diff --git a/Note/TextFormatter.swift b/Note/TextFormatter.swift
index f65561e..cf4bd28 100644
--- a/Note/TextFormatter.swift
+++ b/Note/TextFormatter.swift
@@ -9,7 +9,7 @@ import Foundation
 
 enum TextFormatter {
 
-    static func formatLog(_ text: String) -> String {
+    static nonisolated func formatLog(_ text: String) -> String {
         var content = text
 
         content = content.replacingOccurrences(of: "# ", with: "")
@@ -31,7 +31,7 @@ enum TextFormatter {
         return content
     }
 
-    static func formatForCloud(_ text: String) -> String {
+    static nonisolated func formatForCloud(_ text: String) -> String {
         var content = formatForShortcut(text)
         content = "# " + content
         content = insertEmptyLineAfterFirstLine(content)
@@ -81,7 +81,7 @@ enum TextFormatter {
         return content
     }
 
-    static func formatForNote(_ text: String) -> String {
+    static nonisolated func formatForNote(_ text: String) -> String {
         var content = text
         content = content.replacingOccurrences(of: "# ", with: "")
         content = content.replacingOccurrences(of: "#", with: "")
@@ -116,13 +116,13 @@ enum TextFormatter {
         return result.trimmingCharacters(in: .whitespacesAndNewlines)
     }
 
-    static func removeEmptyLines(_ text: String) -> String {
+    static nonisolated func removeEmptyLines(_ text: String) -> String {
         let lines = text.components(separatedBy: .newlines)
         let nonEmptyLines = lines.filter { !$0.trimmingCharacters(in: .whitespaces).isEmpty }
         return nonEmptyLines.joined(separator: "\n")
     }
 
-    static func insertEmptyLineAfterFirstLine(_ text: String) -> String {
+    static nonisolated func insertEmptyLineAfterFirstLine(_ text: String) -> String {
         var lines = text.components(separatedBy: .newlines)
         if !lines.isEmpty {
             lines.insert("", at: 1)