diff --git a/client/package-lock.json b/client/package-lock.json
index a81a568..838d78d 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -18,8 +18,11 @@
         "@types/react": "^19.0.11",
         "@types/react-dom": "^19.0.4",
         "antd": "^5.24.7",
+        "i18next": "^25.0.1",
+        "i18next-browser-languagedetector": "^8.0.5",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
+        "react-i18next": "^15.5.1",
         "react-router-dom": "^7.5.0",
         "react-scripts": "5.0.1",
         "typescript": "^4.9.5",
@@ -9351,6 +9354,15 @@
         "node": ">=12"
       }
     },
+    "node_modules/html-parse-stringify": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/html-parse-stringify/-/html-parse-stringify-3.0.1.tgz",
+      "integrity": "sha512-KknJ50kTInJ7qIScF3jeaFRpMpE8/lfiTdzf/twXyPBLAGrLRTmkz3AdTnKeh40X8k9L2fdYwEp/42WGXIRGcg==",
+      "license": "MIT",
+      "dependencies": {
+        "void-elements": "3.1.0"
+      }
+    },
     "node_modules/html-webpack-plugin": {
       "version": "5.6.3",
       "resolved": "https://registry.npmjs.org/html-webpack-plugin/-/html-webpack-plugin-5.6.3.tgz",
@@ -9504,6 +9516,46 @@
         "node": ">=10.17.0"
       }
     },
+    "node_modules/i18next": {
+      "version": "25.0.1",
+      "resolved": "https://registry.npmjs.org/i18next/-/i18next-25.0.1.tgz",
+      "integrity": "sha512-8S8PyZbrymJZn3DaN70/34JYWNhsqrU6yA4MuzcygJBv+41dgNMocEA8h+kV1P7MCc1ll03lOTOIXE7mpNCicw==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://locize.com"
+        },
+        {
+          "type": "individual",
+          "url": "https://locize.com/i18next.html"
+        },
+        {
+          "type": "individual",
+          "url": "https://www.i18next.com/how-to/faq#i18next-is-awesome.-how-can-i-support-the-project"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.26.10"
+      },
+      "peerDependencies": {
+        "typescript": "^5"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/i18next-browser-languagedetector": {
+      "version": "8.0.5",
+      "resolved": "https://registry.npmjs.org/i18next-browser-languagedetector/-/i18next-browser-languagedetector-8.0.5.tgz",
+      "integrity": "sha512-OstebRKqKiQw8xEvQF5aRyUujsCatanj7Q9eo5iiH2gJpoXGZ7483ol3sVBwfqbobTQPNH1J+NAyJ1aCQoEC+w==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.23.2"
+      }
+    },
     "node_modules/iconv-lite": {
       "version": "0.6.3",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
@@ -14931,6 +14983,32 @@
       "integrity": "sha512-SN/U6Ytxf1QGkw/9ve5Y+NxBbZM6Ht95tuXNMKs8EJyFa/Vy/+Co3stop3KBHARfn/giv+Lj1uUnTfOJ3moFEQ==",
       "license": "MIT"
     },
+    "node_modules/react-i18next": {
+      "version": "15.5.1",
+      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.5.1.tgz",
+      "integrity": "sha512-C8RZ7N7H0L+flitiX6ASjq9p5puVJU1Z8VyL3OgM/QOMRf40BMZX+5TkpxzZVcTmOLPX5zlti4InEX5pFyiVeA==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.25.0",
+        "html-parse-stringify": "^3.0.1"
+      },
+      "peerDependencies": {
+        "i18next": ">= 23.2.3",
+        "react": ">= 16.8.0",
+        "typescript": "^5"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        },
+        "react-native": {
+          "optional": true
+        },
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-is": {
       "version": "17.0.2",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-17.0.2.tgz",
@@ -17720,6 +17798,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/void-elements": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",
+      "integrity": "sha512-Dhxzh5HZuiHQhbvTW9AMetFfBHDMYpo23Uo9btPXgdYP+3T5S+p+jgNy7spra+veYhBP2dCSgxR/i2Y02h5/6w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/w3c-hr-time": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.2.tgz",
diff --git a/client/package.json b/client/package.json
index 197b1db..956c0ce 100644
--- a/client/package.json
+++ b/client/package.json
@@ -13,8 +13,11 @@
     "@types/react": "^19.0.11",
     "@types/react-dom": "^19.0.4",
     "antd": "^5.24.7",
+    "i18next": "^25.0.1",
+    "i18next-browser-languagedetector": "^8.0.5",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
+    "react-i18next": "^15.5.1",
     "react-router-dom": "^7.5.0",
     "react-scripts": "5.0.1",
     "typescript": "^4.9.5",
diff --git a/client/src/components/SiderMenu.tsx b/client/src/components/SiderMenu.tsx
index 8403cf0..8ce7ab4 100644
--- a/client/src/components/SiderMenu.tsx
+++ b/client/src/components/SiderMenu.tsx
@@ -1,5 +1,6 @@
 import { Divider, Menu, Tooltip } from 'antd';
 import React from 'react';
+import { useTranslation } from 'react-i18next';
 
 interface SiderMenuProps {
   collapsed: boolean;
@@ -12,6 +13,7 @@ export default function SiderMenu({
   selectedKey,
   hangleMenuClick,
 }: SiderMenuProps) {
+  const { t } = useTranslation();
   const collapseStyle = collapsed
     ? { fontSize: '12px' }
     : { fontSize: '12px', paddingLeft: '52px' };
@@ -37,7 +39,9 @@ export default function SiderMenu({
       icon: (
         <img src="./icons/sider/process-diagram.svg" alt="process diagram" />
       ),
-      label: <Tooltip title="Схемы процессов">Схемы процессов</Tooltip>,
+      label: (
+        <Tooltip title={t('processDiagrams')}>{t('processDiagrams')}</Tooltip>
+      ),
     },
     {
       key: '/running-processes',
@@ -47,7 +51,9 @@ export default function SiderMenu({
           alt="running processes"
         />
       ),
-      label: <Tooltip title="Запущенные процессы">Запущенные процессы</Tooltip>,
+      label: (
+        <Tooltip title={t('runningProcesses')}>{t('runningProcesses')}</Tooltip>
+      ),
     },
     !collapsed
       ? {
@@ -65,33 +71,33 @@ export default function SiderMenu({
     {
       key: 'sub1',
       icon: <img src="./icons/sider/settings.svg" alt="settings" />,
-      label: 'Настройки',
+      label: t('settings'),
       className: 'no-expand-icon',
       children: [
         {
           key: '/accounts',
           label: !collapsed ? (
-            <Tooltip title="Учетные записи">Учетные записи</Tooltip>
+            <Tooltip title={t('accounts')}>{t('accounts')}</Tooltip>
           ) : (
-            'Учетные записи'
+            t('accounts')
           ),
           style: collapseStyle,
         },
         {
           key: '/events-list',
           label: !collapsed ? (
-            <Tooltip title="Справочник событий">Справочник событий</Tooltip>
+            <Tooltip title={t('eventsList')}>{t('eventsList')}</Tooltip>
           ) : (
-            'Справочник событий'
+            t('eventsList')
           ),
           style: collapseStyle,
         },
         {
           key: '/configuration',
           label: !collapsed ? (
-            <Tooltip title="Конфигурация">Конфигурация</Tooltip>
+            <Tooltip title={t('configuration')}>{t('configuration')}</Tooltip>
           ) : (
-            'Конфигурация'
+            t('configuration')
           ),
           style: collapseStyle,
         },
diff --git a/client/src/index.tsx b/client/src/index.tsx
index cceac43..2631204 100644
--- a/client/src/index.tsx
+++ b/client/src/index.tsx
@@ -3,17 +3,16 @@ import ReactDOM from 'react-dom/client';
 import './index.css';
 import App from './App';
 import { BrowserRouter } from 'react-router-dom';
-import { ConfigProvider } from 'antd';
-import { theme } from './config/customTheme';
+import AppWrapper from './config/AppWrapper';
 
 const root = ReactDOM.createRoot(
   document.getElementById('root') as HTMLElement
 );
 
 root.render(
-  <ConfigProvider theme={theme}>
+  <AppWrapper>
     <BrowserRouter>
       <App />
     </BrowserRouter>
-  </ConfigProvider>
+  </AppWrapper>
 );
diff --git a/client/src/pages/AccountsPage.tsx b/client/src/pages/AccountsPage.tsx
index aa6a98e..4387052 100644
--- a/client/src/pages/AccountsPage.tsx
+++ b/client/src/pages/AccountsPage.tsx
@@ -2,8 +2,10 @@ import Header from '../components/Header';
 import { useState } from 'react';
 import ContentDrawer from '../components/ContentDrawer';
 import UserCreate from '../components/UserCreate';
+import { useTranslation } from 'react-i18next';
 
 export default function AccountsPage() {
+  const { t } = useTranslation();
   const [open, setOpen] = useState(false);
 
   const showDrawer = () => setOpen(true);
@@ -12,7 +14,7 @@ export default function AccountsPage() {
   return (
     <>
       <Header
-        title="Учетные записи"
+        title={t('accounts')}
         additionalContent={
           <img
             src="./icons/header/add_2.svg"