diff --git a/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs b/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs
index a973cbc41..964dcf931 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs
@@ -887,7 +887,7 @@ namespace UniGLTF
                 }
             }
 
-            // Create or upate Main Asset
+            // Create or update Main Asset
             if (prefabPath.IsFileExists)
             {
                 Debug.LogFormat("replace prefab: {0}", prefabPath);
@@ -1012,7 +1012,7 @@ namespace UniGLTF
         }
 
         /// <summary>
-        /// Destroy assets that created ImporterContext. This function is clean up for imoprter error.
+        /// Destroy assets that created ImporterContext. This function is clean up for importer error.
         /// </summary>
         public void EditorDestroyRootAndAssets()
         {
diff --git a/Assets/VRM/UniGLTF/Scripts/IO/MaterialImporter.cs b/Assets/VRM/UniGLTF/Scripts/IO/MaterialImporter.cs
index 31db25670..7ee5008d4 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/MaterialImporter.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/MaterialImporter.cs
@@ -37,7 +37,7 @@ namespace UniGLTF
             Transparent
         }
 
-        /// StandardShader vaiables
+        /// StandardShader variables
         ///
         /// _Color
         /// _MainTex
@@ -70,7 +70,7 @@ namespace UniGLTF
             //Debug.LogFormat("[{0}]{1}", i, shader.name);
             var material = new Material(shader);
 #if UNITY_EDITOR
-            // textureImporter.SaveAndReimport(); may destory this material
+            // textureImporter.SaveAndReimport(); may destroy this material
             material.hideFlags = HideFlags.DontUnloadUnusedAsset;
 #endif
 
diff --git a/Assets/VRM/UniGLTF/Scripts/IO/MeshExporter.cs b/Assets/VRM/UniGLTF/Scripts/IO/MeshExporter.cs
index 56d9a326c..8ec4faf3b 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/MeshExporter.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/MeshExporter.cs
@@ -81,7 +81,7 @@ namespace UniGLTF
                 {
                     attributes = attributes,
                     indices = indicesAccessorIndex,
-                    mode = 4, // triangels ?
+                    mode = 4, // triangles ?
                     material = unityMaterials.IndexOf(materials[j])
                 });
             }
diff --git a/Assets/VRM/UniGLTF/Scripts/IO/NodeImporter.cs b/Assets/VRM/UniGLTF/Scripts/IO/NodeImporter.cs
index d84e6b4d4..7b8b245b6 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/NodeImporter.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/NodeImporter.cs
@@ -74,7 +74,7 @@ namespace UniGLTF
             };
 
             //
-            // build hierachy
+            // build hierarchy
             //
             var node = context.GLTF.nodes[i];
             if (node.children != null)
@@ -164,7 +164,7 @@ namespace UniGLTF
 
                     if (x.SkinIndex.Value < context.GLTF.skins.Count)
                     {
-                        // calculate internal values(boudingBox etc...) when sharedMesh assinged ?
+                        // calculate internal values(boundingBox etc...) when sharedMesh assigned ?
                         skinnedMeshRenderer.sharedMesh = null;
 
                         var skin = context.GLTF.skins[x.SkinIndex.Value];
diff --git a/Assets/VRM/UniHumanoid/Scripts/IO/BvhImporterContext.cs b/Assets/VRM/UniHumanoid/Scripts/IO/BvhImporterContext.cs
index c53955f26..9bab1d45b 100644
--- a/Assets/VRM/UniHumanoid/Scripts/IO/BvhImporterContext.cs
+++ b/Assets/VRM/UniHumanoid/Scripts/IO/BvhImporterContext.cs
@@ -212,7 +212,7 @@ namespace UniHumanoid
                 AssetDatabase.AddObjectToAsset(o, path);
             }
 
-            // Create or upate Main Asset
+            // Create or update Main Asset
             if (File.Exists(path))
             {
                 Debug.LogFormat("replace prefab: {0}", path);
diff --git a/Assets/VRM/UniHumanoid/Scripts/MuscleDebug.cs b/Assets/VRM/UniHumanoid/Scripts/MuscleDebug.cs
index d06603b4b..b03b9dd25 100644
--- a/Assets/VRM/UniHumanoid/Scripts/MuscleDebug.cs
+++ b/Assets/VRM/UniHumanoid/Scripts/MuscleDebug.cs
@@ -93,7 +93,7 @@ namespace UniHumanoid
             var nameProp = property.FindPropertyRelative("Name");
             var valueProp = property.FindPropertyRelative("Value");
             /*
-            var labl = string.Format("{0}: {1}", 
+            var label = string.Format("{0}: {1}", 
                 nameProp.stringValue, 
                 valueProp.floatValue
                 );
diff --git a/Assets/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNode.cs b/Assets/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNode.cs
index c3cc147ab..c32160382 100644
--- a/Assets/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNode.cs
+++ b/Assets/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNode.cs
@@ -247,7 +247,7 @@ namespace UniJSON
 
