diff --git a/.vscode/settings.json b/.vscode/settings.json
index 6d6475d4..c3b518dc 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -10,5 +10,10 @@
   "cSpell.words": [
     "masto",
     "Nuxtodon"
-  ]
+  ],
+  "i18n-ally.localesPaths": [
+    "locales"
+  ],
+  "i18n-ally.keystyle": "nested",
+  "i18n-ally.sourceLanguage": "en-US"
 }
diff --git a/components/nav/NavFooter.vue b/components/nav/NavFooter.vue
index 5ce5f787..35182589 100644
--- a/components/nav/NavFooter.vue
+++ b/components/nav/NavFooter.vue
@@ -5,17 +5,20 @@ const buildTimeAgo = useTimeAgo(buildTime)
 
 <template>
   <footer p4 text-sm text-secondary-light flex="~ col">
-    <div flex="~ gap2">
-      <button i-ri-sun-line dark:i-ri-moon-line text-lg mb4 @click="toggleDark()" />
+    <div flex="~ gap2" items-center mb4>
+      <button i-ri-sun-line dark:i-ri-moon-line text-lg @click="toggleDark()" />
       <button
-        text-lg mb4
+        text-lg
         :class="isZenMode ? 'i-ri:layout-right-2-line' : 'i-ri:layout-right-line'"
         @click="toggleZenMode()"
       />
+      <NavSelectLanguage />
+    </div>
+    <div>
+      <button cursor-pointer hover:underline @click="openPreviewHelp">
+        Show intro
+      </button>
     </div>
-    <button cursor-pointer hover:underline @click="openPreviewHelp">
-      Show intro
-    </button>
     <div>A Mastodon client made with 🧡</div>
     <div>Built <time :datetime="buildTime" :title="buildTime">{{ buildTimeAgo }}</time> · <a href="https://github.com/elk-zone/elk" target="_blank">GitHub</a></div>
   </footer>
diff --git a/components/nav/NavSide.vue b/components/nav/NavSide.vue
index 87e26447..4f9edff1 100644
--- a/components/nav/NavSide.vue
+++ b/components/nav/NavSide.vue
@@ -1,21 +1,27 @@
+<script lang="ts" setup>
+import { useI18n } from 'vue-i18n'
+
+const { t } = useI18n()
+</script>
+
 <template>
   <nav px3 py4 flex="~ col gap2" text-lg>
     <template v-if="currentUser">
-      <NavSideItem text="Home" to="/home" icon="i-ri:home-5-line" />
-      <NavSideItem text="Notifications" to="/notifications" icon="i-ri:notification-4-line" />
+      <NavSideItem :text="t('nav_side.home')" to="/home" icon="i-ri:home-5-line" />
+      <NavSideItem :text="t('nav_side.notifications')" to="/notifications" icon="i-ri:notification-4-line" />
     </template>
-    <NavSideItem text="Explore" to="/explore" icon="i-ri:hashtag" />
-    <NavSideItem text="Local" to="/public/local" icon="i-ri:group-2-line " />
-    <NavSideItem text="Federated" to="/public" icon="i-ri:earth-line" />
+    <NavSideItem :text="t('nav_side.explore')" to="/explore" icon="i-ri:hashtag" />
+    <NavSideItem :text="t('nav_side.local')" to="/public/local" icon="i-ri:group-2-line " />
+    <NavSideItem :text="t('nav_side.federated')" to="/public" icon="i-ri:earth-line" />
     <template v-if="currentUser">
-      <NavSideItem text="Conversations" to="/conversations" icon="i-ri:at-line" />
-      <NavSideItem text="Favourites" to="/favourites" icon="i-ri:heart-3-line" />
-      <NavSideItem text="Bookmarks" to="/bookmarks" icon="i-ri:bookmark-line " />
+      <NavSideItem :text="t('nav_side.conversations')" to="/conversations" icon="i-ri:at-line" />
+      <NavSideItem :text="t('nav_side.favourites')" to="/favourites" icon="i-ri:heart-3-line" />
+      <NavSideItem :text="t('nav_side.bookmarks')" to="/bookmarks" icon="i-ri:bookmark-line " />
       <NavSideItem :to="getAccountPath(currentUser.account)" icon="i-ri:list-check-2-line">
         <template #icon>
           <AccountAvatar :account="currentUser.account" h="1.2em" />
