvider.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNetCore.Blazor.Shared;
@@ -33,7 +33,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
             builder.Metadata[TagHelperMetadata.Runtime.Name] = BlazorMetadata.Ref.RuntimeName;
 
             // WTE has a bug in 15.7p1 where a Tag Helper without a display-name that looks like
-            // a C# property will crash trying to create the toolips.
+            // a C# property will crash trying to create the tooltips.
             builder.SetTypeName("Microsoft.AspNetCore.Blazor.Components.Ref");
 
             builder.TagMatchingRule(rule =>
@@ -51,7 +51,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 attribute.Name = "ref";
 
                 // WTE has a bug 15.7p1 where a Tag Helper without a display-name that looks like
-                // a C# property will crash trying to create the toolips.
+                // a C# property will crash trying to create the tooltips.
                 attribute.SetPropertyName("Ref");
                 attribute.TypeName = typeof(object).FullName;
             });
diff --git a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ScriptTagPass.cs b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ScriptTagPass.cs
index 937a5e9ec6..4e5c29abe7 100644
--- a/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ScriptTagPass.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Razor.Extensions/ScriptTagPass.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -39,7 +39,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
                 {
                     for (var i = 0; i < node.Children.Count; i++)
                     {
-                        // We allow you to supress this error like:
+                        // We allow you to suppress this error like:
                         // <script suppress-error="BL9992" />
                         var attribute = node.Children[i] as HtmlAttributeIntermediateNode;
                         if (attribute != null && 
diff --git a/src/Microsoft.AspNetCore.Blazor.Server/AutoRebuild/AutoRebuildExtensions.cs b/src/Microsoft.AspNetCore.Blazor.Server/AutoRebuild/AutoRebuildExtensions.cs
index 89b8828bd0..78d71d1e00 100644
--- a/src/Microsoft.AspNetCore.Blazor.Server/AutoRebuild/AutoRebuildExtensions.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Server/AutoRebuild/AutoRebuildExtensions.cs
@@ -150,7 +150,7 @@ namespace Microsoft.AspNetCore.Builder
 
                 if (!_includedSuffixes.Any(ext => eventArgs.Name.EndsWith(ext, StringComparison.OrdinalIgnoreCase)))
                 {
-                    // Not a candiate file type
+                    // Not a candidate file type
                     return;
                 }
 
diff --git a/src/Microsoft.AspNetCore.Blazor.Server/Circuits/RemoteUriHelper.cs b/src/Microsoft.AspNetCore.Blazor.Server/Circuits/RemoteUriHelper.cs
index 6a63896fc2..bc82b039b2 100644
--- a/src/Microsoft.AspNetCore.Blazor.Server/Circuits/RemoteUriHelper.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Server/Circuits/RemoteUriHelper.cs
@@ -10,7 +10,7 @@ using Interop = Microsoft.AspNetCore.Blazor.Browser.Services.BrowserUriHelperInt
 namespace Microsoft.AspNetCore.Blazor.Server.Circuits
 {
     /// <summary>
-    /// A Server-Side Blazor implemenation of <see cref="IUriHelper"/>.
+    /// A Server-Side Blazor implementation of <see cref="IUriHelper"/>.
     /// </summary>
     public class RemoteUriHelper : UriHelperBase
     {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/FilePathRazorIntegrationTest.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/FilePathRazorIntegrationTest.cs
index 755a56e049..750d9f50a1 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/FilePathRazorIntegrationTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/FilePathRazorIntegrationTest.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.IO;
@@ -10,7 +10,7 @@ namespace Microsoft.AspNetCore.Blazor.Build.Test
     public class FilePathRazorIntegrationTest : RazorIntegrationTestBase
     {
         [Fact]
-        public void FileNameIsInvalidClasName_SanitizesInvalidClassName()
+        public void FileNameIsInvalidClassName_SanitizesInvalidClassName()
         {
             // Arrange
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/Razor/InitializeTestFileAttribute.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/Razor/InitializeTestFileAttribute.cs
index c4bb636f35..ac5b99ca33 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/Razor/InitializeTestFileAttribute.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/Razor/InitializeTestFileAttribute.cs
@@ -7,7 +7,7 @@ using Xunit.Sdk;
 
 namespace Microsoft.AspNetCore.Razor.Language.IntegrationTests
 {
-    public class IntializeTestFileAttribute : BeforeAfterTestAttribute
+    public class InitializeTestFileAttribute : BeforeAfterTestAttribute
     {
         public override void Before(MethodInfo methodUnderTest)
         {
diff --git a/test/Microsoft.AspNetCore.Blazor.Build.Test/RazorBaselineIntegrationTestBase.cs b/test/Microsoft.AspNetCore.Blazor.Build.Test/RazorBaselineIntegrationTestBase.cs
index 69098aad9c..f7a94eb697 100644
--- a/test/Microsoft.AspNetCore.Blazor.Build.Test/RazorBaselineIntegrationTestBase.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Build.Test/RazorBaselineIntegrationTestBase.cs
@@ -12,7 +12,7 @@ using Xunit.Sdk;
 
 namespace Microsoft.AspNetCore.Blazor.Build.Test
 {
-    [IntializeTestFile]
+    [InitializeTestFile]
     public abstract class RazorBaselineIntegrationTestBase : RazorIntegrationTestBase
     {
         private static readonly AsyncLocal<string> _directoryPath = new AsyncLocal<string>();
@@ -198,7 +198,7 @@ namespace Microsoft.AspNetCore.Blazor.Build.Test
             using (var writer = new StreamWriter(File.Open(filePath, FileMode.Create)))
             {
                 // Force windows-style line endings so that we're consistent. This isn't
-                // required for correctness, but will prevent churcn when developing on OSX.
+                // required for correctness, but will prevent churn when developing on OSX.
                 writer.NewLine = "\r\n";
 
                 for (var i = 0; i < lines.Length; i++)
diff --git a/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/BindTagHelperDescriptorProviderTest.cs b/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/BindTagHelperDescriptorProviderTest.cs
index 4aeb4aad49..e0b4274a2a 100644
--- a/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/BindTagHelperDescriptorProviderTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/BindTagHelperDescriptorProviderTest.cs
@@ -11,7 +11,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
     public class BindTagHelperDescriptorProviderTest : BaseTagHelperDescriptorProviderTest
     {
         [Fact]
-        public void Excecute_FindsBindTagHelperOnComponentType_CreatesDescriptor()
+        public void Execute_FindsBindTagHelperOnComponentType_CreatesDescriptor()
         {
             // Arrange
             var compilation = BaseCompilation.AddSyntaxTrees(Parse(@"
@@ -75,7 +75,7 @@ namespace Test
                     "delegate to the 'MyPropertyChanged' property of the component.",
                 bind.Documentation);
 
-            // These are all trivally derived from the assembly/namespace/type name
+            // These are all trivially derived from the assembly/namespace/type name
             Assert.Equal("TestAssembly", bind.AssemblyName);
             Assert.Equal("Test.MyComponent", bind.Name);
             Assert.Equal("Test.MyComponent", bind.DisplayName);
@@ -126,7 +126,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_NoMatchedPropertiesOnComponent_IgnoresComponent()
+        public void Execute_NoMatchedPropertiesOnComponent_IgnoresComponent()
         {
             // Arrange
             var compilation = BaseCompilation.AddSyntaxTrees(Parse(@"
@@ -168,7 +168,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_BindOnElement_CreatesDescriptor()
+        public void Execute_BindOnElement_CreatesDescriptor()
         {
             // Arrange
             var compilation = BaseCompilation.AddSyntaxTrees(Parse(@"
@@ -221,7 +221,7 @@ namespace Test
                     "delegate to the 'myevent' attribute.",
                 bind.Documentation);
 
-            // These are all trivally derived from the assembly/namespace/type name
+            // These are all trivially derived from the assembly/namespace/type name
             Assert.Equal("TestAssembly", bind.AssemblyName);
             Assert.Equal("Bind", bind.Name);
             Assert.Equal("Test.BindAttributes", bind.DisplayName);
@@ -544,7 +544,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_BindFallback_CreatesDescriptor()
+        public void Execute_BindFallback_CreatesDescriptor()
         {
             // Arrange
             var compilation = BaseCompilation;
@@ -586,7 +586,7 @@ namespace Test
                     "to set the value to the 'onchange' attribute.",
                 bind.Documentation);
 
-            // These are all trivally derived from the assembly/namespace/type name
+            // These are all trivially derived from the assembly/namespace/type name
             Assert.Equal("Microsoft.AspNetCore.Blazor", bind.AssemblyName);
             Assert.Equal("Bind", bind.Name);
             Assert.Equal("Microsoft.AspNetCore.Blazor.Components.Bind", bind.DisplayName);
diff --git a/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/ComponentTagHelperDescriptorProviderTest.cs b/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/ComponentTagHelperDescriptorProviderTest.cs
index ad643ef002..a5a404bcf2 100644
--- a/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/ComponentTagHelperDescriptorProviderTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/ComponentTagHelperDescriptorProviderTest.cs
@@ -11,7 +11,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
     public class ComponentTagHelperDescriptorProviderTest : BaseTagHelperDescriptorProviderTest
     {
         [Fact]
-        public void Excecute_FindsIComponentType_CreatesDescriptor()
+        public void Execute_FindsIComponentType_CreatesDescriptor()
         {
             // Arrange
 
