diff --git a/frontend/src/application.jsx b/frontend/src/application.jsx
index 464f700e..4b59acf5 100644
--- a/frontend/src/application.jsx
+++ b/frontend/src/application.jsx
@@ -1,44 +1,17 @@
 import { configureStore } from '@reduxjs/toolkit';
 import * as Sentry from '@sentry/react';
-import i18next from 'i18next';
-import LanguageDetector from 'i18next-browser-languagedetector';
-import { initReactI18next } from 'react-i18next';
 import { Provider } from 'react-redux';
 import { BrowserRouter } from 'react-router-dom';
 
 import AppRoutes from './AppRoutes.jsx';
 import ModalWindow from './components/Modals';
-import resources from './locales';
 import AuthProvider from './providers/AuthProvider.jsx';
 import SnippetsProvider from './providers/SnippetsProvider.jsx';
 import { rootReducer } from './slices';
+import { initI18next } from './initI18next.js';
 
 export default async () => {
-  const defaultLanguage = 'ru';
-  const baseI18NextConfig = { debug: false, resources };
-
-  if (process.env.NODE_ENV === 'production') {
-    await i18next
-      .use(LanguageDetector)
-      .use(initReactI18next)
-      .init({ ...baseI18NextConfig, fallbackLng: defaultLanguage });
-  }
-
-  if (
-    process.env.NODE_ENV === 'development' &&
-    !process.env.REACT_APP_NODE_ENV
-  ) {
-    await i18next
-      .use(LanguageDetector)
-      .use(initReactI18next)
-      .init(baseI18NextConfig);
-  }
-
-  if (process.env.REACT_APP_NODE_ENV === 'test') {
-    await i18next
-      .use(initReactI18next)
-      .init({ ...baseI18NextConfig, lng: defaultLanguage });
-  }
+  initI18next();
 
   const store = configureStore({
     reducer: rootReducer,
diff --git a/frontend/src/hooks/useLanguage.js b/frontend/src/hooks/useLanguage.js
index 84a37657..9490ad49 100644
--- a/frontend/src/hooks/useLanguage.js
+++ b/frontend/src/hooks/useLanguage.js
@@ -1,10 +1,7 @@
 import { useTranslation } from 'react-i18next';
 import { useLayoutEffect, useState } from 'react';
 
-const AVAILABLE_LANGUAGES = ['en', 'ru'];
-if (process.env.NODE_ENV !== 'production') {
-  AVAILABLE_LANGUAGES.push('dev');
-}
+import { AVAILABLE_LANGUAGES } from '../initI18next';
 
 const useLanguage = () => {
   const { i18n } = useTranslation();
diff --git a/frontend/src/initI18next.js b/frontend/src/initI18next.js
new file mode 100644
index 00000000..d64def6d
--- /dev/null
+++ b/frontend/src/initI18next.js
@@ -0,0 +1,28 @@
+import i18next from 'i18next';
+import LanguageDetector from 'i18next-browser-languagedetector';
+import { initReactI18next } from 'react-i18next';
+
+import resources from './locales';
+
+const defaultLanguage = 'ru';
+const baseI18NextConfig = {
+  debug: process.env.NODE_ENV === 'development',
+  resources,
+};
+
+export const AVAILABLE_LANGUAGES = ['en', 'ru'];
+
+export const initI18next = async () => {
+  if (process.env.REACT_APP_NODE_ENV === 'test') {
+    await i18next
+      .use(initReactI18next)
+      .init({ ...baseI18NextConfig, lng: defaultLanguage });
+
+    return;
+  }
+
+  await i18next
+    .use(LanguageDetector)
+    .use(initReactI18next)
+    .init({ ...baseI18NextConfig, fallbackLng: defaultLanguage });
+};