         </template>
-        <ContentRich :content="getDisplayName(currentUser.account, { rich: true })" :emojis="currentUser.account.emojis" />
+        <ContentRich :content="getDisplayName(currentUser.account, { rich: true }) || t('nav_side.profile')" :emojis="currentUser.account.emojis" />
       </NavSideItem>
     </template>
   </nav>
diff --git a/components/nav/SelectLanguage.vue b/components/nav/SelectLanguage.vue
new file mode 100644
index 00000000..8f41c6a5
--- /dev/null
+++ b/components/nav/SelectLanguage.vue
@@ -0,0 +1,36 @@
+<script lang="ts" setup>
+import { useI18n } from 'vue-i18n'
+
+const { locale } = useI18n()
+const languageList = [
+  {
+    value: 'en-US',
+    label: 'English',
+  },
+  {
+    value: 'zh-CN',
+    label: '简体中文',
+  },
+]
+</script>
+
+<template>
+  <CommonTooltip placement="bottom" content="Select Language">
+    <CommonDropdown>
+      <button align-top>
+        <div i-ri:earth-line text-lg />
+      </button>
+
+      <template #popper>
+        <CommonDropdownItem
+          v-for="item in languageList"
+          :key="item.value"
+          :checked="item.value === locale"
+          @click="locale = item.value"
+        >
+          {{ item.label }}
+        </CommonDropdownItem>
+      </template>
+    </CommonDropdown>
+  </CommonTooltip>
+</template>
diff --git a/locales/en-US.json b/locales/en-US.json
new file mode 100644
index 00000000..2ce264bb
--- /dev/null
+++ b/locales/en-US.json
@@ -0,0 +1,13 @@
+{
+  "nav_side": {
+    "home": "Home",
+    "notifications": "Notifications",
+    "explore": "Explore",
+    "local": "Local",
+    "federated": "Federated",
+    "conversations": "Conversations",
+    "favourites": "Favourites",
+    "bookmarks": "Bookmarks",
+    "profile": "Profile"
+  }
+}
diff --git a/locales/zh-CN.json b/locales/zh-CN.json
new file mode 100644
index 00000000..f8d0b374
--- /dev/null
+++ b/locales/zh-CN.json
@@ -0,0 +1,13 @@
+{
+  "nav_side": {
+    "bookmarks": "书签",
+    "conversations": "私信",
+    "explore": "探索",
+    "favourites": "喜欢",
+    "federated": "跨站",
+    "home": "主页",
+    "local": "本地",
+    "notifications": "通知",
+    "profile": "个人资料"
+  }
+}
diff --git a/package.json b/package.json
index af111a36..5202f683 100644
--- a/package.json
+++ b/package.json
@@ -67,6 +67,7 @@
     "unplugin-auto-import": "^0.12.0",
     "vite-plugin-inspect": "^0.7.9",
     "vitest": "^0.25.3",
+    "vue-i18n": "^9.2.2",
     "vue-safe-teleport": "^0.1.1",
     "vue-virtual-scroller": "2.0.0-beta.3"
   }
diff --git a/plugins/i18n.ts b/plugins/i18n.ts
new file mode 100644
index 00000000..a4f23e9a
--- /dev/null
+++ b/plugins/i18n.ts
@@ -0,0 +1,25 @@
+import { createI18n } from 'vue-i18n'
+import enUS from '../locales/en-US.json'
+import zhCn from '../locales/zh-CN.json'
+
+/** Default language environment */
+export const defaultLocale = 'en-US'
+
+export const messages = {
+  'en-US': enUS,
+  'zh-CN': zhCn,
+}
+
+/** Language Environment List */
+export const localeList = Object.keys(messages)
+
+export default defineNuxtPlugin(({ vueApp }) => {
+  const i18n = createI18n({
+    legacy: false,
+    globalInjection: true,
+    locale: defaultLocale,
+    messages,
+  })
+
+  vueApp.use(i18n)
+})
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 0f11239b..b872ef88 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -52,6 +52,7 @@ specifiers:
   unplugin-auto-import: ^0.12.0
   vite-plugin-inspect: ^0.7.9
   vitest: ^0.25.3
+  vue-i18n: ^9.2.2
   vue-safe-teleport: ^0.1.1
   vue-virtual-scroller: 2.0.0-beta.3
 
