diff --git a/.vscode/settings.json b/.vscode/settings.json
index 26da56c6..64134715 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -15,6 +15,7 @@
     "inputbox",
     "katex",
     "khtml",
+    "languagedetector",
     "localstorage",
     "lucide",
     "maximizable",
diff --git a/package.json b/package.json
index 7db37c95..3acdd2c7 100644
--- a/package.json
+++ b/package.json
@@ -19,14 +19,15 @@
     "@tauri-apps/plugin-http": "~2.0.1",
     "@tauri-apps/plugin-os": "^2.2.0",
     "@tauri-apps/plugin-shell": ">=2.0.0",
+    "@tauri-apps/plugin-updater": "^2.3.0",
     "@tauri-apps/plugin-websocket": "~2",
     "@tauri-apps/plugin-window": "2.0.0-alpha.1",
-    "@tauri-apps/plugin-updater": "^2.3.0",
     "ahooks": "^3.8.4",
     "axios": "^1.7.7",
     "clsx": "^2.1.1",
     "dotenv": "^16.4.7",
     "i18next": "^23.16.2",
+    "i18next-browser-languagedetector": "^8.0.3",
     "lodash": "^4.17.21",
     "lucide-react": "^0.461.0",
     "mermaid": "^11.4.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2a7b02e6..39e7f04d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -59,6 +59,9 @@ importers:
       i18next:
         specifier: ^23.16.2
         version: 23.16.2
+      i18next-browser-languagedetector:
+        specifier: ^8.0.3
+        version: 8.0.3
       lodash:
         specifier: ^4.17.21
         version: 4.17.21
@@ -554,46 +557,55 @@ packages:
     resolution: {integrity: sha512-0KXvIJQMOImLCVCz9uvvdPgfyWo93aHHp8ui3FrtOP57svqrF/roSSR5pjqL2hcMp0ljeGlU4q9o/rQaAQ3AYA==}
     cpu: [arm]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm-musleabihf@4.24.0':
     resolution: {integrity: sha512-it2BW6kKFVh8xk/BnHfakEeoLPv8STIISekpoF+nBgWM4d55CZKc7T4Dx1pEbTnYm/xEKMgy1MNtYuoA8RFIWw==}
     cpu: [arm]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-arm64-gnu@4.24.0':
     resolution: {integrity: sha512-i0xTLXjqap2eRfulFVlSnM5dEbTVque/3Pi4g2y7cxrs7+a9De42z4XxKLYJ7+OhE3IgxvfQM7vQc43bwTgPwA==}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm64-musl@4.24.0':
     resolution: {integrity: sha512-9E6MKUJhDuDh604Qco5yP/3qn3y7SLXYuiC0Rpr89aMScS2UAmK1wHP2b7KAa1nSjWJc/f/Lc0Wl1L47qjiyQw==}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-powerpc64le-gnu@4.24.0':
     resolution: {integrity: sha512-2XFFPJ2XMEiF5Zi2EBf4h73oR1V/lycirxZxHZNc93SqDN/IWhYYSYj8I9381ikUFXZrz2v7r2tOVk2NBwxrWw==}
     cpu: [ppc64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-riscv64-gnu@4.24.0':
     resolution: {integrity: sha512-M3Dg4hlwuntUCdzU7KjYqbbd+BLq3JMAOhCKdBE3TcMGMZbKkDdJ5ivNdehOssMCIokNHFOsv7DO4rlEOfyKpg==}
     cpu: [riscv64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-s390x-gnu@4.24.0':
     resolution: {integrity: sha512-mjBaoo4ocxJppTorZVKWFpy1bfFj9FeCMJqzlMQGjpNPY9JwQi7OuS1axzNIk0nMX6jSgy6ZURDZ2w0QW6D56g==}
     cpu: [s390x]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-gnu@4.24.0':
     resolution: {integrity: sha512-ZXFk7M72R0YYFN5q13niV0B7G8/5dcQ9JDp8keJSfr3GoZeXEoMHP/HlvqROA3OMbMdfr19IjCeNAnPUG93b6A==}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-musl@4.24.0':
     resolution: {integrity: sha512-w1i+L7kAXZNdYl+vFvzSZy8Y1arS7vMgIy8wusXJzRrPyof5LAb02KGr1PD2EkRcl73kHulIID0M501lN+vobQ==}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-win32-arm64-msvc@4.24.0':
     resolution: {integrity: sha512-VXBrnPWgBpVDCVY6XF3LEW0pOU51KbaHhccHw6AS6vBWIC60eqsH19DAeeObl+g8nKAz04QFdl/Cefta0xQtUQ==}
@@ -652,24 +664,28 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@tauri-apps/cli-linux-arm64-musl@2.2.7':
     resolution: {integrity: sha512-+8HZ+txff/Y3YjAh80XcLXcX8kpGXVdr1P8AfjLHxHdS6QD4Md+acSxGTTNbplmHuBaSHJvuTvZf9tU1eDCTDg==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@tauri-apps/cli-linux-x64-gnu@2.2.7':
     resolution: {integrity: sha512-ahlSnuCnUntblp9dG7/w5ZWZOdzRFi3zl0oScgt7GF4KNAOEa7duADsxPA4/FT2hLRa0SvpqtD4IYFvCxoVv3Q==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@tauri-apps/cli-linux-x64-musl@2.2.7':
     resolution: {integrity: sha512-+qKAWnJRSX+pjjRbKAQgTdFY8ecdcu8UdJ69i7wn3ZcRn2nMMzOO2LOMOTQV42B7/Q64D1pIpmZj9yblTMvadA==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@tauri-apps/cli-win32-arm64-msvc@2.2.7':
     resolution: {integrity: sha512-aa86nRnrwT04u9D9fhf5JVssuAZlUCCc8AjqQjqODQjMd4BMA2+d4K9qBMpEG/1kVh95vZaNsLogjEaqSTTw4A==}
@@ -1426,6 +1442,9 @@ packages:
   html-url-attributes@3.0.1:
     resolution: {integrity: sha512-ol6UPyBWqsrO6EJySPz2O7ZSr856WDrEzM5zMqp+FJJLGMW35cLYmmZnl0vztAZxRUoNZJFTCohfjuIJ8I4QBQ==}
 
+  i18next-browser-languagedetector@8.0.3:
+    resolution: {integrity: sha512-beOOLArattPBc2YZG5IXGJytdYFgUR7cS8Wd6HT4IczIoWKgmTspOQ2yasaGklelVo5seLPmnEKvLHR+E/MdWQ==}
+
   i18next@23.16.2:
     resolution: {integrity: sha512-dFyxwLXxEQK32f6tITBMaRht25mZPJhQ0WbC0p3bO2mWBal9lABTMqSka5k+GLSRWLzeJBKDpH7BeIA9TZI7Jg==}
 
@@ -3607,6 +3626,10 @@ snapshots:
 
   html-url-attributes@3.0.1: {}
 
+  i18next-browser-languagedetector@8.0.3:
+    dependencies:
+      '@babel/runtime': 7.25.9
+
   i18next@23.16.2:
     dependencies:
       '@babel/runtime': 7.25.9
diff --git a/src/components/Assistant/AutoResizeTextarea.tsx b/src/components/Assistant/AutoResizeTextarea.tsx
index 26338ca7..9c1a89c1 100644
--- a/src/components/Assistant/AutoResizeTextarea.tsx
+++ b/src/components/Assistant/AutoResizeTextarea.tsx
@@ -1,4 +1,5 @@
 import React, { useEffect, useRef } from "react";
+import { useTranslation } from "react-i18next";
 
 interface AutoResizeTextareaProps {
   input: string;
@@ -11,6 +12,7 @@ const AutoResizeTextarea: React.FC<AutoResizeTextareaProps> = ({
   setInput,
   handleKeyDown,
 }) => {
+  const { t } = useTranslation();
   const textareaRef = useRef<HTMLTextAreaElement>(null);
 
   useEffect(() => {
@@ -25,7 +27,7 @@ const AutoResizeTextarea: React.FC<AutoResizeTextareaProps> = ({
     <textarea
       ref={textareaRef}
       className="text-xs flex-1 outline-none min-w-[200px] text-[#333] dark:text-[#d8d8d8] placeholder-text-xs placeholder-[#999] dark:placeholder-gray-500 bg-transparent"
-      placeholder="Ask whatever you want ..."
+      placeholder={t('search.textarea.placeholder')}
       value={input}
       onChange={(e) => setInput(e.target.value)}
       onKeyDown={handleKeyDown}
diff --git a/src/components/Assistant/Chat.tsx b/src/components/Assistant/Chat.tsx
index 1108ea75..21325050 100644
--- a/src/components/Assistant/Chat.tsx
+++ b/src/components/Assistant/Chat.tsx
@@ -1,318 +1,342 @@
-import {forwardRef, memo, useCallback, useEffect, useImperativeHandle, useRef, useState,} from "react";
-import {MessageSquarePlus, PanelLeft} from "lucide-react";
-import {isTauri} from "@tauri-apps/api/core";
-
-import {ChatMessage} from "./ChatMessage";
-import type {Chat, Message} from "./types";
-import {tauriFetch} from "../../api/tauriFetchClient";
-import {useWebSocket} from "../../hooks/useWebSocket";
-import {useChatStore} from "../../stores/chatStore";
-import {useWindows} from "../../hooks/useWindows";
-import {clientEnv} from "@/utils/env";
+import {
+  forwardRef,
+  memo,
+  useCallback,
+  useEffect,
+  useImperativeHandle,
+  useRef,
+  useState,
+} from "react";
+import { MessageSquarePlus, PanelLeft } from "lucide-react";
+import { isTauri } from "@tauri-apps/api/core";
+import { useTranslation } from "react-i18next";
 
+import { ChatMessage } from "./ChatMessage";
+import type { Chat, Message } from "./types";
+import { tauriFetch } from "@/api/tauriFetchClient";
+import { useWebSocket } from "@/hooks/useWebSocket";
+import { useChatStore } from "@/stores/chatStore";
+import { useWindows } from "@/hooks/useWindows";
+import { clientEnv } from "@/utils/env";
 // import { useAppStore } from '@/stores/appStore';
 
 interface ChatAIProps {
-    isTransitioned: boolean;
-    changeInput: (val: string) => void;
-    isSearchActive?: boolean;
-    isDeepThinkActive?: boolean;
+  isTransitioned: boolean;
+  changeInput: (val: string) => void;
+  isSearchActive?: boolean;
+  isDeepThinkActive?: boolean;
 }
 
 export interface ChatAIRef {
-    init: (value: string) => void;
-    cancelChat: () => void;
-    connected: boolean;
-    reconnect: () => void;
+  init: (value: string) => void;
+  cancelChat: () => void;
+  connected: boolean;
+  reconnect: () => void;
 }
 
-const ChatAI = memo(forwardRef<ChatAIRef, ChatAIProps>(
-    ({isTransitioned, changeInput, isSearchActive, isDeepThinkActive}, ref) => {
-        useImperativeHandle(ref, () => ({
-            init: init,
-            cancelChat: cancelChat,
-            connected: connected,
-            reconnect: reconnect
-        }));
+const ChatAI = memo(
+  forwardRef<ChatAIRef, ChatAIProps>(
+    (
+      { isTransitioned, changeInput, isSearchActive, isDeepThinkActive },
+      ref
+    ) => {
+      const { t } = useTranslation();
+      useImperativeHandle(ref, () => ({
+        init: init,
+        cancelChat: cancelChat,
+        connected: connected,
+        reconnect: reconnect,
+      }));
 
-        // const appStore = useAppStore();
+      // const appStore = useAppStore();
 
-        const {createWin} = useWindows();
+      const { createWin } = useWindows();
 
-        const {curChatEnd, setCurChatEnd, setConnected} = useChatStore();
+      const { curChatEnd, setCurChatEnd, setConnected } = useChatStore();
 
-        const [activeChat, setActiveChat] = useState<Chat>();
-        const [isTyping, setIsTyping] = useState(false);
-        const messagesEndRef = useRef<HTMLDivElement>(null);
+      const [activeChat, setActiveChat] = useState<Chat>();
+      const [isTyping, setIsTyping] = useState(false);
+      const messagesEndRef = useRef<HTMLDivElement>(null);
 
-        const [websocketId, setWebsocketId] = useState("");
-        const [curMessage, setCurMessage] = useState("");
-        const [curId, setCurId] = useState("");
+      const [websocketId, setWebsocketId] = useState("");
+      const [curMessage, setCurMessage] = useState("");
+      const [curId, setCurId] = useState("");
 
-        const curChatEndRef = useRef(curChatEnd);
-        curChatEndRef.current = curChatEnd;
+      const curChatEndRef = useRef(curChatEnd);
+      curChatEndRef.current = curChatEnd;
 
-        const curIdRef = useRef(curId);
-        curIdRef.current = curId;
+      const curIdRef = useRef(curId);
+      curIdRef.current = curId;
 
-        const handleMessageChunk = useCallback((chunk: string) => {
-            setCurMessage(prev => prev + chunk);
-        }, []);
+      const handleMessageChunk = useCallback((chunk: string) => {
+        setCurMessage((prev) => prev + chunk);
+      }, []);
 
-        // console.log("chat useWebSocket", clientEnv.COCO_WEBSOCKET_URL)
-        const {messages, setMessages, connected, reconnect} = useWebSocket(
-            clientEnv.COCO_WEBSOCKET_URL,
-            (msg) => {
-                // console.log("msg", msg);
+      // console.log("chat useWebSocket", clientEnv.COCO_WEBSOCKET_URL)
+      const { messages, setMessages, connected, reconnect } = useWebSocket(
+        clientEnv.COCO_WEBSOCKET_URL,
+        (msg) => {
+          // console.log("msg", msg);
 
-                if (msg.includes("websocket-session-id")) {
-                    const array = msg.split(" ");
-                    setWebsocketId(array[2]);
-                }
+          if (msg.includes("websocket-session-id")) {
+            const array = msg.split(" ");
+            setWebsocketId(array[2]);
+          }
 
-                if (msg.includes("PRIVATE")) {
-                    if (
-                        msg.includes("assistant finished output") ||
-                        curChatEndRef.current
-                    ) {
-                        setCurChatEnd(true);
-                    } else {
-                        const cleanedData = msg.replace(/^PRIVATE /, "");
-                        try {
-                            const chunkData = JSON.parse(cleanedData);
-                            if (chunkData.reply_to_message === curIdRef.current) {
-                                handleMessageChunk(chunkData.message_chunk)
-                                return chunkData.message_chunk;
-                            }
-                        } catch (error) {
-                            console.error("JSON Parse error:", error);
-                        }
-                    }
-                }
-            }
-        );
-
-        useEffect(() => {
-            setConnected(connected)
-        }, [connected])
-
-        const simulateAssistantResponse = useCallback(() => {
-            if (messages.length === 0 || !activeChat?._id) return;
-
-            console.log("messages", messages);
-
-            const assistantMessage: Message = {
-                _id: activeChat._id,
-                _source: {
-                    type: "assistant",
-                    message: messages,
-                },
-            };
-
-            const updatedChat = {
-                ...activeChat,
-                messages: [...(activeChat.messages || []), assistantMessage],
-            };
-            setMessages("");
-            setCurMessage("");
-            console.log("updatedChat", updatedChat);
-            setActiveChat(updatedChat);
-
-            const timer = setTimeout(() => setIsTyping(false), 1000);
-            return () => clearTimeout(timer);
-        }, [activeChat?._id]);
-
-        // websocket
-        useEffect(() => {
-            if (curChatEnd) {
-                simulateAssistantResponse();
-            }
-        }, [messages, curChatEnd]);
-
-        const scrollToBottom = () => {
-            messagesEndRef.current?.scrollIntoView({
-                behavior: "smooth",
-                block: "end",
-            });
-        };
-
-        useEffect(() => {
-            scrollToBottom();
-        }, [activeChat?.messages, isTyping, curMessage]);
-
-        useEffect(() => {
-            return () => {
-                chatClose();
-                setMessages("");
-                setCurMessage("");
-                setActiveChat(undefined);
-                setIsTyping(false);
-                setCurChatEnd(true);
-            };
-        }, []);
-
-        const createNewChat = useCallback(async (value: string = "") => {
-            chatClose();
-            try {
-                const response = await tauriFetch({
-                    url: "/chat/_new",
-                    method: "POST",
-                });
-                console.log("_new", response);
-                const newChat: Chat = response.data;
-
-                setActiveChat(newChat);
-                handleSendMessage(value, newChat);
-            } catch (error) {
-                console.error("Failed to fetch user data:", error);
-            }
-        }, []);
-
-        const init = (value: string) => {
-            if (!curChatEnd) return;
-            if (!activeChat?._id) {
-                createNewChat(value);
+          if (msg.includes("PRIVATE")) {
+            if (
+              msg.includes("assistant finished output") ||
+              curChatEndRef.current
+            ) {
+              setCurChatEnd(true);
             } else {
-                handleSendMessage(value);
-            }
-        };
-
-        const handleSendMessage = async (content: string, newChat?: Chat) => {
-            newChat = newChat || activeChat;
-            if (!newChat?._id || !content) return;
-            try {
-                const response = await tauriFetch({
-                    url: `/chat/${newChat?._id}/_send?search=${isSearchActive}&deep_thinking=${isDeepThinkActive}`,
-                    method: "POST",
-                    headers: {
-                        "WEBSOCKET-SESSION-ID": websocketId,
-                    },
-                    body: JSON.stringify({message: content}),
-                });
-                console.log("_send", response, websocketId);
-                setCurId(response.data[0]?._id);
-                const updatedChat: Chat = {
-                    ...newChat,
-                    messages: [...(newChat?.messages || []), ...(response.data || [])],
-                };
-                changeInput("");
-                console.log("updatedChat2", updatedChat);
-                setActiveChat(updatedChat);
-                setIsTyping(true);
-                setCurChatEnd(false);
-            } catch (error) {
-                console.error("Failed to fetch user data:", error);
-            }
-        };
-
-        const chatClose = async () => {
-            if (!activeChat?._id) return;
-            try {
-                const response = await tauriFetch({
-                    url: `/chat/${activeChat._id}/_close`,
-                    method: "POST",
-                });
-                console.log("_close", response);
-            } catch (error) {
-                console.error("Failed to fetch user data:", error);
-            }
-        };
-
-        const cancelChat = async () => {
-            setCurChatEnd(true);
-            setIsTyping(false);
-            if (!activeChat?._id) return;
-            try {
-                const response = await tauriFetch({
-                    url: `/chat/${activeChat._id}/_cancel`,
-                    method: "POST",
-                });
-
-                console.log("_cancel", response);
-            } catch (error) {
-                console.error("Failed to fetch user data:", error);
-            }
-        };
-
-        async function openChatAI() {
-            if (isTauri()) {
-                createWin && createWin({
-                    label: "chat",
-                    title: "Coco Chat",
-                    dragDropEnabled: true,
-                    center: true,
-                    width: 1000,
-                    height: 800,
-                    alwaysOnTop: false,
-                    skipTaskbar: false,
-                    decorations: true,
-                    closable: true,
-                    url: "/ui/chat",
-                });
+              const cleanedData = msg.replace(/^PRIVATE /, "");
+              try {
+                const chunkData = JSON.parse(cleanedData);
+                if (chunkData.reply_to_message === curIdRef.current) {
+                  handleMessageChunk(chunkData.message_chunk);
+                  return chunkData.message_chunk;
+                }
+              } catch (error) {
+                console.error("JSON Parse error:", error);
+              }
             }
+          }
         }
+      );
 
-        if (!isTransitioned) return null;
+      useEffect(() => {
+        setConnected(connected);
+      }, [connected]);
 
-        return (
-            <div
-                data-tauri-drag-region
-                className={`h-[500px] flex flex-col rounded-xl overflow-hidden`}
+      const simulateAssistantResponse = useCallback(() => {
+        if (messages.length === 0 || !activeChat?._id) return;
+
+        console.log("messages", messages);
+
+        const assistantMessage: Message = {
+          _id: activeChat._id,
+          _source: {
+            type: "assistant",
+            message: messages,
+          },
+        };
+
+        const updatedChat = {
+          ...activeChat,
+          messages: [...(activeChat.messages || []), assistantMessage],
+        };
+        setMessages("");
+        setCurMessage("");
+        console.log("updatedChat", updatedChat);
+        setActiveChat(updatedChat);
+
+        const timer = setTimeout(() => setIsTyping(false), 1000);
+        return () => clearTimeout(timer);
+      }, [activeChat?._id]);
+
+      // websocket
+      useEffect(() => {
+        if (curChatEnd) {
+          simulateAssistantResponse();
+        }
+      }, [messages, curChatEnd]);
+
+      const scrollToBottom = () => {
+        messagesEndRef.current?.scrollIntoView({
+          behavior: "smooth",
+          block: "end",
+        });
+      };
+
+      useEffect(() => {
+        scrollToBottom();
+      }, [activeChat?.messages, isTyping, curMessage]);
+
+      useEffect(() => {
+        return () => {
+          chatClose();
+          setMessages("");
+          setCurMessage("");
+          setActiveChat(undefined);
+          setIsTyping(false);
+          setCurChatEnd(true);
+        };
+      }, []);
+
+      const createNewChat = useCallback(async (value: string = "") => {
+        chatClose();
+        try {
+          const response = await tauriFetch({
+            url: "/chat/_new",
+            method: "POST",
+          });
+          console.log("_new", response);
+          const newChat: Chat = response.data;
+
+          setActiveChat(newChat);
+          handleSendMessage(value, newChat);
+        } catch (error) {
+          console.error("Failed to fetch user data:", error);
+        }
+      }, []);
+
+      const init = (value: string) => {
+        if (!curChatEnd) return;
+        if (!activeChat?._id) {
+          createNewChat(value);
+        } else {
+          handleSendMessage(value);
+        }
+      };
+
+      const handleSendMessage = async (content: string, newChat?: Chat) => {
+        newChat = newChat || activeChat;
+        if (!newChat?._id || !content) return;
+        try {
+          const response = await tauriFetch({
+            url: `/chat/${newChat?._id}/_send?search=${isSearchActive}&deep_thinking=${isDeepThinkActive}`,
+            method: "POST",
+            headers: {
+              "WEBSOCKET-SESSION-ID": websocketId,
+            },
+            body: JSON.stringify({ message: content }),
+          });
+          console.log("_send", response, websocketId);
+          setCurId(response.data[0]?._id);
+          const updatedChat: Chat = {
+            ...newChat,
+            messages: [...(newChat?.messages || []), ...(response.data || [])],
+          };
+          changeInput("");
+          console.log("updatedChat2", updatedChat);
+          setActiveChat(updatedChat);
+          setIsTyping(true);
+          setCurChatEnd(false);
+        } catch (error) {
+          console.error("Failed to fetch user data:", error);
+        }
+      };
+
+      const chatClose = async () => {
+        if (!activeChat?._id) return;
+        try {
+          const response = await tauriFetch({
+            url: `/chat/${activeChat._id}/_close`,
+            method: "POST",
+          });
+          console.log("_close", response);
+        } catch (error) {
+          console.error("Failed to fetch user data:", error);
+        }
+      };
+
+      const cancelChat = async () => {
+        setCurChatEnd(true);
+        setIsTyping(false);
+        if (!activeChat?._id) return;
+        try {
+          const response = await tauriFetch({
+            url: `/chat/${activeChat._id}/_cancel`,
+            method: "POST",
+          });
+
+          console.log("_cancel", response);
+        } catch (error) {
+          console.error("Failed to fetch user data:", error);
+        }
+      };
+
+      async function openChatAI() {
+        if (isTauri()) {
+          createWin &&
+            createWin({
+              label: "chat",
+              title: "Coco Chat",
+              dragDropEnabled: true,
+              center: true,
+              width: 1000,
+              height: 800,
+              alwaysOnTop: false,
+              skipTaskbar: false,
+              decorations: true,
+              closable: true,
+              url: "/ui/chat",
+            });
+        }
+      }
+
+      if (!isTransitioned) return null;
+
+      return (
+        <div
+          data-tauri-drag-region
+          className={`h-[500px] flex flex-col rounded-xl overflow-hidden`}
+        >
+          <header
+            data-tauri-drag-region
+            className={`flex items-center justify-between py-2 px-1`}
+          >
+            <button
+              onClick={() => openChatAI()}
+              className={`p-2 rounded-lg transition-colors text-[#333] dark:text-[#d8d8d8]`}
             >
-                <header
-                    data-tauri-drag-region
-                    className={`flex items-center justify-between py-2 px-1`}
-                >
-                    <button
-                        onClick={() => openChatAI()}
-                        className={`p-2 rounded-lg transition-colors text-[#333] dark:text-[#d8d8d8]`}
-                    >
-                        <PanelLeft className="h-4 w-4"/>
-                    </button>
+              <PanelLeft className="h-4 w-4" />
+            </button>
 
+            <button
+              onClick={() => {
+                createNewChat();
+              }}
+              className={`p-2 rounded-lg transition-colors text-[#333] dark:text-[#d8d8d8]`}
+            >
+              <MessageSquarePlus className="h-4 w-4" />
+            </button>
+          </header>
 
-                    <button
-                        onClick={() => {
-                            createNewChat();
-                        }}
-                        className={`p-2 rounded-lg transition-colors text-[#333] dark:text-[#d8d8d8]`}
-                    >
-                        <MessageSquarePlus className="h-4 w-4"/>
-                    </button>
-                </header>
-
-                {/* Chat messages */}
+          {/* Chat messages */}
+          <div className="w-full overflow-x-hidden overflow-y-auto border-t border-[rgba(0,0,0,0.1)] dark:border-[rgba(255,255,255,0.15)] custom-scrollbar">
+            {activeChat?.messages?.map((message, index) => (
+              <ChatMessage
+                key={message._id + index}
+                message={message}
+                isTyping={
+                  isTyping &&
+                  index === (activeChat.messages?.length || 0) - 1 &&
+                  message._source?.type === "assistant"
+                }
+              />
+            ))}
+            {!curChatEnd && activeChat?._id ? (
+              <ChatMessage
+                key={"last"}
+                message={{
+                  _id: activeChat?._id,
+                  _source: {
+                    type: "assistant",
+                    message: curMessage,
+                  },
+                }}
+                isTyping={!curChatEnd}
+              />
+            ) : null}
+            {!connected && (
+              <div className="absolute top-0 right-0 bottom-0 left-0 px-2 py-4 bg-red-500/10 rounded-md font-normal text-xs text-gray-400 flex items-center gap-4">
+                {t("assistant.chat.connectionError")}
                 <div
-                    className="w-full overflow-x-hidden overflow-y-auto border-t border-[rgba(0,0,0,0.1)] dark:border-[rgba(255,255,255,0.15)] custom-scrollbar">
-                    {activeChat?.messages?.map((message, index) => (
-                        <ChatMessage
-                            key={message._id + index}
-                            message={message}
-                            isTyping={
-                                isTyping &&
-                                index === (activeChat.messages?.length || 0) - 1 &&
-                                message._source?.type === "assistant"
-                            }
-                        />
-                    ))}
-                    {!curChatEnd && activeChat?._id ? (
-                        <ChatMessage
-                            key={"last"}
-                            message={{
-                                _id: activeChat?._id,
-                                _source: {
-                                    type: "assistant",
-                                    message: curMessage,
-                                },
-                            }}
-                            isTyping={!curChatEnd}
-                        />
-                    ) : null}
-                    <div ref={messagesEndRef}/>
+                  className="w-[96px] h-[24px] bg-[#0061FF] rounded-[12px] font-normal text-xs text-white flex items-center justify-center cursor-pointer"
+                  onClick={reconnect}
+                >
+                  {t("assistant.chat.reconnect")}
                 </div>
-            </div>
-        );
+              </div>
+            )}
+            <div ref={messagesEndRef} />
+          </div>
+        </div>
+      );
     }
-));
+  )
+);
 
 export default ChatAI;
diff --git a/src/components/Assistant/ChatInput.tsx b/src/components/Assistant/ChatInput.tsx
index 2c574419..ce3967ec 100644
--- a/src/components/Assistant/ChatInput.tsx
+++ b/src/components/Assistant/ChatInput.tsx
@@ -6,6 +6,7 @@ import {
   useRef,
   useEffect,
 } from "react";
+import { useTranslation } from "react-i18next";
 
 import AutoResizeTextarea from "./AutoResizeTextarea";
 import StopIcon from "@/icons/Stop";
@@ -31,6 +32,7 @@ export function ChatInput({
   isDeepThinkActive,
   setIsDeepThinkActive,
 }: ChatInputProps) {
+  const { t } = useTranslation();
   const [input, setInput] = useState("");
   const textareaRef = useRef<HTMLTextAreaElement>(null);
 
@@ -120,7 +122,9 @@ export function ChatInput({
             <button
               type="button"
               className={`h-5 px-2 inline-flex items-center border  rounded-[10px] transition-colors relative ${
-                isDeepThinkActive ? "bg-[rgba(0,114,255,0.3)] border-[rgba(0,114,255,0.3)]" : "border-[#262727]"
+                isDeepThinkActive
+                  ? "bg-[rgba(0,114,255,0.3)] border-[rgba(0,114,255,0.3)]"
+                  : "border-[#262727]"
               }`}
               onClick={DeepThinkClick}
             >
@@ -131,14 +135,20 @@ export function ChatInput({
                     : "text-[#333] dark:text-white"
                 }`}
               />
-              <span className={isDeepThinkActive ? "text-[#0072FF]" : "dark:text-white"}>
-                Deep Think
+              <span
+                className={
+                  isDeepThinkActive ? "text-[#0072FF]" : "dark:text-white"
+                }
+              >
+                {t("assistant.input.deepThink")}
               </span>
             </button>
             <button
               type="button"
               className={`h-5 px-2 inline-flex items-center border  rounded-[10px] transition-colors relative ${
-                isSearchActive ? "bg-[rgba(0,114,255,0.3)] border-[rgba(0,114,255,0.3)]" : "border-[#262727]"
+                isSearchActive
+                  ? "bg-[rgba(0,114,255,0.3)] border-[rgba(0,114,255,0.3)]"
+                  : "border-[#262727]"
               }`}
               onClick={SearchClick}
             >
@@ -149,8 +159,12 @@ export function ChatInput({
                     : "text-[#333] dark:text-white"
                 }`}
               />
-              <span className={isSearchActive ? "text-[#0072FF]" : "dark:text-white"}>
-                Search
+              <span
+                className={
+                  isSearchActive ? "text-[#0072FF]" : "dark:text-white"
+                }
+              >
+                {t("assistant.input.search")}
               </span>
             </button>
             {/* <button
diff --git a/src/components/Assistant/ChatMessage.tsx b/src/components/Assistant/ChatMessage.tsx
index d3843df4..255f2ca3 100644
--- a/src/components/Assistant/ChatMessage.tsx
+++ b/src/components/Assistant/ChatMessage.tsx
@@ -6,6 +6,7 @@ import Markdown from "./Markdown";
 import { formatThinkingMessage } from "@/utils/index";
 import logoImg from "@/assets/icon.svg";
 import { SourceResult } from "./SourceResult";
+import { useTranslation } from "react-i18next";
 
 interface ChatMessageProps {
   message: Message;
@@ -13,6 +14,7 @@ interface ChatMessageProps {
 }
 
 export function ChatMessage({ message, isTyping }: ChatMessageProps) {
+  const { t } = useTranslation();
   const [isThinkingExpanded, setIsThinkingExpanded] = useState(true);
   const [responseTime, setResponseTime] = useState(0);
   const startTimeRef = useRef<number | null>(null);
@@ -46,8 +48,14 @@ export function ChatMessage({ message, isTyping }: ChatMessageProps) {
           }`}
         >
           <p className="flex items-center gap-4 font-semibold text-sm text-[#333] dark:text-[#d8d8d8]">
-            {isAssistant ? <img src={logoImg} className="w-6 h-6" /> : null}
-            {isAssistant ? "Coco AI" : ""}
+            {isAssistant ? (
+              <img
+                src={logoImg}
+                className="w-6 h-6"
+                alt={t("assistant.message.logo")}
+              />
+            ) : null}
+            {isAssistant ? t("assistant.message.aiName") : ""}
           </p>
           <div className="prose dark:prose-invert prose-sm max-w-none">
             <div className="text-[#333] dark:text-[#d8d8d8] leading-relaxed">
@@ -70,14 +78,16 @@ export function ChatMessage({ message, isTyping }: ChatMessageProps) {
                               <>
                                 <Brain className="w-4 h-4 animate-pulse text-[#999999]" />
                                 <span className="text-xs text-[#999999] italic">
-                                  AI is thinking...
+                                  {t("assistant.message.thinking")}
                                 </span>
                               </>
                             ) : (
                               <>
                                 <Brain className="w-4 h-4 text-[#999999]" />
                                 <span className="text-xs text-[#999999]">
-                                  Thought for {responseTime.toFixed(1)} seconds
+                                  {t("assistant.message.thoughtTime", {
+                                    time: responseTime.toFixed(1),
+                                  })}
                                 </span>
                               </>
                             )}
diff --git a/src/components/Assistant/Sidebar.tsx b/src/components/Assistant/Sidebar.tsx
index c40d82f9..07437ae4 100644
--- a/src/components/Assistant/Sidebar.tsx
+++ b/src/components/Assistant/Sidebar.tsx
@@ -1,4 +1,6 @@
+import { useTranslation } from "react-i18next";
 import { MessageSquare, Plus } from "lucide-react";
+
 import type { Chat } from "./types";
 interface SidebarProps {
   chats: Chat[];
@@ -16,6 +18,8 @@ export function Sidebar({
   onSelectChat,
   className = "",
 }: SidebarProps) {
+  const { t } = useTranslation();
+
   return (
     <div className={`h-full flex flex-col ${className}`}>
       <div className="p-4">
@@ -24,7 +28,7 @@ export function Sidebar({
           className={`w-full flex items-center gap-3 px-4 py-3 text-sm font-medium rounded-xl transition-all border border-[#E6E6E6] dark:border-[#272626] text-gray-700 hover:bg-gray-50/80 active:bg-gray-100/80 dark:text-white dark:hover:bg-gray-600/50 dark:active:bg-gray-500/50`}
         >
           <Plus className={`h-4 w-4 text-[#0072FF] dark:text-[#0072FF]`} />
-          New Chat
+          {t("assistant.sidebar.newChat")}
         </button>
       </div>
       <div className="flex-1 overflow-y-auto px-3 pb-3 space-y-2 custom-scrollbar">
@@ -33,8 +37,8 @@ export function Sidebar({
             key={chat._id}
             className={`group relative rounded-xl transition-all ${
               activeChat._id === chat._id
-                ? 'bg-gray-100/80 dark:bg-gray-700/50'
-                : 'hover:bg-gray-50/80 dark:hover:bg-gray-600/30'
+                ? "bg-gray-100/80 dark:bg-gray-700/50"
+                : "hover:bg-gray-50/80 dark:hover:bg-gray-600/30"
             }`}
           >
             <button
@@ -44,15 +48,17 @@ export function Sidebar({
               <MessageSquare
                 className={`h-4 w-4 flex-shrink-0 ${
                   activeChat._id === chat._id
-                    ? 'text-[#0072FF] dark:text-[#0072FF]'
-                    : 'text-gray-400 dark:text-gray-500'
+                    ? "text-[#0072FF] dark:text-[#0072FF]"
+                    : "text-gray-400 dark:text-gray-500"
                 }`}
               />
-              <span className={`truncate ${
-                activeChat._id === chat._id
-                  ? 'text-gray-900 dark:text-white font-medium'
-                  : 'text-gray-600 dark:text-gray-300'
-              }`}>
+              <span
+                className={`truncate ${
+                  activeChat._id === chat._id
+                    ? "text-gray-900 dark:text-white font-medium"
+                    : "text-gray-600 dark:text-gray-300"
+                }`}
+              >
                 {chat.title || chat._id}
               </span>
             </button>
diff --git a/src/components/Assistant/SourceResult.tsx b/src/components/Assistant/SourceResult.tsx
index 6cac7089..b23541be 100644
--- a/src/components/Assistant/SourceResult.tsx
+++ b/src/components/Assistant/SourceResult.tsx
@@ -5,6 +5,8 @@ import {
   SquareArrowOutUpRight,
 } from "lucide-react";
 import { useState } from "react";
+import { useTranslation } from "react-i18next";
+
 import { OpenURLWithBrowser } from "@/utils/index";
 
 interface SourceResultProps {
@@ -21,6 +23,7 @@ interface SourceItem {
 }
 
 export function SourceResult({ text }: SourceResultProps) {
+  const { t } = useTranslation();
   const [isSourceExpanded, setIsSourceExpanded] = useState(false);
 
   if (!text?.includes("<Source")) {
@@ -42,13 +45,11 @@ export function SourceResult({ text }: SourceResultProps) {
   const sourceData = getSourceData();
 
   return (
-    <div
-      className={`mt-2 ${
-        isSourceExpanded
-          ? "rounded-lg overflow-hidden border border-[#E6E6E6] dark:border-[#272626]"
-          : ""
-      }`}
-    >
+    <div className={`mt-2 ${
+      isSourceExpanded
+        ? "rounded-lg overflow-hidden border border-[#E6E6E6] dark:border-[#272626]"
+        : ""
+    }`}>
       <button
         onClick={() => setIsSourceExpanded((prev) => !prev)}
         className={`inline-flex justify-between items-center gap-2 px-2 py-1 rounded-xl transition-colors ${
@@ -58,7 +59,7 @@ export function SourceResult({ text }: SourceResultProps) {
         <div className="flex gap-2">
           <Search className="w-4 h-4 text-[#999999] dark:text-[#999999]" />
           <span className="text-xs text-[#999999] dark:text-[#999999]">
-            Found {totalResults} results
+            {t('assistant.source.foundResults', { count: Number(totalResults) })}
           </span>
         </div>
         {isSourceExpanded ? (
diff --git a/src/components/Cloud/Cloud.tsx b/src/components/Cloud/Cloud.tsx
index d60c4783..b27a29eb 100644
--- a/src/components/Cloud/Cloud.tsx
+++ b/src/components/Cloud/Cloud.tsx
@@ -15,6 +15,7 @@ import {
   getCurrent as getCurrentDeepLinkUrls,
 } from "@tauri-apps/plugin-deep-link";
 import { invoke } from "@tauri-apps/api/core";
+import { useTranslation } from "react-i18next";
 
 import { UserProfile } from "./UserProfile";
 import { DataSourcesList } from "./DataSourcesList";
@@ -26,6 +27,8 @@ import { useConnectStore } from "@/stores/connectStore";
 import bannerImg from "@/assets/images/coco-cloud-banner.jpeg";
 
 export default function Cloud() {
+  const { t } = useTranslation();
+
   const SidebarRef = useRef<{ refreshData: () => void }>(null);
 
   const error = useAppStore((state) => state.error);
@@ -371,7 +374,7 @@ export default function Cloud() {
             {currentService?.auth_provider?.sso?.url ? (
               <div className="mb-8">
                 <h2 className="text-lg font-medium text-gray-900 dark:text-white mb-4">
-                  Account Information
+                  {t('cloud.accountInfo')}
                 </h2>
                 {currentService?.profile ? (
                   <UserProfile
@@ -387,7 +390,7 @@ export default function Cloud() {
                         className="px-6 py-2 bg-blue-500 text-white rounded-md hover:bg-blue-600 transition-colors mb-3"
                         onClick={LoginClick}
                       >
-                        Login
+                        {t('cloud.login')}
                       </button>
                     )}
 
@@ -398,7 +401,7 @@ export default function Cloud() {
                           className="px-6 py-2 text-white bg-red-500 rounded-md hover:bg-red-600 transition-colors mb-3"
                           onClick={() => setLoading(false)} // Reset loading state
                         >
-                          Cancel
+                          {t('cloud.cancel')}
                         </button>
                         <button
                           onClick={() => {
@@ -423,7 +426,7 @@ export default function Cloud() {
                         )
                       }
                     >
-                      EULA | Privacy Policy
+                      {t('cloud.privacyPolicy')}
                     </button>
                   </div>
                 )}
diff --git a/src/components/Cloud/Connect.tsx b/src/components/Cloud/Connect.tsx
index fd85035f..950e666f 100644
--- a/src/components/Cloud/Connect.tsx
+++ b/src/components/Cloud/Connect.tsx
@@ -1,17 +1,19 @@
 import React, { useState } from "react";
 import { ChevronLeft } from "lucide-react";
-import {useAppStore} from "@/stores/appStore";
+import { useTranslation } from "react-i18next";
 
+import { useAppStore } from "@/stores/appStore";
 
 interface ConnectServiceProps {
   setIsConnect: (isConnect: boolean) => void;
   onAddServer: (endpoint: string) => void;
 }
 
-export function Connect({ setIsConnect,  onAddServer }: ConnectServiceProps) {
+export function Connect({ setIsConnect, onAddServer }: ConnectServiceProps) {
+  const { t } = useTranslation();
   const [endpointLink, setEndpointLink] = useState("");
-  const [refreshLoading, ] = useState(false);
-  const [errorMessage, setErrorMessage] = useState(''); // State to store the error message
+  const [refreshLoading] = useState(false);
+  const [errorMessage, setErrorMessage] = useState(""); // State to store the error message
 
   const setError = useAppStore((state) => state.setError);
 
@@ -30,16 +32,19 @@ export function Connect({ setIsConnect,  onAddServer }: ConnectServiceProps) {
       setIsConnect(true); // Only set as connected if the server is added successfully
     } catch (err: any) {
       // Handle the error if something goes wrong
-      const errorMessage = typeof err === 'string' ? err : err?.message || 'An unknown error occurred.';
-      setErrorMessage("ERR:"+errorMessage);
+      const errorMessage =
+        typeof err === "string"
+          ? err
+          : err?.message || "An unknown error occurred.";
+      setErrorMessage("ERR:" + errorMessage);
       setError(errorMessage);
-      console.error('Error:', errorMessage);
+      console.error("Error:", errorMessage);
     }
   };
 
   // Function to close the error message
   const closeError = () => {
-    setErrorMessage('');
+    setErrorMessage("");
   };
 
   return (
@@ -52,16 +57,13 @@ export function Connect({ setIsConnect,  onAddServer }: ConnectServiceProps) {
           <ChevronLeft className="w-4 h-4" />
         </button>
         <div className="text-xl text-[#101010] dark:text-white">
-          Connecting to Your Coco-Server
+          {t("cloud.connect.title")}
         </div>
       </div>
 
       <div className="mb-8">
         <p className="text-gray-600 dark:text-gray-400">
-          Running your own private instance of coco-server ensures complete control over
-          your data, keeping it secure and accessible only within your environment.
-          Enjoy enhanced privacy, better performance, and seamless integration with your
-          internal systems.
+          {t("cloud.connect.description")}
         </p>
       </div>
 
@@ -71,23 +73,25 @@ export function Connect({ setIsConnect,  onAddServer }: ConnectServiceProps) {
             htmlFor="endpoint"
             className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-2.5"
           >
-            Server address
+            {t("cloud.connect.serverAddress")}
           </label>
           <div className="flex gap-2">
             <input
               type="text"
               id="endpoint"
               value={endpointLink}
-              placeholder="For example: https://coco.infini.cloud/"
+              placeholder={t("cloud.connect.serverPlaceholder")}
               onChange={(e) => setEndpointLink(e.target.value)}
               className="text-[#101010] dark:text-white flex-1 px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-transparent dark:bg-gray-800"
             />
             <button
               type="submit"
               className="px-6 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600 transition-colors"
-              onClick={()=>onAddServerClick(endpointLink)}
+              onClick={() => onAddServerClick(endpointLink)}
             >
-              {refreshLoading ? "Connecting..." : "Connect"}
+              {refreshLoading
+                ? t("cloud.connect.connecting")
+                : t("cloud.connect.connect")}
             </button>
           </div>
         </div>
@@ -95,30 +99,28 @@ export function Connect({ setIsConnect,  onAddServer }: ConnectServiceProps) {
 
