diff --git a/flutter/lib/common.dart b/flutter/lib/common.dart
index c07764e32..3e08d1e0c 100644
--- a/flutter/lib/common.dart
+++ b/flutter/lib/common.dart
@@ -244,6 +244,31 @@ final ButtonStyle flatButtonStyle = TextButton.styleFrom(
   ),
 );
 
+List<Locale> supportedLocales = const [
+  // specify CN/TW to fix CJK issue in flutter
+  Locale('zh', 'CN'),
+  Locale('zh', 'TW'),
+  Locale('fr'),
+  Locale('de'),
+  Locale('it'),
+  Locale('ja'),
+  Locale('cs'),
+  Locale('pl'),
+  Locale('ko'),
+  Locale('hu'),
+  Locale('pt'),
+  Locale('ru'),
+  Locale('sk'),
+  Locale('id'),
+  Locale('da'),
+  Locale('eo'),
+  Locale('tr'),
+  Locale('vi'),
+  Locale('pl'),
+  Locale('kz'),
+  Locale('en', 'US'),
+];
+
 String formatDurationToTime(Duration duration) {
   var totalTime = duration.inSeconds;
   final secs = totalTime % 60;
diff --git a/flutter/lib/main.dart b/flutter/lib/main.dart
index 43069bf79..8f04846e9 100644
--- a/flutter/lib/main.dart
+++ b/flutter/lib/main.dart
@@ -8,6 +8,7 @@ import 'package:flutter_hbb/desktop/screen/desktop_file_transfer_screen.dart';
 import 'package:flutter_hbb/desktop/screen/desktop_port_forward_screen.dart';
 import 'package:flutter_hbb/desktop/screen/desktop_remote_screen.dart';
 import 'package:flutter_hbb/utils/multi_window_manager.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:get/get.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -123,6 +124,12 @@ void runRemoteScreen(Map<String, dynamic> argument) async {
     home: DesktopRemoteScreen(
       params: argument,
     ),
+    localizationsDelegates: const [
+      GlobalMaterialLocalizations.delegate,
+      GlobalWidgetsLocalizations.delegate,
+      GlobalCupertinoLocalizations.delegate,
+    ],
+    supportedLocales: supportedLocales,
     navigatorObservers: const [
       // FirebaseAnalyticsObserver(analytics: analytics),
     ],
@@ -141,6 +148,12 @@ void runFileTransferScreen(Map<String, dynamic> argument) async {
       darkTheme: MyTheme.darkTheme,
       themeMode: MyTheme.initialThemeMode(),
       home: DesktopFileTransferScreen(params: argument),
+      localizationsDelegates: const [
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      supportedLocales: supportedLocales,
       navigatorObservers: const [
         // FirebaseAnalyticsObserver(analytics: analytics),
       ],
@@ -160,6 +173,12 @@ void runPortForwardScreen(Map<String, dynamic> argument) async {
       darkTheme: MyTheme.darkTheme,
       themeMode: MyTheme.initialThemeMode(),
       home: DesktopPortForwardScreen(params: argument),
+      localizationsDelegates: const [
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      supportedLocales: supportedLocales,
       navigatorObservers: const [
         // FirebaseAnalyticsObserver(analytics: analytics),
       ],
@@ -178,14 +197,20 @@ void runConnectionManagerScreen() async {
       theme: MyTheme.lightTheme,
       darkTheme: MyTheme.darkTheme,
       themeMode: MyTheme.initialThemeMode(),
+      localizationsDelegates: const [
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      supportedLocales: supportedLocales,
       home: const DesktopServerPage(),
       builder: _keepScaleBuilder()));
   windowManager.waitUntilReadyToShow(windowOptions, () async {
-      await windowManager.setAlignment(Alignment.topRight);
-      await windowManager.show();
-      await windowManager.focus();
-      await windowManager.setAlignment(Alignment.topRight); // ensure
-    });
+    await windowManager.setAlignment(Alignment.topRight);
+    await windowManager.show();
+    await windowManager.focus();
+    await windowManager.setAlignment(Alignment.topRight); // ensure
+  });
 }
 
 WindowOptions getHiddenTitleBarWindowOptions({Size? size}) {
@@ -247,6 +272,12 @@ class _AppState extends State<App> {
         navigatorObservers: const [
           // FirebaseAnalyticsObserver(analytics: analytics),
         ],
+        localizationsDelegates: const [
+          GlobalMaterialLocalizations.delegate,
+          GlobalWidgetsLocalizations.delegate,
+          GlobalCupertinoLocalizations.delegate,
+        ],
+        supportedLocales: supportedLocales,
         builder: isAndroid
             ? (context, child) => AccessibilityListener(
                   child: MediaQuery(
diff --git a/flutter/pubspec.yaml b/flutter/pubspec.yaml
index 09025ad0e..9248fe80e 100644
--- a/flutter/pubspec.yaml
+++ b/flutter/pubspec.yaml
@@ -24,6 +24,8 @@ environment:
 dependencies:
     flutter:
         sdk: flutter
+    flutter_localizations:
+        sdk: flutter
 
     # The following adds the Cupertino Icons font to your application.
     # Use with the CupertinoIcons class for iOS style icons.