@@ -125,7 +125,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_FindsIComponentType_CreatesDescriptor_Generic()
+        public void Execute_FindsIComponentType_CreatesDescriptor_Generic()
         {
             // Arrange
 
@@ -192,7 +192,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_FindsBlazorComponentType_CreatesDescriptor()
+        public void Execute_FindsBlazorComponentType_CreatesDescriptor()
         {
             // Arrange
 
@@ -233,7 +233,7 @@ namespace Test
         }
 
         [Fact] // bool properties support minimized attributes
-        public void Excecute_BoolProperty_CreatesDescriptor()
+        public void Execute_BoolProperty_CreatesDescriptor()
         {
             // Arrange
 
@@ -279,7 +279,7 @@ namespace Test
         }
 
         [Fact] // enum properties have some special intellisense behavior
-        public void Excecute_EnumProperty_CreatesDescriptor()
+        public void Execute_EnumProperty_CreatesDescriptor()
         {
             // Arrange
 
@@ -331,7 +331,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_GenericProperty_CreatesDescriptor()
+        public void Execute_GenericProperty_CreatesDescriptor()
         {
             // Arrange
 
@@ -388,7 +388,7 @@ namespace Test
         }
 
         [Fact]
-        public void Excecute_MultipleGenerics_CreatesDescriptor()
+        public void Execute_MultipleGenerics_CreatesDescriptor()
         {
             // Arrange
 
diff --git a/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/EventHandlerTagHelperDescriptorProviderTest.cs b/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/EventHandlerTagHelperDescriptorProviderTest.cs
index 4c0344202a..c257e5aefd 100644
--- a/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/EventHandlerTagHelperDescriptorProviderTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Razor.Extensions.Test/EventHandlerTagHelperDescriptorProviderTest.cs
@@ -12,7 +12,7 @@ namespace Microsoft.AspNetCore.Blazor.Razor
     public class EventHandlerTagHelperDescriptorProviderTest : BaseTagHelperDescriptorProviderTest
     {
         [Fact]
-        public void Excecute_EventHandler_CreatesDescriptor()
+        public void Execute_EventHandler_CreatesDescriptor()
         {
             // Arrange
             var compilation = BaseCompilation.AddSyntaxTrees(Parse(@"
@@ -62,7 +62,7 @@ namespace Test
                 "A delegate value should be of type 'System.Action<Microsoft.AspNetCore.Blazor.UIMouseEventArgs>'.",
                 item.Documentation);
 
-            // These are all trivally derived from the assembly/namespace/type name
+            // These are all trivially derived from the assembly/namespace/type name
             Assert.Equal("TestAssembly", item.AssemblyName);
             Assert.Equal("onclick", item.Name);
             Assert.Equal("Test.EventHandlers", item.DisplayName);
diff --git a/test/Microsoft.AspNetCore.Blazor.Test/RenderTreeDiffBuilderTest.cs b/test/Microsoft.AspNetCore.Blazor.Test/RenderTreeDiffBuilderTest.cs
index 7d2bb2923b..0912456450 100644
--- a/test/Microsoft.AspNetCore.Blazor.Test/RenderTreeDiffBuilderTest.cs
+++ b/test/Microsoft.AspNetCore.Blazor.Test/RenderTreeDiffBuilderTest.cs
@@ -1268,7 +1268,7 @@ namespace Microsoft.AspNetCore.Blazor.Test
             var newComponentInstance = (FakeComponent)oldTree.GetFrames().Array[0].Component;
 
             // Assert
-            Assert.Equal(1, renderBatch.UpdatedComponents.Count); // Because the diff builder only queues child component renders; it doesn't actually perfom them itself
+            Assert.Equal(1, renderBatch.UpdatedComponents.Count); // Because the diff builder only queues child component renders; it doesn't actually perform them itself
             Assert.Same(originalComponentInstance, newComponentInstance);
             Assert.Equal("String did change", newComponentInstance.StringProperty);
             Assert.Same(objectWillNotChange, newComponentInstance.ObjectProperty);
diff --git a/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/CircuitSynchronizationContextTest.cs b/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/CircuitSynchronizationContextTest.cs
index 74623f5507..89b9cad0e6 100644
--- a/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/CircuitSynchronizationContextTest.cs
+++ b/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/CircuitSynchronizationContextTest.cs
@@ -278,7 +278,7 @@ namespace Microsoft.AspNetCore.Blazor.Server
         }
 
         [Fact]
-        public void Send_CanRunSynchonously()
+        public void Send_CanRunSynchronously()
         {
             // Arrange
             var context = new CircuitSynchronizationContext();
diff --git a/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/RenderBatchWriterTest.cs b/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/RenderBatchWriterTest.cs
index cbdb156fe3..76cc14e2ad 100644
--- a/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/RenderBatchWriterTest.cs
+++ b/test/Microsoft.AspnetCore.Blazor.Server.Test/Circuits/RenderBatchWriterTest.cs
@@ -213,7 +213,7 @@ namespace Microsoft.AspNetCore.Blazor.Server
 
                     // Testing deduplication
                     RenderTreeFrame.Attribute(134, "Attribute with string value", "String value"),
-                    RenderTreeFrame.Element(135, "Some element") // Will be dedupliated
+                    RenderTreeFrame.Element(135, "Some element") // Will be deduplicated
                         .WithElementSubtreeLength(999),
                     RenderTreeFrame.Text(136, "Some text"), // Will not be deduplicated
                     RenderTreeFrame.Markup(137, "Some markup"), // Will not be deduplicated
diff --git a/test/testapps/BasicTestApp/BindCasesComponent.cshtml b/test/testapps/BasicTestApp/BindCasesComponent.cshtml
index 9082e18680..91dd1fc786 100644
--- a/test/testapps/BasicTestApp/BindCasesComponent.cshtml
+++ b/test/testapps/BasicTestApp/BindCasesComponent.cshtml
@@ -1,4 +1,4 @@
-<h2>Textbox</h2>
+<h2>Textbox</h2>
 <p>
     Initially blank:
     <input id="textbox-initially-blank" bind="textboxInitiallyBlankValue" />
@@ -49,13 +49,13 @@
 <h2>Text Area</h2>
 <p>
     Initially blank:
-    <textarea id="textarea-initially-blank" bind="textAreaIntiallyBlankValue"></textarea>
-    <span id="textarea-initially-blank-value">@textAreaIntiallyBlankValue</span>
+    <textarea id="textarea-initially-blank" bind="textAreaInitiallyBlankValue"></textarea>
+    <span id="textarea-initially-blank-value">@textAreaInitiallyBlankValue</span>
 </p>
 <p>
     Initially populated:
-    <textarea id="textarea-initially-populated" bind="textAreaIntiallyPopulatedValue"></textarea>
-    <span id="textarea-initially-populated-value">@textAreaIntiallyPopulatedValue</span>
+    <textarea id="textarea-initially-populated" bind="textAreaInitiallyPopulatedValue"></textarea>
+    <span id="textarea-initially-populated-value">@textAreaInitiallyPopulatedValue</span>
 </p>
 
 <h2>Checkbox</h2>
@@ -91,8 +91,8 @@
     string textboxInitiallyBlankValue = null;
     string textboxInitiallyPopulatedValue = "Hello";
 
-    string textAreaIntiallyBlankValue = null;
-    string textAreaIntiallyPopulatedValue = "Hello";
+    string textAreaInitiallyBlankValue = null;
+    string textAreaInitiallyPopulatedValue = "Hello";
 
     bool checkboxInitiallyUncheckedValue = false;
     bool checkboxInitiallyCheckedValue = true;
diff --git a/test/testapps/BasicTestApp/Startup.cs b/test/testapps/BasicTestApp/Startup.cs
index 2819c16546..800e7f4c92 100644
--- a/test/testapps/BasicTestApp/Startup.cs
+++ b/test/testapps/BasicTestApp/Startup.cs
@@ -21,7 +21,7 @@ namespace BasicTestApp
             if (RuntimeInformation.IsOSPlatform(OSPlatform.Create("WEBASSEMBLY")))
             {
                 // Needed because the test server runs on a different port than the client app,
-                // and we want to test sending/receiving cookies undering this config
+                // and we want to test sending/receiving cookies underling this config
                 BrowserHttpMessageHandler.DefaultCredentials = FetchCredentialsOption.Include;
 
                 GC.KeepAlive(ActivateMonoJSRuntime.EnsureActivated());