       {/*//TODO move to outer container, move error state to global*/}
       {errorMessage && (
+        <div className="mb-8">
           <div
-              className="mb-8"
+            style={{
+              color: "red",
+              marginTop: "10px",
+              display: "block", // Makes sure the error message starts on a new line
+              marginBottom: "10px",
+            }}
           >
-            <div   style={{
-              color: 'red',
-              marginTop: '10px',
-              display: 'block',  // Makes sure the error message starts on a new line
-              marginBottom: '10px',
-            }}>
-              <span>{errorMessage}</span>
-              <button
-                  onClick={closeError}
-                  style={{
-                    background: 'none',
-                    border: 'none',
-                    color: 'red',
-                    cursor: 'pointer'
-                  }}
-              >
-              </button>
-            </div>
+            <span>{errorMessage}</span>
+            <button
+              onClick={closeError}
+              style={{
+                background: "none",
+                border: "none",
+                color: "red",
+                cursor: "pointer",
+              }}
+            ></button>
           </div>
+        </div>
       )}
-
     </div>
   );
 }
diff --git a/src/components/Cloud/DataSourcesList.tsx b/src/components/Cloud/DataSourcesList.tsx
index 1b54de34..19a9b47b 100644
--- a/src/components/Cloud/DataSourcesList.tsx
+++ b/src/components/Cloud/DataSourcesList.tsx
@@ -1,80 +1,79 @@
-import {useEffect, useState} from "react";
-import {RefreshCcw} from "lucide-react";
+import { useTranslation } from "react-i18next";
+import { useEffect, useState } from "react";
+import { RefreshCcw } from "lucide-react";
 
-import {DataSourceItem} from "./DataSourceItem";
-import {useConnectStore} from "@/stores/connectStore";
-import {useAppStore} from "@/stores/appStore";
-import {invoke} from "@tauri-apps/api/core";
+import { DataSourceItem } from "./DataSourceItem";
+import { useConnectStore } from "@/stores/connectStore";
+import { useAppStore } from "@/stores/appStore";
+import { invoke } from "@tauri-apps/api/core";
 
-export function DataSourcesList({server}: { server: string }) {
-    const datasourceData = useConnectStore((state) => state.datasourceData);
-    const setError = useAppStore((state) => state.setError);
-    const [refreshLoading, setRefreshLoading] = useState(false);
-    const setDatasourceData = useConnectStore((state) => state.setDatasourceData);
-    const setConnectorData = useConnectStore((state) => state.setConnectorData);
+export function DataSourcesList({ server }: { server: string }) {
+  const { t } = useTranslation();
+  const datasourceData = useConnectStore((state) => state.datasourceData);
+  const setError = useAppStore((state) => state.setError);
+  const [refreshLoading, setRefreshLoading] = useState(false);
+  const setDatasourceData = useConnectStore((state) => state.setDatasourceData);
+  const setConnectorData = useConnectStore((state) => state.setConnectorData);
 
-    function initServerAppData({server}: { server: string }) {
-        //fetch datasource data
-        invoke("get_connectors_by_server", {id: server})
-            .then((res: any) => {
-                console.log("get_connectors_by_server", res);
-                setConnectorData(res, server);
-            })
-            .catch((err: any) => {
-                setError(err);
-                throw err;  // Propagate error back up
-            })
-            .finally(() => {
+  function initServerAppData({ server }: { server: string }) {
+    //fetch datasource data
+    invoke("get_connectors_by_server", { id: server })
+      .then((res: any) => {
+        console.log("get_connectors_by_server", res);
+        setConnectorData(res, server);
+      })
+      .catch((err: any) => {
+        setError(err);
+        throw err; // Propagate error back up
+      })
+      .finally(() => {});
 
-            });
+    //fetch datasource data
+    invoke("get_datasources_by_server", { id: server })
+      .then((res: any) => {
+        console.log("get_datasources_by_server", res);
+        setDatasourceData(res, server);
+      })
+      .catch((err: any) => {
+        setError(err);
+        throw err; // Propagate error back up
+      })
+      .finally(() => {});
+  }
 
-        //fetch datasource data
-        invoke("get_datasources_by_server", {id: server})
-            .then((res: any) => {
-                console.log("get_datasources_by_server", res);
-                setDatasourceData(res, server);
-            })
-            .catch((err: any) => {
-                setError(err);
-                throw err;  // Propagate error back up
-            })
-            .finally(() => {
-            });
+  async function getDatasourceData() {
+    setRefreshLoading(true);
+    try {
+      initServerAppData({ server });
+    } catch (e) {
+      setError(e);
+    } finally {
+      setRefreshLoading(false);
     }
+  }
 
-    async function getDatasourceData() {
-        setRefreshLoading(true);
-        try {
-            initServerAppData({server});
-        } catch (e) {
-            setError(e);
-        } finally {
-            setRefreshLoading(false);
-        }
-    }
+  useEffect(() => {
+    getDatasourceData();
+  }, []);
 
-    useEffect(() => {
-        getDatasourceData()
-    }, [])
-
-    return (
-        <div className="space-y-4">
-            <h2 className="flex justify-between text-xl font-medium text-gray-900 dark:text-white">
-                Data Source
-                <button
-                    className="p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-300 rounded-[6px] bg-white dark:bg-gray-800 border border-[rgba(228,229,239,1)] dark:border-gray-700"
-                    onClick={() => getDatasourceData()}
-                >
-                    <RefreshCcw
-                        className={`w-3.5 h-3.5 ${refreshLoading ? "animate-spin" : ""}`}
-                    />
-                </button>
-            </h2>
-            <div className="space-y-4">
-                {datasourceData[server]?.map((source) => (
-                    <DataSourceItem key={source.id} {...source} />
-                ))}
-            </div>
-        </div>
-    );
+  return (
+    <div className="space-y-4">
+      <h2 className="flex justify-between text-xl font-medium text-gray-900 dark:text-white">
+        {t("cloud.dataSource.title")}
+        <button
+          className="p-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-300 rounded-[6px] bg-white dark:bg-gray-800 border border-[rgba(228,229,239,1)] dark:border-gray-700"
+          onClick={() => getDatasourceData()}
+        >
+          <RefreshCcw
+            className={`w-3.5 h-3.5 ${refreshLoading ? "animate-spin" : ""}`}
+          />
+        </button>
+      </h2>
+      <div className="space-y-4">
+        {datasourceData[server]?.map((source) => (
+          <DataSourceItem key={source.id} {...source} />
+        ))}
+      </div>
+    </div>
+  );
 }
diff --git a/src/components/Cloud/Divider.tsx b/src/components/Cloud/Divider.tsx
deleted file mode 100644
index 88697820..00000000
--- a/src/components/Cloud/Divider.tsx
+++ /dev/null
@@ -1,13 +0,0 @@
-
-export function Divider() {
-  return (
-    <div className="relative my-6">
-      <div className="absolute inset-0 flex items-center">
-        <div className="w-full border-t border-gray-600"></div>
-      </div>
-      <div className="relative flex justify-center text-sm">
-        <span className="px-2 text-gray-400 bg-gray-800">or continue with</span>
-      </div>
-    </div>
-  );
-}
\ No newline at end of file
diff --git a/src/components/Cloud/Sidebar.tsx b/src/components/Cloud/Sidebar.tsx
index a914ce4a..87711367 100644
--- a/src/components/Cloud/Sidebar.tsx
+++ b/src/components/Cloud/Sidebar.tsx
@@ -1,3 +1,4 @@
+import { useTranslation } from "react-i18next";
 import { forwardRef } from "react";
 import { Plus } from "lucide-react";
 
@@ -9,75 +10,79 @@ interface SidebarProps {
   serverList: any[];
 }
 
-export const Sidebar = forwardRef<{ refreshData: () => void; }, SidebarProps>(
-    ({ onAddServer, serverList }, _ref) => {
-      const currentService = useConnectStore((state) => state.currentService);
-      const setCurrentService = useConnectStore((state) => state.setCurrentService);
+export const Sidebar = forwardRef<{ refreshData: () => void }, SidebarProps>(
+  ({ onAddServer, serverList }, _ref) => {
+    const { t } = useTranslation();
+    const currentService = useConnectStore((state) => state.currentService);
+    const setCurrentService = useConnectStore(
+      (state) => state.setCurrentService
+    );
 
-      const onAddServerClick = () => {
-          onAddServer();
-      };
-
-      // Extracted server item rendering
-      const renderServerItem = (item: any) => {
-        return (
-            <div
-                key={item?.id}
-                className={`flex cursor-pointer items-center space-x-2 px-3 py-2 bg-blue-50 dark:bg-blue-900/20 text-blue-600 dark:text-blue-400 rounded-lg mb-2 ${
-                    currentService?.id === item?.id ? "dark:bg-blue-900/20 dark:bg-blue-900"  // Apply background color when selected
-                        : "bg-gray-50 dark:bg-gray-900" // Default background color when not selected
-                }`}
-                onClick={() => setCurrentService(item)}
-            >
-              <img
-                  src={item?.provider?.icon || cocoLogoImg}
-                  alt="LogoImg"
-                  className="w-5 h-5"
-              />
-              <span className="font-medium">{item?.name}</span>
-              <div className="flex-1" />
-              <button className="text-blue-600 dark:text-blue-400 hover:text-blue-700 dark:hover:text-blue-300">
-                {item?.available ? (
-                    <div className="w-3 h-3 rounded-full bg-[#00DB5E]" />
-                ) : (
-                    <div className="w-3 h-3 rounded-full bg-[#FF4747]" />
-                )}
-              </button>
-            </div>
-        );
-      };
+    const onAddServerClick = () => {
+      onAddServer();
+    };
 
+    // Extracted server item rendering
+    const renderServerItem = (item: any) => {
       return (
-          <div className="w-64 min-h-[550px] border-r border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800">
-            <div className="p-4 py-8">
-              {/* Render Built-in Servers */}
-              <div>
-                {serverList
-                    .filter((item) => item?.builtin)
-                    .map((item) => renderServerItem(item))}
-              </div>
-
-              <div className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">
-                Your Coco-Servers
-              </div>
-
-              {/* Render Non-Built-in Servers */}
-              <div>
-                {serverList
-                    .filter((item) => !item?.builtin)
-                    .map((item) => renderServerItem(item))}
-              </div>
-
-              <div className="space-y-2">
-                <button
-                    className="w-full flex items-center justify-center p-2 border-2 border-dashed border-gray-200 dark:border-gray-700 rounded-lg text-gray-400 dark:text-gray-500 hover:text-gray-600 dark:hover:text-gray-300 hover:border-gray-300 dark:hover:border-gray-600"
-                    onClick={onAddServerClick}
-                >
-                  <Plus className="w-5 h-5" />
-                </button>
-              </div>
-            </div>
-          </div>
+        <div
+          key={item?.id}
+          className={`flex cursor-pointer items-center space-x-2 px-3 py-2 bg-blue-50 dark:bg-blue-900/20 text-blue-600 dark:text-blue-400 rounded-lg mb-2 ${
+            currentService?.id === item?.id
+              ? "dark:bg-blue-900/20 dark:bg-blue-900"
+              : "bg-gray-50 dark:bg-gray-900"
+          }`}
+          onClick={() => setCurrentService(item)}
+        >
+          <img
+            src={item?.provider?.icon || cocoLogoImg}
+            alt="LogoImg"
+            className="w-5 h-5"
+          />
+          <span className="font-medium">{item?.name}</span>
+          <div className="flex-1" />
+          <button className="text-blue-600 dark:text-blue-400 hover:text-blue-700 dark:hover:text-blue-300">
+            {item?.available ? (
+              <div className="w-3 h-3 rounded-full bg-[#00DB5E]" />
+            ) : (
+              <div className="w-3 h-3 rounded-full bg-[#FF4747]" />
+            )}
+          </button>
+        </div>
       );
-    }
-);
\ No newline at end of file
+    };
+
+    return (
+      <div className="w-64 min-h-[550px] border-r border-gray-200 dark:border-gray-700 bg-white dark:bg-gray-800">
+        <div className="p-4 py-8">
+          {/* Render Built-in Servers */}
+          <div>
+            {serverList
+              .filter((item) => item?.builtin)
+              .map((item) => renderServerItem(item))}
+          </div>
+
+          <div className="text-sm font-medium text-gray-500 dark:text-gray-400 mb-2">
+            {t("cloud.sidebar.yourServers")}
+          </div>
+
+          {/* Render Non-Built-in Servers */}
+          <div>
+            {serverList
+              .filter((item) => !item?.builtin)
+              .map((item) => renderServerItem(item))}
+          </div>
+
+          <div className="space-y-2">
+            <button
+              className="w-full flex items-center justify-center p-2 border-2 border-dashed border-gray-200 dark:border-gray-700 rounded-lg text-gray-400 dark:text-gray-500 hover:text-gray-600 dark:hover:text-gray-300 hover:border-gray-300 dark:hover:border-gray-600"
+              onClick={onAddServerClick}
+            >
+              <Plus className="w-5 h-5" />
+            </button>
+          </div>
+        </div>
+      </div>
+    );
+  }
+);
diff --git a/src/components/Cloud/SocialButton.tsx b/src/components/Cloud/SocialButton.tsx
deleted file mode 100644
index 72ae3fa6..00000000
--- a/src/components/Cloud/SocialButton.tsx
+++ /dev/null
@@ -1,19 +0,0 @@
-import React from 'react';
-
-interface SocialButtonProps {
-  icon: React.ReactNode;
-  provider: string;
-  onClick: () => void;
-}
-
-export function SocialButton({ icon, provider, onClick }: SocialButtonProps) {
-  return (
-    <button
-      onClick={onClick}
-      className="w-full flex items-center justify-center gap-3 px-4 py-2 bg-gray-700 hover:bg-gray-600 text-white rounded-lg transition-colors"
-    >
-      {icon}
-      <span>Continue with {provider}</span>
-    </button>
-  );
-}
\ No newline at end of file
diff --git a/src/components/Cloud/UserProfile.tsx b/src/components/Cloud/UserProfile.tsx
index 9a32cfd3..6e90e220 100644
--- a/src/components/Cloud/UserProfile.tsx
+++ b/src/components/Cloud/UserProfile.tsx
@@ -18,10 +18,10 @@ interface UserProfileProps {
   onLogout: (server: string) => void;
 }
 
-export function UserProfile({ server,userInfo,onLogout }: UserProfileProps) {
+export function UserProfile({ server, userInfo, onLogout }: UserProfileProps) {
   const handleLogout = () => {
     onLogout(server);
-    console.log("Logout",server);
+    console.log("Logout", server);
   };
 
   return (
diff --git a/src/components/LangToggle.tsx b/src/components/LangToggle.tsx
deleted file mode 100644
index 753e4840..00000000
--- a/src/components/LangToggle.tsx
+++ /dev/null
@@ -1,55 +0,0 @@
-import { Menu, MenuButton, MenuItem, MenuItems } from "@headlessui/react";
-import { ChevronDown, Globe2 } from "lucide-react";
-import { useState } from "react";
-import { useTranslation } from "react-i18next";
-
-interface Language {
-  code: string;
-  name: string;
-  flag: string;
-  keyboard: string;
-}
-
-const languages: Language[] = [
-  { code: "en", name: "English", flag: "🇺🇸", keyboard: "E" },
-  { code: "zh", name: "中文", flag: "🇨🇳", keyboard: "Z" },
-];
-
-export default function LangToggle() {
-  const { i18n } = useTranslation();
-  const [currentLng, setCurrentLng] = useState(languages[0]);
-  const changeLanguage = (lng: Language) => {
-    setCurrentLng(lng);
-    i18n.changeLanguage(lng.code);
-  };
-
-  return (
-    <Menu>
-      <MenuButton className="inline-flex items-center gap-2 rounded-md py-1.5 px-3 text-sm/6 font-semibold dark:text-white shadow-inner dark:shadow-white/10 focus:outline-none dark:data-[hover]:bg-gray-700 dark:data-[open]:bg-gray-700 data-[focus]:outline-1 dark:data-[focus]:outline-white">
-        <Globe2 className="h-4 w-4 text-gray-600" />
-        <span className="text-base">{currentLng.flag}</span>
-        <span>{currentLng.name}</span>
-        <ChevronDown className="size-4 dark:fill-white/60" />
-      </MenuButton>
-      <MenuItems
-        anchor="bottom end"
-        className="w-[160px] origin-top-right rounded-xl border dark:border-white/5 dark:bg-white/5 p-1 text-sm/6 dark:text-white transition duration-100 ease-out [--anchor-gap:var(--spacing-1)] focus:outline-none data-[closed]:scale-95 data-[closed]:opacity-0"
-      >
-        {languages.map((language) => (
-          <MenuItem key={language.code}>
-            <button
-              className="group flex w-full items-center gap-2 rounded-lg py-1.5 px-3 dark:data-[focus]:bg-white/10"
-              onClick={() => changeLanguage(language)}
-            >
-              <span className="mr-1 text-base">{language.flag}</span>
-              <span>{language.name}</span>
-              <kbd className="ml-auto hidden font-sans text-xs dark:text-white/50 group-data-[focus]:inline">
-                ⌘{language.keyboard}
-              </kbd>
-            </button>
-          </MenuItem>
-        ))}
-      </MenuItems>
-    </Menu>
-  );
-}
diff --git a/src/components/Search/AutoResizeTextarea.tsx b/src/components/Search/AutoResizeTextarea.tsx
index 7e968cd0..e4a19a9d 100644
--- a/src/components/Search/AutoResizeTextarea.tsx
+++ b/src/components/Search/AutoResizeTextarea.tsx
@@ -1,4 +1,5 @@
 import { useEffect, useRef, useImperativeHandle, forwardRef } from "react";
+import { useTranslation } from "react-i18next";
 
 interface AutoResizeTextareaProps {
   input: string;
@@ -12,6 +13,7 @@ const AutoResizeTextarea = forwardRef<
   { reset: () => void; focus: () => void },
   AutoResizeTextareaProps
 >(({ input, setInput, handleKeyDown, connected }, ref) => {
+  const { t } = useTranslation();
   const textareaRef = useRef<HTMLTextAreaElement>(null);
 
   useEffect(() => {
@@ -47,8 +49,8 @@ const AutoResizeTextarea = forwardRef<
       autoCapitalize="none"
       spellCheck="false"
       className="text-base flex-1 outline-none min-w-[200px] text-[#333] dark:text-[#d8d8d8] placeholder-text-xs placeholder-[#999] dark:placeholder-gray-500 bg-transparent"
-      placeholder={connected ? "Ask whatever you want ..." : ""}
-      aria-label="Ask whatever you want ..."
+      placeholder={connected ? t('search.textarea.placeholder') : ""}
+      aria-label={t('search.textarea.ariaLabel')}
       value={input}
       onChange={(e) => setInput(e.target.value)}
       onKeyDown={(e) => handleKeyDown?.(e)}
diff --git a/src/components/Search/DocumentDetail.tsx b/src/components/Search/DocumentDetail.tsx
index 1c36b0b2..0addd5a6 100644
--- a/src/components/Search/DocumentDetail.tsx
+++ b/src/components/Search/DocumentDetail.tsx
@@ -1,4 +1,5 @@
 import React from "react";
+import { useTranslation } from "react-i18next";
 
 import { formatter } from "@/utils/index";
 import TypeIcon from "@/components/Common/Icons/TypeIcon";
@@ -8,10 +9,12 @@ interface DocumentDetailProps {
 }
 
 export const DocumentDetail: React.FC<DocumentDetailProps> = ({ document }) => {
+  const { t } = useTranslation();
+
   return (
     <div className="p-4">
       <div className="font-normal text-xs text-[#666] dark:text-[#999] mb-2">
-        Details
+        {t('search.document.details')}
       </div>
 
       {/* <div className="mb-4">
@@ -30,65 +33,64 @@ export const DocumentDetail: React.FC<DocumentDetailProps> = ({ document }) => {
 
       <div className="py-4 mt-4">
         <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-          <div className="text-[#666]">Name</div>
+          <div className="text-[#666]">{t('search.document.name')}</div>
           <div className="text-[#333] dark:text-[#D8D8D8] text-right w-60 break-words">
             {document?.title || "-"}
           </div>
         </div>
 
         <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-          <div className="text-[#666]">Source</div>
+          <div className="text-[#666]">{t('search.document.source')}</div>
           <div className="text-[#333] dark:text-[#D8D8D8] flex justify-end text-right w-56 break-words">
             <TypeIcon item={document} className="w-4 h-4 mr-1" />
             {document?.source?.name || "-"}
           </div>
         </div>
-        {/* <div className="flex justify-between font-normal text-xs mb-2.5">
-          <div className="text-[#666]">Where</div>
-          <div className="text-[#333] dark:text-[#D8D8D8] text-right w-56 break-words">
-            -
-          </div>
-        </div> */}
-        {document?.updated ? (
+
+        {document?.updated && (
           <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-            <div className="text-[#666]">Updated at</div>
+            <div className="text-[#666]">{t('search.document.updatedAt')}</div>
             <div className="text-[#333] dark:text-[#D8D8D8] text-right w-56 break-words">
               {document?.updated || "-"}
             </div>
           </div>
-        ) : null}
-        {document?.last_updated_by?.user?.username ? (
+        )}
+
+        {document?.last_updated_by?.user?.username && (
           <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-            <div className="text-[#666]">Update by</div>
+            <div className="text-[#666]">{t('search.document.updatedBy')}</div>
             <div className="text-[#333] dark:text-[#D8D8D8] text-right w-56 break-words">
               {document?.last_updated_by?.user?.username || "-"}
             </div>
           </div>
-        ) : null}
-        {document?.owner?.username ? (
+        )}
+
+        {document?.owner?.username && (
           <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-            <div className="text-[#666]">Created by</div>
+            <div className="text-[#666]">{t('search.document.createdBy')}</div>
             <div className="text-[#333] dark:text-[#D8D8D8] text-right w-56 break-words">
               {document?.owner?.username || "-"}
             </div>
           </div>
-        ) : null}
-        {document?.type ? (
+        )}
+
+        {document?.type && (
           <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-            <div className="text-[#666]">Type</div>
+            <div className="text-[#666]">{t('search.document.type')}</div>
             <div className="text-[#333] dark:text-[#D8D8D8] text-right w-56 break-words">
               {document?.type || "-"}
             </div>
           </div>
-        ) : null}
-        {document?.size ? (
+        )}
+
+        {document?.size && (
           <div className="flex justify-between flex-wrap font-normal text-xs mb-2.5">
-            <div className="text-[#666]">Size</div>
+            <div className="text-[#666]">{t('search.document.size')}</div>
             <div className="text-[#333] dark:text-[#D8D8D8] text-right w-56 break-words">
               {formatter.bytes(document?.size || 0)}
             </div>
           </div>
-        ) : null}
+        )}
       </div>
     </div>
   );
diff --git a/src/components/Search/DocumentList.tsx b/src/components/Search/DocumentList.tsx
index 79df061b..7aa8b29e 100644
--- a/src/components/Search/DocumentList.tsx
+++ b/src/components/Search/DocumentList.tsx
@@ -2,6 +2,7 @@ import React, { useState, useRef, useEffect, useCallback } from "react";
 import { useInfiniteScroll } from "ahooks";
 import { isTauri, invoke } from "@tauri-apps/api/core";
 import { open } from "@tauri-apps/plugin-shell";
+import { useTranslation } from "react-i18next";
 
 import { useSearchStore } from "@/stores/searchStore";
 import { SearchHeader } from "./SearchHeader";
@@ -28,6 +29,7 @@ export const DocumentList: React.FC<DocumentListProps> = ({
   viewMode,
   setViewMode,
 }) => {
+  const { t } = useTranslation();
   const sourceData = useSearchStore((state) => state.sourceData);
 
   const [selectedItem, setSelectedItem] = useState<number | null>(null);
@@ -200,11 +202,9 @@ export const DocumentList: React.FC<DocumentListProps> = ({
   }, [selectedItem]);
 
   return (
-    <div
-      className={`border-r border-gray-200 dark:border-gray-700 flex flex-col h-full ${
-        viewMode === "list" ? "w-[100%]" : "w-[50%]"
-      }`}
-    >
+    <div className={`border-r border-gray-200 dark:border-gray-700 flex flex-col h-full ${
+      viewMode === "list" ? "w-[100%]" : "w-[50%]"
+    }`}>
       <div className="px-2 flex-shrink-0">
         <SearchHeader
           total={total}
@@ -213,10 +213,7 @@ export const DocumentList: React.FC<DocumentListProps> = ({
         />
       </div>
 
-      <div
-        ref={containerRef}
-        className="flex-1 overflow-y-auto custom-scrollbar"
-      >
+      <div ref={containerRef} className="flex-1 overflow-y-auto custom-scrollbar">
         {data?.list.map((hit: any, index: number) => {
           const isSelected = selectedItem === index;
           const item = hit.document;
@@ -246,7 +243,7 @@ export const DocumentList: React.FC<DocumentListProps> = ({
 
         {loading && (
           <div className="flex justify-center py-4">
-            <span>Loading...</span>
+            <span>{t('search.list.loading')}</span>
           </div>
         )}
 
@@ -255,9 +252,13 @@ export const DocumentList: React.FC<DocumentListProps> = ({
             data-tauri-drag-region
             className="h-full w-full flex flex-col items-center"
           >
-            <img src={noDataImg} alt="no-data" className="w-16 h-16 mt-24" />
+            <img 
+              src={noDataImg} 
+              alt={t('search.list.noDataAlt')} 
+              className="w-16 h-16 mt-24" 
+            />
             <div className="mt-4 text-sm text-[#999] dark:text-[#666]">
-              No Results
+              {t('search.list.noResults')}
             </div>
           </div>
         )}
diff --git a/src/components/Search/Footer.tsx b/src/components/Search/Footer.tsx
index d20294a4..4f013970 100644
--- a/src/components/Search/Footer.tsx
+++ b/src/components/Search/Footer.tsx
@@ -1,5 +1,6 @@
 import { ArrowDown01, Command, CornerDownLeft } from "lucide-react";
 import { emit } from "@tauri-apps/api/event";
+import { useTranslation } from "react-i18next";
 
 import logoImg from "@/assets/icon.svg";
 import { useSearchStore } from "@/stores/searchStore";
@@ -12,6 +13,7 @@ interface FooterProps {
 }
 
 export default function Footer({}: FooterProps) {
+  const { t } = useTranslation();
   const sourceData = useSearchStore((state) => state.sourceData);
 
   function openSetting() {
@@ -32,23 +34,18 @@ export default function Footer({}: FooterProps) {
               src={logoImg}
               className="w-4 h-4 cursor-pointer"
               onClick={openSetting}
+              alt={t('search.footer.logoAlt')}
             />
           )}
           <span className="text-xs text-gray-500 dark:text-gray-400">
-            {sourceData?.source?.name || "v1.0.0"}
+            {sourceData?.source?.name || t('search.footer.version', { version: 'v1.0.0' })}
           </span>
         </div>
-
-        {/* {name ? (
-          <div className="flex gap-2 items-center text-[#666] text-xs">
-            <AppWindowMac className="w-5 h-5" /> {name}
-          </div>
-        ) : null} */}
       </div>
 
       <div className="flex items-center gap-3">
         <div className="gap-1 flex items-center text-[#666] dark:text-[#666] text-xs">
-          <span className="mr-1.5 ">Select:</span>
+          <span className="mr-1.5">{t('search.footer.select')}:</span>
           <kbd className="coco-modal-footer-commands-key pr-1">
             {isMac ? (
               <Command className="w-3 h-3" />
@@ -64,7 +61,7 @@ export default function Footer({}: FooterProps) {
           </kbd>
         </div>
         <div className="flex items-center text-[#666] dark:text-[#666] text-xs">
-          <span className="mr-1.5 ">Open: </span>
+          <span className="mr-1.5">{t('search.footer.open')}: </span>
           <kbd className="coco-modal-footer-commands-key pr-1">
             <CornerDownLeft className="w-3 h-3" />
           </kbd>
diff --git a/src/components/Search/InputBox.tsx b/src/components/Search/InputBox.tsx
index b8daebf8..1feb3117 100644
--- a/src/components/Search/InputBox.tsx
+++ b/src/components/Search/InputBox.tsx
@@ -2,6 +2,7 @@ import { ArrowBigLeft, Search, Send, Globe, Brain } from "lucide-react";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { listen } from "@tauri-apps/api/event";
 import { invoke, isTauri } from "@tauri-apps/api/core";
+import { useTranslation } from "react-i18next";
 
 import ChatSwitch from "@/components/Common/ChatSwitch";
 import AutoResizeTextarea from "./AutoResizeTextarea";
@@ -40,6 +41,9 @@ export default function ChatInput({
   isDeepThinkActive,
   setIsDeepThinkActive,
 }: ChatInputProps) {
+
+  const { t } = useTranslation();
+
   const showTooltip = useAppStore(
     (state: { showTooltip: boolean }) => state.showTooltip
   );
@@ -259,7 +263,7 @@ export default function ChatInput({
               autoCapitalize="none"
               spellCheck="false"
               className="text-base font-normal flex-1 outline-none min-w-[200px] text-[#333] dark:text-[#d8d8d8] placeholder-text-xs placeholder-[#999] dark:placeholder-gray-500 bg-transparent"
-              placeholder="Search whatever you want ..."
+              placeholder={t('search.input.searchPlaceholder')}
               value={inputValue}
               onChange={(e) => {
                 onSend(e.target.value);
@@ -347,12 +351,12 @@ export default function ChatInput({
 
         {!connected && isChatMode ? (
           <div className="absolute top-0 right-0 bottom-0 left-0 px-2 py-4 bg-red-500/10 rounded-md font-normal text-xs text-gray-400 flex items-center gap-4">
-            Unable to connect to the server
+            {t('search.input.connectionError')}
             <div
               className="w-[96px] h-[24px] bg-[#0061FF] rounded-[12px] font-normal text-xs text-white flex items-center justify-center cursor-pointer"
               onClick={ReconnectClick}
             >
-              Reconnect ({countdown})
+              {t('search.input.reconnect')} ({countdown})
             </div>
           </div>
         ) : null}
@@ -376,7 +380,7 @@ export default function ChatInput({
                 }`}
               />
               <span className={isDeepThinkActive ? "text-[#0072FF]" : ""}>
-                Deep Think
+                {t('search.input.deepThink')}
               </span>
             </button>
             <button
@@ -391,7 +395,7 @@ export default function ChatInput({
                 }`}
               />
               <span className={isSearchActive ? "text-[#0072FF]" : ""}>
-                Search
+                {t('search.input.search')}
               </span>
             </button>
             {/*<button*/}
diff --git a/src/components/Search/ListRight.tsx b/src/components/Search/ListRight.tsx
index 5aa1430b..3d33efbb 100644
--- a/src/components/Search/ListRight.tsx
+++ b/src/components/Search/ListRight.tsx
@@ -2,110 +2,124 @@ import TypeIcon from "@/components/Common/Icons/TypeIcon";
 import RichIcon from "@/components/Common/Icons/RichIcon";
 
 interface ListRightProps {
-    item: any;
-    isSelected: boolean;
-    showIndex: boolean;
-    currentIndex: number;
-    goToTwoPage: (item: any) => void;
+  item: any;
+  isSelected: boolean;
+  showIndex: boolean;
+  currentIndex: number;
+  goToTwoPage: (item: any) => void;
 }
 
 export default function ListRight({
-    item,
-    isSelected,
-    showIndex,
-    currentIndex,
-    goToTwoPage
+  item,
+  isSelected,
+  showIndex,
+  currentIndex,
+  goToTwoPage,
 }: ListRightProps) {
-
-    return (
-        <div className="flex-1 text-right min-w-[160px] h-full pl-5 text-[12px] flex gap-2 items-center justify-end relative">
-            {item?.rich_categories ? null : (
-                <div
-                    className="w-4 h-4 cursor-pointer"
-                    onClick={(e) => {
-                        e.stopPropagation();
-                        goToTwoPage(item);
-                    }}
-                >
-                    <TypeIcon
-                        item={item}
-                        className="w-4 h-4 cursor-pointer"
-                        onClick={(e: React.MouseEvent) => {
-                            e.stopPropagation();
-                            goToTwoPage(item);
-                        }}
-                    />
-                </div>
-            )}
-
-            {item?.rich_categories ? (
-                <div className="flex items-center justify-end max-w-[calc(100%-20px)] whitespace-nowrap">
-                    <RichIcon
-                        item={item}
-                        className="w-4 h-4 mr-2 cursor-pointer"
-                        onClick={(e) => {
-                            e.stopPropagation();
-                            goToTwoPage(item);
-                        }}
-                    />
-                    <span
-                        className={`${isSelected ? "text-[#C8C8C8]" : "text-[#666]"} text-right truncate`}
-                    >
-                        {item?.rich_categories?.map(
-                            (rich_item: any, index: number) => {
-                                if (
-                                    item?.rich_categories.length > 2 &&
-                                    index === item?.rich_categories.length - 1
-                                )
-                                    return "";
-                                return (index !== 0 ? "/" : "") + rich_item?.label;
-                            }
-                        )}
-                    </span>
-                    {item?.rich_categories.length > 2 ? (
-                        <span className={`${isSelected ? "text-[#C8C8C8]" : "text-[#666]"} text-right truncate`}>
-                            {"/" + item?.rich_categories?.at(-1)?.label}
-                        </span>
-                    ) : null}
-                </div>
-            ) : item?.category || item?.subcategory ? (
-                <span
-                    className={`text-[12px] truncate ${isSelected ? "text-[#DCDCDC]" : "text-[#999] dark:text-[#666]"
-                        }`}
-                >
-                    {(item?.category || "") + (item?.subcategory ? `/${item?.subcategory}` : "")}
-                </span>
-            ) : (
-                <span
-                    className={`text-[12px] truncate ${isSelected ? "text-[#DCDCDC]" : "text-[#999] dark:text-[#666]"
-                        }`}
-                >
-                    {item?.last_updated_by?.user?.username || item?.owner?.username || item?.updated || item?.created || item?.type || ""}
-                </span>
-            )}
-
-            {isSelected ? (
-                <div
-                    className={`absolute ${showIndex && currentIndex < 10 ? "right-7" : "right-0"
-                        } w-4 h-4 flex items-end justify-center font-normal text-xs text-[#333] leading-[14px] bg-[#ccc] dark:bg-[#6B6B6B] rounded-md ${isSelected
-                            ? "shadow-[-6px_0px_6px_2px_#950599]"
-                            : "shadow-[-6px_0px_6px_2px_#fff] dark:shadow-[-6px_0px_6px_2px_#000]"
-                        }`}
-                >
-                    ↩︎
-                </div>
-            ) : null}
-
-            {showIndex && currentIndex < 10 ? (
-                <div
-                    className={`absolute right-0 w-4 h-4 flex items-center justify-center font-normal text-xs text-[#333] leading-[14px] bg-[#ccc] dark:bg-[#6B6B6B] rounded-md ${isSelected
-                        ? "shadow-[-6px_0px_6px_2px_#950599]"
-                        : "shadow-[-6px_0px_6px_2px_#fff] dark:shadow-[-6px_0px_6px_2px_#000]"
-                        }`}
-                >
-                    {currentIndex}
-                </div>
-            ) : null}
+  return (
+    <div className="flex-1 text-right min-w-[160px] h-full pl-5 text-[12px] flex gap-2 items-center justify-end relative">
+      {item?.rich_categories ? null : (
+        <div
+          className="w-4 h-4 cursor-pointer"
+          onClick={(e) => {
+            e.stopPropagation();
+            goToTwoPage(item);
+          }}
+        >
+          <TypeIcon
+            item={item}
+            className="w-4 h-4 cursor-pointer"
+            onClick={(e: React.MouseEvent) => {
+              e.stopPropagation();
+              goToTwoPage(item);
+            }}
+          />
         </div>
-    );
-}
\ No newline at end of file
+      )}
+
+      {item?.rich_categories ? (
+        <div className="flex items-center justify-end max-w-[calc(100%-20px)] whitespace-nowrap">
+          <RichIcon
+            item={item}
+            className="w-4 h-4 mr-2 cursor-pointer"
+            onClick={(e) => {
+              e.stopPropagation();
+              goToTwoPage(item);
+            }}
+          />
+          <span
+            className={`${
+              isSelected ? "text-[#C8C8C8]" : "text-[#666]"
+            } text-right truncate`}
+          >
+            {item?.rich_categories?.map((rich_item: any, index: number) => {
+              if (
+                item?.rich_categories.length > 2 &&
+                index === item?.rich_categories.length - 1
+              )
+                return "";
+              return (index !== 0 ? "/" : "") + rich_item?.label;
+            })}
+          </span>
+          {item?.rich_categories.length > 2 ? (
+            <span
+              className={`${
+                isSelected ? "text-[#C8C8C8]" : "text-[#666]"
+              } text-right truncate`}
+            >
+              {"/" + item?.rich_categories?.at(-1)?.label}
+            </span>
+          ) : null}
+        </div>
+      ) : item?.category || item?.subcategory ? (
+        <span
+          className={`text-[12px] truncate ${
+            isSelected ? "text-[#DCDCDC]" : "text-[#999] dark:text-[#666]"
+          }`}
+        >
+          {(item?.category || "") +
+            (item?.subcategory ? `/${item?.subcategory}` : "")}
+        </span>
+      ) : (
+        <span
+          className={`text-[12px] truncate ${
+            isSelected ? "text-[#DCDCDC]" : "text-[#999] dark:text-[#666]"
+          }`}
+        >
+          {item?.last_updated_by?.user?.username ||
+            item?.owner?.username ||
+            item?.updated ||
+            item?.created ||
+            item?.type ||
+            ""}
+        </span>
+      )}
+
+      {isSelected ? (
+        <div
+          className={`absolute ${
+            showIndex && currentIndex < 10 ? "right-7" : "right-0"
+          } w-4 h-4 flex items-end justify-center font-normal text-xs text-[#333] leading-[14px] bg-[#ccc] dark:bg-[#6B6B6B] rounded-md ${
+            isSelected
+              ? "shadow-[-6px_0px_6px_2px_#950599]"
+              : "shadow-[-6px_0px_6px_2px_#fff] dark:shadow-[-6px_0px_6px_2px_#000]"
+          }`}
+        >
+          ↩︎
+        </div>
+      ) : null}
+
+      {showIndex && currentIndex < 10 ? (
+        <div
+          className={`absolute right-0 w-4 h-4 flex items-center justify-center font-normal text-xs text-[#333] leading-[14px] bg-[#ccc] dark:bg-[#6B6B6B] rounded-md ${
+            isSelected
+              ? "shadow-[-6px_0px_6px_2px_#950599]"
+              : "shadow-[-6px_0px_6px_2px_#fff] dark:shadow-[-6px_0px_6px_2px_#000]"
+          }`}
+        >
+          {currentIndex}
+        </div>
+      ) : null}
+    </div>
+  );
+}
diff --git a/src/components/Search/Search.tsx b/src/components/Search/Search.tsx
index 8286f65f..0caa9e08 100644
--- a/src/components/Search/Search.tsx
+++ b/src/components/Search/Search.tsx
@@ -2,6 +2,7 @@ import { useEffect, useState, useCallback, useRef } from "react";
 import { Command } from "lucide-react";
 import { invoke } from "@tauri-apps/api/core";
 // import { isTauri } from "@tauri-apps/api/core";
+import { useTranslation } from "react-i18next";
 
 import DropdownList from "./DropdownList";
 import Footer from "./Footer";
@@ -18,6 +19,7 @@ interface SearchProps {
 }
 
 function Search({ isChatMode, input }: SearchProps) {
+  const { t } = useTranslation();
   const sourceData = useSearchStore((state) => state.sourceData);
 
   const [IsError, setIsError] = useState<boolean>(false);
@@ -149,10 +151,10 @@ function Search({ isChatMode, input }: SearchProps) {
         >
           <img src={noDataImg} alt="no-data" className="w-16 h-16 mt-24" />
           <div className="mt-4 text-sm text-[#999] dark:text-[#666]">
-            No Results
+            {t('search.main.noResults')}
           </div>
           <div className="mt-10 text-sm  text-[#333] dark:text-[#D8D8D8] flex">
-            Ask Coco AI
+            {t('search.main.askCoco')}
             {isMac ? (
               <span className="ml-3 w-5 h-5 rounded-[6px] border border-[#D8D8D8] flex justify-center items-center">
                 <Command className="w-3 h-3" />
diff --git a/src/components/Search/SearchHeader.tsx b/src/components/Search/SearchHeader.tsx
index db478b3f..906359a4 100644
--- a/src/components/Search/SearchHeader.tsx
+++ b/src/components/Search/SearchHeader.tsx
@@ -1,5 +1,6 @@
 import React from "react";
 import { AlignLeft, Columns2 } from "lucide-react";
+import { useTranslation } from "react-i18next";
 
 interface SearchHeaderProps {
   total: number;
@@ -12,14 +13,16 @@ export const SearchHeader: React.FC<SearchHeaderProps> = ({
   viewMode,
   setViewMode,
 }) => {
+  const { t } = useTranslation();
+
   return (
     <div className="flex items-center justify-between py-1">
       <div className="text-xs text-gray-600 dark:text-gray-400">
-        Found
+        {t('search.header.found')}
         <span className="px-1 font-medium text-gray-900 dark:text-gray-100">
           {total}
         </span>
-        results
+        {t('search.header.results')}
       </div>
       <div className="flex gap-2">
         <div className="flex bg-gray-100 dark:bg-gray-800 rounded-lg p-0.5">
diff --git a/src/components/Settings/AboutView.tsx b/src/components/Settings/AboutView.tsx
index c7e02224..c8f941bc 100644
--- a/src/components/Settings/AboutView.tsx
+++ b/src/components/Settings/AboutView.tsx
@@ -1,35 +1,47 @@
 import { Globe, Github } from "lucide-react";
+import { useTranslation } from "react-i18next";
 
 import { useTheme } from "@/contexts/ThemeContext";
 import { OpenURLWithBrowser } from "@/utils";
 import logoLight from "@/assets/images/logo-text-light.svg";
 import logoDark from "@/assets/images/logo-text-dark.svg";
 
-export default function AboutView(){
-
+export default function AboutView() {
+  const { t } = useTranslation();
   const { theme } = useTheme();
 
-  const logo = theme === 'dark' ? logoDark : logoLight
+  const logo = theme === "dark" ? logoDark : logoLight;
 
   return (
     <div className="flex justify-center items-center flex-col h-[calc(100vh-170px)]">
       <div>
-          <img src={logo} className="w-48 dark:text-white"/>
+        <img src={logo} className="w-48 dark:text-white" alt={t('settings.about.logo')} />
       </div>
       <div className="mt-8 font-medium text-gray-900 dark:text-gray-100">
-        Search, Connect, Collaborate—All in one place
+        {t('settings.about.slogan')}
       </div>
       <div className="flex justify-center items-center mt-10">
-        <button onClick={() => OpenURLWithBrowser('https://coco.rs')} className="w-6 h-6 mr-2.5 flex justify-center rounded-[6px] border-[1px] gray-200 dark:border-gray-700"><Globe className="w-3 text-blue-500"/></button>
-        <button onClick={() => OpenURLWithBrowser('https://github.com/infinilabs/coco-app')} className="w-6 h-6 flex justify-center rounded-[6px] border-[1px] gray-200 dark:border-gray-700" ><Github className="w-3 text-blue-500"/></button>
+        <button
+          onClick={() => OpenURLWithBrowser("https://coco.rs")}
+          className="w-6 h-6 mr-2.5 flex justify-center rounded-[6px] border-[1px] gray-200 dark:border-gray-700"
+          aria-label={t('settings.about.website')}
+        >
+          <Globe className="w-3 text-blue-500" />
+        </button>
+        <button
+          onClick={() => OpenURLWithBrowser("https://github.com/infinilabs/coco-app")}
+          className="w-6 h-6 flex justify-center rounded-[6px] border-[1px] gray-200 dark:border-gray-700"
+          aria-label={t('settings.about.github')}
+        >
+          <Github className="w-3 text-blue-500" />
+        </button>
       </div>
       <div className="mt-8 text-sm text-gray-500 dark:text-gray-400">
-        Version 1.0.0
+        {t('settings.about.version', { version: '1.0.0' })}
       </div>
       <div className="mt-4 text-sm text-gray-500 dark:text-gray-400">
-        ©{new Date().getFullYear()} INFINI Labs, All Rights Reserved.
+        {t('settings.about.copyright', { year: new Date().getFullYear() })}
       </div>
     </div>
-  )
-  
-}
\ No newline at end of file
+  );
+}
diff --git a/src/components/Settings/AdvancedSettings.tsx b/src/components/Settings/AdvancedSettings.tsx
index 1d92c109..218a1d5e 100644
--- a/src/components/Settings/AdvancedSettings.tsx
+++ b/src/components/Settings/AdvancedSettings.tsx
@@ -1,5 +1,6 @@
 import { useEffect } from "react";
 import { Globe } from "lucide-react";
+import { useTranslation } from "react-i18next";
 
 import SettingsItem from "./SettingsItem";
 import { useAppStore } from "@/stores/appStore";
@@ -12,6 +13,7 @@ const ENDPOINTS = [
 ];
 
 export default function AdvancedSettings() {
+  const { t } = useTranslation();
   const endpoint = useAppStore(state => state.endpoint);
   const setEndpoint = useAppStore(state => state.setEndpoint);
 
@@ -25,20 +27,18 @@ export default function AdvancedSettings() {
     <div className="space-y-8">
       <div>
         <h2 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">
-          Advanced Settings
+          {t('settings.advanced.title')}
         </h2>
         <div className="space-y-6">
           <SettingsItem
             icon={Globe}
-            title="API Endpoint"
-            description="Domain name for interface and websocket"
+            title={t('settings.advanced.endpoint.title')}
+            description={t('settings.advanced.endpoint.description')}
           >
             <div className={`p-4 rounded-lg`}>
               <select
                 value={endpoint}
-                onChange={(e) =>
-                  onChangeEndpoint(e.target.value as AppEndpoint)
-                }
+                onChange={(e) => onChangeEndpoint(e.target.value as AppEndpoint)}
                 className={`w-full px-3 py-2 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent bg-white border-gray-300 text-gray-900 dark:bg-gray-800 dark:border-gray-600 dark:text-white`}
               >
                 {ENDPOINTS.map(({ value, label }) => (
diff --git a/src/components/Settings/GeneralSettings.tsx b/src/components/Settings/GeneralSettings.tsx
index 3172346c..0e98c379 100644
--- a/src/components/Settings/GeneralSettings.tsx
+++ b/src/components/Settings/GeneralSettings.tsx
@@ -8,12 +8,15 @@ import {
   Power,
   Tags,
   // Trash2,
+  Globe,
 } from "lucide-react";
+import { useTranslation } from "react-i18next";
 import { isTauri, invoke } from "@tauri-apps/api/core";
 import {
   isEnabled,
   // enable, disable
 } from "@tauri-apps/plugin-autostart";
+import { emit } from '@tauri-apps/api/event';
 
 import SettingsItem from "./SettingsItem";
 import SettingsToggle from "./SettingsToggle";
@@ -34,6 +37,7 @@ export function ThemeOption({
   theme: AppTheme;
 }) {
   const { theme: currentTheme, changeTheme } = useTheme();
+  const { t } = useTranslation();
 
   const isSelected = currentTheme === theme;
 
@@ -45,41 +49,36 @@ export function ThemeOption({
           ? "border-blue-500 bg-blue-50 dark:bg-blue-900/20"
           : "border-gray-200 dark:border-gray-700 hover:border-gray-300 dark:hover:border-gray-600"
       } flex flex-col items-center justify-center space-y-2 transition-all`}
+      title={title}
     >
       <Icon className={`w-6 h-6 ${isSelected ? "text-blue-500" : ""}`} />
-      <span
-        className={`text-sm font-medium ${isSelected ? "text-blue-500" : ""}`}
-      >
-        {title}
+      <span className={`text-sm font-medium ${isSelected ? "text-blue-500" : ""}`}>
+        {t(`settings.appearance.${theme}`)}
       </span>
     </button>
   );
 }
 
 export default function GeneralSettings() {
+  const { t, i18n } = useTranslation();
+
   const [launchAtLogin, setLaunchAtLogin] = useState(true);
 
   const showTooltip = useAppStore((state) => state.showTooltip);
   const setShowTooltip = useAppStore((state) => state.setShowTooltip);
+  const language = useAppStore((state) => state.language);
+  const setLanguage = useAppStore((state) => state.setLanguage);
 
-  // const setAuth = useAuthStore((state) => state.setAuth);
-  // const setUserInfo = useAuthStore((state) => state.setUserInfo);
-  // const endpoint = useAppStore((state) => state.endpoint);
-
-  useEffect(() => {
-    const fetchAutoStartStatus = async () => {
-      if (isTauri()) {
-        try {
-          const status = await isEnabled();
-          setLaunchAtLogin(status);
-        } catch (error) {
-          console.error("Failed to fetch autostart status:", error);
-        }
+  const fetchAutoStartStatus = async () => {
+    if (isTauri()) {
+      try {
+        const status = await isEnabled();
+        setLaunchAtLogin(status);
+      } catch (error) {
+        console.error("Failed to fetch autostart status:", error);
       }
-    };
-
-    fetchAutoStartStatus();
-  }, []);
+    }
+  };
 
   const enableAutoStart = async () => {
     if (isTauri()) {
@@ -118,7 +117,11 @@ export default function GeneralSettings() {
   }
 
   useEffect(() => {
+    fetchAutoStartStatus();
     getCurrentShortcut();
+    if (language) {
+      i18n.changeLanguage(language);
+    }
   }, []);
 
   const changeShortcut = (key: Shortcut) => {
@@ -162,31 +165,42 @@ export default function GeneralSettings() {
   //   useAppStore.persist.clearStorage();
   // }, [endpoint]);
 
+  const currentLanguage = language || i18n.language;
+
+  const changeLanguage = async (lang: string) => {
+    i18n.changeLanguage(lang);
+    setLanguage(lang);
+    //
+    try {
+      await emit('language-changed', { language: lang });
+    } catch (error) {
+      console.error('Failed to emit language change event:', error);
+    }
+  };
+
   return (
     <div className="space-y-8">
       <div>
         <h2 className="text-lg font-semibold text-gray-900 dark:text-white mb-4">
-          General Settings
+          {t('settings.general')}
         </h2>
         <div className="space-y-6">
           <SettingsItem
             icon={Power}
-            title="Startup"
-            description="Automatically start Coco when you login"
+            title={t('settings.startup.title')}
+            description={t('settings.startup.description')}
           >
             <SettingsToggle
               checked={launchAtLogin}
-              onChange={(value) =>
-                value ? enableAutoStart() : disableAutoStart()
-              }
-              label="Launch at login"
+              onChange={(value) => value ? enableAutoStart() : disableAutoStart()}
+              label={t('settings.startup.toggle')}
             />
           </SettingsItem>
 
           <SettingsItem
             icon={Command}
-            title="Coco Hotkey"
-            description="Global shortcut to open Coco"
+            title={t('settings.hotkey.title')}
+            description={t('settings.hotkey.description')}
           >
             <div className="flex items-center gap-2">
               <ShortcutItem
@@ -200,75 +214,47 @@ export default function GeneralSettings() {
             </div>
           </SettingsItem>
 
-          {/* <SettingsItem
-            icon={Monitor}
-            title="Window Mode"
-            description="Choose how Coco appears on your screen"
-          >
-            <SettingsSelect
-              options={["Standard Window", "Compact Mode", "Full Screen"]}
-            />
-          </SettingsItem> */}
-
           <SettingsItem
             icon={Palette}
-            title="Appearance"
-            description="Choose your preferred theme"
+            title={t('settings.appearance.title')}
+            description={t('settings.appearance.description')}
           >
             <div></div>
           </SettingsItem>
           <div className="grid grid-cols-3 gap-4">
-            <ThemeOption icon={Sun} title="Light" theme="light" />
-            <ThemeOption icon={Moon} title="Dark" theme="dark" />
-            <ThemeOption icon={Monitor} title="Auto" theme="auto" />
+            <ThemeOption icon={Sun} title={t('settings.appearance.light')} theme="light" />
+            <ThemeOption icon={Moon} title={t('settings.appearance.dark')} theme="dark" />
+            <ThemeOption icon={Monitor} title={t('settings.appearance.auto')} theme="auto" />
           </div>
+          
+          <SettingsItem
+            icon={Globe}
+            title={t('settings.language.title')}
+            description={t('settings.language.description')}
+          >
+            <div className="flex items-center gap-2">
+              <select
+                value={currentLanguage}
+                onChange={(e) => changeLanguage(e.target.value)}
+                className="px-3 py-1.5 bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-blue-500"
+              >
+                <option value="en">{t('settings.language.english')}</option>
+                <option value="zh">{t('settings.language.chinese')}</option>
+              </select>
+            </div>
+          </SettingsItem>
 
           <SettingsItem
             icon={Tags}
-            title="Tooltip"
-            description="Tooltip display for shortcut keys"
+            title={t('settings.tooltip.title')}
+            description={t('settings.tooltip.description')}
           >
             <SettingsToggle
               checked={showTooltip}
               onChange={(value) => setShowTooltip(value)}
-              label="Tooltip display"
+              label={t('settings.tooltip.toggle')}
             />
           </SettingsItem>
-
-          {/* <SettingsItem
-            icon={Layout}
-            title="Text Size"
-            description="Adjust the application text size"
-          >
-            <SettingsSelect options={["Small", "Medium", "Large"]} />
-          </SettingsItem> */}
-
-          {/* <SettingsItem
-            icon={Star}
-            title="Favorites"
-            description="Manage your favorite commands"
-          >
-            <button className="text-sm text-blue-600 dark:text-blue-400 hover:text-blue-700 dark:hover:text-blue-300 font-medium transition-colors duration-200">
-              Manage Favorites
-            </button>
-          </SettingsItem> */}
-
-          {/* <SettingsItem
-            icon={Trash2}
-            title="Clear Cache"
-            description="Clear cached data and settings"
-          >
-            <div className="space-y-2">
-              <div className="flex gap-2">
-                <button
-                  onClick={clearAllCache}
-                  className=" px-4 py-2 text-red-500 hover:text-red-600 dark:text-red-400 dark:hover:text-red-300 border border-red-200 dark:border-red-800 rounded-md hover:bg-red-50 dark:hover:bg-red-900/20 transition-colors"
-                >
-                  Clear All Cache
-                </button>
-              </div>
-            </div>
-          </SettingsItem> */}
         </div>
       </div>
     </div>
diff --git a/src/components/Settings/ShortcutItem.tsx b/src/components/Settings/ShortcutItem.tsx
index ffb06a15..edf4e555 100644
--- a/src/components/Settings/ShortcutItem.tsx
+++ b/src/components/Settings/ShortcutItem.tsx
@@ -1,5 +1,8 @@
-import { formatKey, sortKeys } from "@/utils/keyboardUtils";
 import { X } from "lucide-react";
+import { useTranslation } from "react-i18next";
+
+import { formatKey, sortKeys } from "@/utils/keyboardUtils";
+
 interface ShortcutItemProps {
   shortcut: string[];
   isEditing: boolean;
@@ -17,6 +20,8 @@ export function ShortcutItem({
   onSave,
   onCancel,
 }: ShortcutItemProps) {
+  const { t } = useTranslation();
+  
   const renderKeys = (keys: string[]) => {
     const sortedKeys = sortKeys(keys);
     return sortedKeys.map((key, index) => (
@@ -30,9 +35,7 @@ export function ShortcutItem({
   };
 
   return (
-    <div
-      className={`flex items-center justify-between p-4 rounded-lg bg-gray-50 dark:bg-gray-700`}
-    >
+    <div className={`flex items-center justify-between p-4 rounded-lg bg-gray-50 dark:bg-gray-700`}>
       <div className="flex items-center gap-4">
         {isEditing ? (
           <>
@@ -41,7 +44,7 @@ export function ShortcutItem({
                 renderKeys(currentKeys)
               ) : (
                 <span className={`italic text-gray-500 dark:text-gray-400`}>
-                  Press keys...
+                  {t('settings.shortcut.pressKeys')}
                 </span>
               )}
             </div>
@@ -52,7 +55,7 @@ export function ShortcutItem({
                 className={`px-3 py-1 text-sm rounded bg-blue-500 text-white hover:bg-blue-600 dark:bg-blue-600 dark:text-white dark:hover:bg-blue-700
                    disabled:opacity-50 disabled:cursor-not-allowed`}
               >
-                Save
+                {t('settings.shortcut.save')}
               </button>
               <button
                 onClick={onCancel}
@@ -69,7 +72,7 @@ export function ShortcutItem({
               onClick={onEdit}
               className={`px-3 py-1 text-sm rounded bg-gray-200 text-gray-700 hover:bg-gray-300 dark:bg-gray-600 dark:text-gray-200 dark:hover:bg-gray-500`}
             >
-              Edit
+              {t('settings.shortcut.edit')}
             </button>
           </>
         )}
diff --git a/src/i18n.ts b/src/i18n.ts
index 0cd3ed2c..031b3b88 100644
--- a/src/i18n.ts
+++ b/src/i18n.ts
@@ -1,23 +1,27 @@
 import i18n from "i18next";
 import { initReactI18next } from "react-i18next";
+import LanguageDetector from 'i18next-browser-languagedetector';
 
 import enTranslation from "./locales/en/translation.json";
 import zhTranslation from "./locales/zh/translation.json";
 
-i18n.use(initReactI18next).init({
-  resources: {
-    en: {
-      translation: enTranslation,
+i18n
+  .use(LanguageDetector)
+  .use(initReactI18next)
+  .init({
+    resources: {
+      en: {
+        translation: enTranslation,
+      },
+      zh: {
+        translation: zhTranslation,
+      },
     },
-    zh: {
-      translation: zhTranslation,
+    lng: "en",
+    fallbackLng: "en",
+    interpolation: {
+      escapeValue: false,
     },
-  },
-  lng: "en",
-  fallbackLng: "en",
-  interpolation: {
-    escapeValue: false,
-  },
-});
+  });
 
 export default i18n;
diff --git a/src/locales/en/translation.json b/src/locales/en/translation.json
index d8dc32dc..0c9c79f5 100644
--- a/src/locales/en/translation.json
+++ b/src/locales/en/translation.json
@@ -1,7 +1,165 @@
 {
-  "welcome": "Welcome to Coco App",
-  "home": "Home",
-  "settings": "Settings",
-  "activeTheme": "Current theme:",
-  "InputMessage": "Input your message here..."
-}
+  "settings": {
+    "general": "General Settings",
+    "startup": {
+      "title": "Startup",
+      "description": "Automatically start Coco when you login",
+      "toggle": "Launch at login"
+    },
+    "hotkey": {
+      "title": "Coco Hotkey",
+      "description": "Global shortcut to open Coco"
+    },
+    "appearance": {
+      "title": "Appearance",
+      "description": "Choose your preferred theme",
+      "light": "Light",
+      "dark": "Dark",
+      "auto": "Auto"
+    },
+    "language": {
+      "title": "Language",
+      "description": "Choose your preferred language",
+      "english": "English",
+      "chinese": "中文"
+    },
+    "tooltip": {
+      "title": "Tooltip",
+      "description": "Tooltip display for shortcut keys",
+      "toggle": "Tooltip display"
+    },
+    "shortcut": {
+      "pressKeys": "Press keys...",
+      "save": "Save",
+      "edit": "Edit"
+    },
+    "about": {
+      "logo": "Coco Logo",
+      "slogan": "Search, Connect, Collaborate—All in one place",
+      "website": "Visit Website",
+      "github": "Visit GitHub",
+      "version": "Version {{version}}",
+      "copyright": "©{{year}} INFINI Labs, All Rights Reserved."
+    },
+    "advanced": {
+      "title": "Advanced Settings",
+      "endpoint": {
+        "title": "API Endpoint",
+        "description": "Domain name for interface and websocket"
+      }
+    },
+    "tabs": {
+      "general": "General",
+      "extensions": "Extensions",
+      "connect": "Connect",
+      "advanced": "Advanced",
+      "about": "About",
+      "extensionsContent": "Extensions settings content",
+      "advancedContent": "Advanced Settings content"
+    }
+  },
+  "search": {
+    "textarea": {
+      "placeholder": "Ask whatever you want ...",
+      "ariaLabel": "Ask whatever you want"
+    },
+    "document": {
+      "details": "Details",
+      "name": "Name",
+      "source": "Source",
+      "updatedAt": "Updated at",
+      "updatedBy": "Updated by",
+      "createdBy": "Created by",
+      "type": "Type",
+      "size": "Size"
+    },
+    "list": {
+      "loading": "Loading...",
+      "noResults": "No Results",
+      "noDataAlt": "No data image"
+    },
+    "footer": {
+      "logoAlt": "Coco Logo",
+      "version": "{{version}}",
+      "select": "Select",
+      "open": "Open"
+    },
+    "input": {
+      "searchPlaceholder": "Search whatever you want ...",
+      "connectionError": "Unable to connect to the server",
+      "reconnect": "Reconnect",
+      "deepThink": "Deep Think",
+      "search": "Search"
+    },
+    "main": {
+      "noDataAlt": "No data image",
+      "noResults": "No Results",
+      "askCoco": "Ask Coco AI"
+    },
+    "header": {
+      "found": "Found",
+      "results": "results"
+    }
+  },
+  "assistant": {
+    "chat": {
+      "openChat": "Open Chat Window",
+      "newChat": "New Chat",
+      "connectionError": "Unable to connect to the server",
+      "reconnect": "Reconnect"
+    },
+    "input": {
+      "stopMessage": "Stop message",
+      "deepThink": "Deep Think",
+      "deepThinkTooltip": "Enable deep thinking mode",
+      "search": "Search",
+      "searchTooltip": "Enable search mode"
+    },
+    "message": {
+      "logo": "Coco AI Logo",
+      "aiName": "Coco AI",
+      "thinking": "AI is thinking...",
+      "thoughtTime": "Thought for {{time}} seconds",
+      "thinkingButton": "View thinking process"
+    },
+    "sidebar": {
+      "newChat": "New Chat",
+      "newChatTooltip": "Create a new chat",
+      "selectChat": "Select this chat",
+      "untitledChat": "Untitled Chat"
+    },
+    "source": {
+      "foundResults": "Found {{count}} results"
+    }
+  },
+  "cloud": {
+    "banner": "Banner Image",
+    "accountInfo": "Account Information",
+    "login": "Login",
+    "cancel": "Cancel",
+    "copyUrl": "Copy URL",
+    "privacyPolicy": "EULA | Privacy Policy",
+    "connect": {
+      "back": "Back",
+      "title": "Connecting to Your Coco-Server",
+      "description": "Running your own private instance of coco-server ensures complete control over your data, keeping it secure and accessible only within your environment. Enjoy enhanced privacy, better performance, and seamless integration with your internal systems.",
+      "serverAddress": "Server address",
+      "serverPlaceholder": "For example: https://coco.infini.cloud/",
+      "connecting": "Connecting...",
+      "connect": "Connect",
+      "closeError": "Close error message"
+    },
+    "dataSource": {
+      "title": "Data Source",
+      "refresh": "Refresh data source list"
+    },
+    "sidebar": {
+      "selectServer": "Select Server",
+      "serverLogo": "Server Logo",
+      "serverOnline": "Server Online",
+      "serverOffline": "Server Offline",
+      "yourServers": "Your Coco-Servers",
+      "addServer": "Add New Server"
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/locales/zh/translation.json b/src/locales/zh/translation.json
index e9803e7a..2f174b44 100644
--- a/src/locales/zh/translation.json
+++ b/src/locales/zh/translation.json
@@ -1,7 +1,165 @@
 {
-  "welcome": "欢迎使用 Coco App",
-  "home": "主页",
-  "settings": "设置",
-  "activeTheme": "当前主题：",
-  "InputMessage": "在此输入您的消息..."
-}
+  "settings": {
+    "general": "通用设置",
+    "startup": {
+      "title": "启动项",
+      "description": "登录时自动启动 Coco",
+      "toggle": "开机自启"
+    },
+    "hotkey": {
+      "title": "快捷键",
+      "description": "打开 Coco 的全局快捷键"
+    },
+    "appearance": {
+      "title": "外观",
+      "description": "选择您喜欢的主题",
+      "light": "浅色",
+      "dark": "深色",
+      "auto": "自动"
+    },
+    "language": {
+      "title": "语言",
+      "description": "选择您的首选语言",
+      "english": "English",
+      "chinese": "中文"
+    },
+    "tooltip": {
+      "title": "提示",
+      "description": "快捷键提示显示",
+      "toggle": "显示提示"
+    },
+    "shortcut": {
+      "pressKeys": "请按键...",
+      "save": "保存",
+      "edit": "编辑"
+    },
+    "about": {
+      "logo": "Coco 标志",
+      "slogan": "搜索、连接、协作 — 一站式解决方案",
+      "website": "访问官网",
+      "github": "访问 GitHub",
+      "version": "版本 {{version}}",
+      "copyright": "©{{year}} INFINI Labs，保留所有权利。"
+    },
+    "advanced": {
+      "title": "高级设置",
+      "endpoint": {
+        "title": "API 接口",
+        "description": "接口和 WebSocket 的域名"
+      }
+    },
+    "tabs": {
+      "general": "通用",
+      "extensions": "扩展",
+      "connect": "连接",
+      "advanced": "高级",
+      "about": "关于",
+      "extensionsContent": "扩展设置内容",
+      "advancedContent": "高级设置内容"
+    }
+  },
+  "search": {
+    "textarea": {
+      "placeholder": "问我任何问题...",
+      "ariaLabel": "输入你想问的问题"
+    },
+    "document": {
+      "details": "详细信息",
+      "name": "名称",
+      "source": "来源",
+      "updatedAt": "更新时间",
+      "updatedBy": "更新者",
+      "createdBy": "创建者",
+      "type": "类型",
+      "size": "大小"
+    },
+    "list": {
+      "loading": "加载中...",
+      "noResults": "暂无结果",
+      "noDataAlt": "无数据图片"
+    },
+    "footer": {
+      "logoAlt": "Coco 图标",
+      "version": "{{version}}",
+      "select": "选择",
+      "open": "打开"
+    },
+    "input": {
+      "searchPlaceholder": "搜索任何内容...",
+      "connectionError": "无法连接到服务器",
+      "reconnect": "重新连接",
+      "deepThink": "深度思考",
+      "search": "搜索"
+    },
+    "main": {
+      "noDataAlt": "无数据图片",
+      "noResults": "暂无结果",
+      "askCoco": "询问 Coco AI"
+    },
+    "header": {
+      "found": "找到",
+      "results": "个结果"
+    }
+  },
+  "assistant": {
+    "chat": {
+      "openChat": "打开聊天窗口",
+      "newChat": "新建对话",
+      "connectionError": "无法连接到服务器",
+      "reconnect": "重新连接"
+    },
+    "input": {
+      "stopMessage": "停止生成",
+      "deepThink": "深度思考",
+      "deepThinkTooltip": "启用深度思考模式",
+      "search": "搜索",
+      "searchTooltip": "启用搜索模式"
+    },
+    "message": {
+      "logo": "Coco AI 图标",
+      "aiName": "Coco AI",
+      "thinking": "AI 正在思考...",
+      "thoughtTime": "思考了 {{time}} 秒",
+      "thinkingButton": "查看思考过程"
+    },
+    "sidebar": {
+      "newChat": "新建对话",
+      "newChatTooltip": "创建新的对话",
+      "selectChat": "选择此对话",
+      "untitledChat": "未命名对话"
+    },
+    "source": {
+      "foundResults": "找到 {{count}} 个结果"
+    }
+  },
+  "cloud": {
+    "banner": "横幅图片",
+    "accountInfo": "账户信息",
+    "login": "登录",
+    "cancel": "取消",
+    "copyUrl": "复制链接",
+    "privacyPolicy": "用户协议 | 隐私政策",
+    "connect": {
+      "back": "返回",
+      "title": "连接到您的 Coco-Server",
+      "description": "运行您自己的私有 coco-server 实例可以确保对数据的完全控制，使其在您的环境中保持安全且仅可访问。享受增强的隐私保护、更好的性能和与内部系统的无缝集成。",
+      "serverAddress": "服务器地址",
+      "serverPlaceholder": "例如：https://coco.infini.cloud/",
+      "connecting": "连接中...",
+      "connect": "连接",
+      "closeError": "关闭错误提示"
+    },
+    "dataSource": {
+      "title": "数据源",
+      "refresh": "刷新数据源列表"
+    },
+    "sidebar": {
+      "selectServer": "选择服务器",
+      "serverLogo": "服务器图标",
+      "serverOnline": "服务器在线",
+      "serverOffline": "服务器离线",
+      "yourServers": "您的 Coco-Servers",
+      "addServer": "添加新服务器"
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/main.tsx b/src/main.tsx
index 5072cb57..b087ae5a 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -4,6 +4,7 @@ import { RouterProvider } from "react-router-dom";
 
 import { ThemeProvider } from "./contexts/ThemeContext";
 import { router } from "./routes/index";
+import './i18n';
 
 import "./main.css";
 
diff --git a/src/pages/settings/index.tsx b/src/pages/settings/index.tsx
index 46b27902..49818a89 100644
--- a/src/pages/settings/index.tsx
+++ b/src/pages/settings/index.tsx
@@ -2,6 +2,7 @@ import { useEffect, useState } from "react";
 import { Tab, TabGroup, TabList, TabPanel, TabPanels } from "@headlessui/react";
 import { Settings, Puzzle, Settings2, Info, Server } from "lucide-react";
 import { useSearchParams } from "react-router-dom";
+import { useTranslation } from "react-i18next";
 
 import SettingsPanel from "@/components/Settings/SettingsPanel";
 import GeneralSettings from "@/components/Settings/GeneralSettings";
@@ -11,6 +12,7 @@ import Footer from "@/components/Footer";
 import ApiDetails from "@/components/Common/ApiDetails";
 
 function SettingsPage() {
+  const { t } = useTranslation();
   const [defaultIndex, setDefaultIndex] = useState<number>(0);
 
   const [searchParams] = useSearchParams();
@@ -21,11 +23,11 @@ function SettingsPage() {
   }, [name]);
 
   const tabs = [
-    { name: "General", icon: Settings },
-    { name: "Extensions", icon: Puzzle },
-    { name: "Connect", icon: Server },
-    { name: "Advanced", icon: Settings2 },
-    { name: "About", icon: Info },
+    { name: t('settings.tabs.general'), icon: Settings },
+    { name: t('settings.tabs.extensions'), icon: Puzzle },
+    { name: t('settings.tabs.connect'), icon: Server },
+    { name: t('settings.tabs.advanced'), icon: Settings2 },
+    { name: t('settings.tabs.about'), icon: Info },
   ];
 
   return (
@@ -71,7 +73,7 @@ function SettingsPage() {
               <TabPanel>
                 <SettingsPanel title="">
                   <div className="text-gray-600 dark:text-gray-400">
-                    Extensions settings content
+                    {t('settings.tabs.extensionsContent')}
                   </div>
                 </SettingsPanel>
               </TabPanel>
@@ -81,7 +83,7 @@ function SettingsPage() {
               <TabPanel>
                 <SettingsPanel title="">
                   <div className="text-gray-600 dark:text-gray-400">
-                    Advanced Settings content
+                    {t('settings.tabs.advancedContent')}
                   </div>
                 </SettingsPanel>
               </TabPanel>
diff --git a/src/routes/layout.tsx b/src/routes/layout.tsx
index 4d8a2da5..e0a39ba1 100644
--- a/src/routes/layout.tsx
+++ b/src/routes/layout.tsx
@@ -1,11 +1,15 @@
 import { useEffect } from "react";
 import { Outlet, useLocation } from "react-router-dom";
+import { useTranslation } from 'react-i18next';
+import { listen } from '@tauri-apps/api/event';
 
+import { useAppStore } from '@/stores/appStore';
 import useEscape from "@/hooks/useEscape";
 import useSettingsWindow from "@/hooks/useSettingsWindow";
 
 export default function Layout() {
   const location = useLocation();
+
   function updateBodyClass(path: string) {
     const body = document.body;
     body.className = "";
@@ -14,6 +18,7 @@ export default function Layout() {
       body.classList.add("input-body");
     }
   }
+
   useEffect(() => {
     updateBodyClass(location.pathname);
   }, [location.pathname]);
@@ -22,5 +27,23 @@ export default function Layout() {
 
   useSettingsWindow();
 
+  const { i18n } = useTranslation();
+  const language = useAppStore((state) => state.language);
+
+  useEffect(() => {
+    if (language) {
+      i18n.changeLanguage(language);
+    }
+
+    const unlistenLanguageChange = listen('language-changed', (event: any) => {
+      const { language } = event.payload;
+      i18n.changeLanguage(language);
+    });
+
+    return () => {
+      unlistenLanguageChange.then(unlisten => unlisten());
+    };
+  }, []);
+
   return <Outlet />;
 }
diff --git a/src/stores/appStore.ts b/src/stores/appStore.ts
index 39b1835e..dc04166e 100644
--- a/src/stores/appStore.ts
+++ b/src/stores/appStore.ts
@@ -19,11 +19,12 @@ export type IAppStore = {
   // ssoServerID: string;
   // setSSOServerID: (ssoServerID: string) => void,
 
-
   endpoint: AppEndpoint,
   endpoint_http: string,
   endpoint_websocket: string,
   setEndpoint: (endpoint: AppEndpoint) => void,
+  language: string;
+  setLanguage: (language: string) => void;
   initializeListeners: () => void;
 };
 
@@ -62,6 +63,8 @@ export const useAppStore = create<IAppStore>()(
           endpoint_websocket
         });
       },
+      language: "en",
+      setLanguage: (language: string) => set({ language }),
       initializeListeners: () => {
         listen(ENDPOINT_CHANGE_EVENT, (event: any) => {
           const { endpoint, endpoint_http, endpoint_websocket } = event.payload;
@@ -79,6 +82,7 @@ export const useAppStore = create<IAppStore>()(
         endpoint: state.endpoint,
         endpoint_http: state.endpoint_http,
         endpoint_websocket: state.endpoint_websocket,
+        language: state.language,
       }),
     }
   )