                 foreach (var kv in r)
                 {
-                    // Addded
+                    // Added
                     yield return JsonDiff.Create(kv.Value, JsonDiffType.KeyAdded, kv.Value.Value.ToString());
                 }
             }
diff --git a/Assets/VRM/UniJSON/Scripts/Utf8String/Utf8StringExtensions.cs b/Assets/VRM/UniJSON/Scripts/Utf8String/Utf8StringExtensions.cs
index b5f4ecf05..3372b703c 100644
--- a/Assets/VRM/UniJSON/Scripts/Utf8String/Utf8StringExtensions.cs
+++ b/Assets/VRM/UniJSON/Scripts/Utf8String/Utf8StringExtensions.cs
@@ -73,7 +73,7 @@ namespace UniJSON
                                 break;
 
                             default:
-                                // unkonw escape
+                                // unknown escape
                                 throw new ParserException("unknown escape: " + p.Second);
                         }
                     }
diff --git a/Assets/VRM/UniUnlit/Scripts/Utils.cs b/Assets/VRM/UniUnlit/Scripts/Utils.cs
index 3c5bc843a..2709aa6b4 100644
--- a/Assets/VRM/UniUnlit/Scripts/Utils.cs
+++ b/Assets/VRM/UniUnlit/Scripts/Utils.cs
@@ -68,8 +68,8 @@ namespace UniGLTF.UniUnlit
 
         /// <summary>
         /// Validate target material's UniUnlitRenderMode, UniUnlitVertexColorBlendOp.
-        /// Set appropriate hidden properites & keywords.
-        /// This will change RenderQueue independent to UniUnlitRenderMode if isRenderModeChagedByUser is true.
+        /// Set appropriate hidden properties & keywords.
+        /// This will change RenderQueue independent to UniUnlitRenderMode if isRenderModeChangedByUser is true.
         /// </summary>
         /// <param name="material">Target material</param>
         /// <param name="isRenderModeChangedByUser">Is changed by user</param>
diff --git a/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPersonCameraManager.cs b/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPersonCameraManager.cs
index 9b69985c9..dda06faa7 100644
--- a/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPersonCameraManager.cs
+++ b/Assets/VRM/UniVRM/Scripts/FirstPerson/VRMFirstPersonCameraManager.cs
@@ -9,7 +9,7 @@ namespace VRM
     /// <summary>
     /// ファーストパーソン向けLayer検討
     /// 
-    /// * Deault LayerをFirstPersonレイヤーとして使う
+    /// * Default LayerをFirstPersonレイヤーとして使う
     /// * 9番にThirdPerson Layerを追加する
     /// 
     /// * FirstPersonCameraはCullingMaskでThirdPerson Layerを除外
diff --git a/Assets/VRM/UniVRM/Scripts/Format/VRMExporter.cs b/Assets/VRM/UniVRM/Scripts/Format/VRMExporter.cs
index a77ad917f..a72d0cf6f 100644
--- a/Assets/VRM/UniVRM/Scripts/Format/VRMExporter.cs
+++ b/Assets/VRM/UniVRM/Scripts/Format/VRMExporter.cs
@@ -144,7 +144,7 @@ namespace VRM
                         gltf.extensions.VRM.meta.texture = TextureIO.ExportTexture(gltf, gltf.buffers.Count - 1, meta.Thumbnail, glTFTextureTypes.Unknown);
                     }
 
-                    // ussage pemission
+                    // ussage permission
                     gltf.extensions.VRM.meta.allowedUser = meta.AllowedUser;
                     gltf.extensions.VRM.meta.violentUssage = meta.ViolentUssage;
                     gltf.extensions.VRM.meta.sexualUssage = meta.SexualUssage;
diff --git a/Assets/VRM/UniVRM/Scripts/SpringBone/VRMSpringBone.cs b/Assets/VRM/UniVRM/Scripts/SpringBone/VRMSpringBone.cs
index 8a5c0100e..37a66c3ab 100644
--- a/Assets/VRM/UniVRM/Scripts/SpringBone/VRMSpringBone.cs
+++ b/Assets/VRM/UniVRM/Scripts/SpringBone/VRMSpringBone.cs
@@ -7,7 +7,7 @@ namespace VRM
 {
     /// <summary>
     /// The base algorithm is http://rocketjump.skr.jp/unity3d/109/ of @ricopin416
-    /// DefaultExecutionOrder(11000) means calclate springbone after FinaiIK( VRIK )
+    /// DefaultExecutionOrder(11000) means calculate springbone after FinalIK( VRIK )
     /// </summary>
     #if UNITY_5_5_OR_NEWER
     [DefaultExecutionOrder(11000)]