@@ -107,6 +108,7 @@ devDependencies:
   unplugin-auto-import: 0.12.0
   vite-plugin-inspect: 0.7.9
   vitest: 0.25.3
+  vue-i18n: 9.2.2
   vue-safe-teleport: 0.1.1
   vue-virtual-scroller: 2.0.0-beta.3
 
@@ -655,6 +657,44 @@ packages:
       - supports-color
     dev: true
 
+  /@intlify/core-base/9.2.2:
+    resolution: {integrity: sha512-JjUpQtNfn+joMbrXvpR4hTF8iJQ2sEFzzK3KIESOx+f+uwIjgw20igOyaIdhfsVVBCds8ZM64MoeNSx+PHQMkA==}
+    engines: {node: '>= 14'}
+    dependencies:
+      '@intlify/devtools-if': 9.2.2
+      '@intlify/message-compiler': 9.2.2
+      '@intlify/shared': 9.2.2
+      '@intlify/vue-devtools': 9.2.2
+    dev: true
+
+  /@intlify/devtools-if/9.2.2:
+    resolution: {integrity: sha512-4ttr/FNO29w+kBbU7HZ/U0Lzuh2cRDhP8UlWOtV9ERcjHzuyXVZmjyleESK6eVP60tGC9QtQW9yZE+JeRhDHkg==}
+    engines: {node: '>= 14'}
+    dependencies:
+      '@intlify/shared': 9.2.2
+    dev: true
+
+  /@intlify/message-compiler/9.2.2:
+    resolution: {integrity: sha512-IUrQW7byAKN2fMBe8z6sK6riG1pue95e5jfokn8hA5Q3Bqy4MBJ5lJAofUsawQJYHeoPJ7svMDyBaVJ4d0GTtA==}
+    engines: {node: '>= 14'}
+    dependencies:
+      '@intlify/shared': 9.2.2
+      source-map: 0.6.1
+    dev: true
+
+  /@intlify/shared/9.2.2:
+    resolution: {integrity: sha512-wRwTpsslgZS5HNyM7uDQYZtxnbI12aGiBZURX3BTR9RFIKKRWpllTsgzHWvj3HKm3Y2Sh5LPC1r0PDCKEhVn9Q==}
+    engines: {node: '>= 14'}
+    dev: true
+
+  /@intlify/vue-devtools/9.2.2:
+    resolution: {integrity: sha512-+dUyqyCHWHb/UcvY1MlIpO87munedm3Gn6E9WWYdWrMuYLcoIoOEVDWSS8xSwtlPU+kA+MEQTP6Q1iI/ocusJg==}
+    engines: {node: '>= 14'}
+    dependencies:
+      '@intlify/core-base': 9.2.2
+      '@intlify/shared': 9.2.2
+    dev: true
+
   /@ioredis/commands/1.2.0:
     resolution: {integrity: sha512-Sx1pU8EM64o2BrqNpEO1CNLtKQwyhuXuqyfH7oGKCk+1a33d2r5saW8zNwm3j6BTExtjrv2BxTgzzkMwts6vGg==}
     dev: true
@@ -7865,6 +7905,18 @@ packages:
       - supports-color
     dev: true
 
+  /vue-i18n/9.2.2:
+    resolution: {integrity: sha512-yswpwtj89rTBhegUAv9Mu37LNznyu3NpyLQmozF3i1hYOhwpG8RjcjIFIIfnu+2MDZJGSZPXaKWvnQA71Yv9TQ==}
+    engines: {node: '>= 14'}
+    peerDependencies:
+      vue: ^3.0.0
+    dependencies:
+      '@intlify/core-base': 9.2.2
+      '@intlify/shared': 9.2.2
+      '@intlify/vue-devtools': 9.2.2
+      '@vue/devtools-api': 6.4.5
+    dev: true
+
   /vue-observe-visibility/2.0.0-alpha.1:
     resolution: {integrity: sha512-flFbp/gs9pZniXR6fans8smv1kDScJ8RS7rEpMjhVabiKeq7Qz3D9+eGsypncjfIyyU84saU88XZ0zjbD6Gq/g==}
     peerDependencies: