diff --git a/packages/web/src/components/file-manager/index.vue b/packages/web/src/components/file-manager/index.vue
index 20c38daf..bdfa127b 100644
--- a/packages/web/src/components/file-manager/index.vue
+++ b/packages/web/src/components/file-manager/index.vue
@@ -28,21 +28,25 @@ import { pathSegments, joinPath } from './utils'
 import FileList from './file-list.vue'
 import FileViewer from './file-viewer.vue'
 
-const props = defineProps<{
+const props = withDefaults(defineProps<{
   botId: string
-}>()
+  syncUrl?: boolean
+}>(), {
+  syncUrl: true,
+})
 
 const { t } = useI18n()
 
 const route = useRoute()
 const router = useRouter()
 
-const currentPath = useSyncedQueryParam('path', '/data')
+const currentPath = props.syncUrl ? useSyncedQueryParam('path', '/data') : ref('/data')
 const entries = ref<HandlersFsFileInfo[]>([])
 const listLoading = ref(false)
 const openFile = ref<HandlersFsFileInfo | null>(null)
 
 function syncFileToUrl(filePath: string | null) {
+  if (!props.syncUrl) return
   const current = route.query.file as string | undefined
   const next = filePath || undefined
   if (current !== next) {
@@ -51,6 +55,7 @@ function syncFileToUrl(filePath: string | null) {
 }
 
 function restoreFileFromUrl() {
+  if (!props.syncUrl) return
   const filePath = route.query.file as string | undefined
   if (filePath && !openFile.value) {
     const name = filePath.split('/').pop() ?? ''
diff --git a/packages/web/src/components/monaco-editor/index.vue b/packages/web/src/components/monaco-editor/index.vue
index 61bc8a75..4b72a1a4 100644
--- a/packages/web/src/components/monaco-editor/index.vue
+++ b/packages/web/src/components/monaco-editor/index.vue
@@ -39,7 +39,7 @@ function resolveLanguage(): string {
 }
 
 function resolveTheme(): string {
-  return settings.theme === 'dark' ? 'vs-dark' : 'vs'
+  return settings.theme === 'dark' ? 'vitesse-dark' : 'vitesse-light'
 }
 
 onMounted(() => {
diff --git a/packages/web/src/i18n/locales/en.json b/packages/web/src/i18n/locales/en.json
index 742b28f8..0ea52568 100644
--- a/packages/web/src/i18n/locales/en.json
+++ b/packages/web/src/i18n/locales/en.json
@@ -135,7 +135,8 @@
     "toolRunning": "Running",
     "toolInput": "Input",
     "toolResult": "Result",
-    "unknownUser": "{platform} User"
+    "unknownUser": "{platform} User",
+    "files": "Files"
   },
   "models": {
     "title": "Models",
diff --git a/packages/web/src/i18n/locales/zh.json b/packages/web/src/i18n/locales/zh.json
index a77a3c0c..9ff122e3 100644
--- a/packages/web/src/i18n/locales/zh.json
+++ b/packages/web/src/i18n/locales/zh.json
@@ -131,7 +131,8 @@
     "toolRunning": "运行中",
     "toolInput": "输入",
     "toolResult": "结果",
-    "unknownUser": "{platform}用户"
+    "unknownUser": "{platform}用户",
+    "files": "文件管理"
   },
   "models": {
     "title": "模型",
diff --git a/packages/web/src/main.ts b/packages/web/src/main.ts
index a54efafd..834ed00e 100644
--- a/packages/web/src/main.ts
+++ b/packages/web/src/main.ts
@@ -54,6 +54,7 @@ import {
   faVideo,
   faEnvelope,
   faChartLine,
+  faFolderOpen,
 } from '@fortawesome/free-solid-svg-icons'
 import {
   faRectangleList,
@@ -110,6 +111,7 @@ library.add(
   faMicrosoft,
   faEnvelope,
   faChartLine,
+  faFolderOpen,
   faYandex,
   ...customSearchIcons,
 )
diff --git a/packages/web/src/pages/chat/components/chat-area.vue b/packages/web/src/pages/chat/components/chat-area.vue
index 1071b218..4a1d84f6 100644
--- a/packages/web/src/pages/chat/components/chat-area.vue
+++ b/packages/web/src/pages/chat/components/chat-area.vue
@@ -153,28 +153,64 @@
                     class="size-3.5 animate-spin"
                   />
                 </Button>
+                <Button
+                  type="button"
+                  size="sm"
+                  variant="ghost"
+                  :disabled="!currentBotId"
+                  :aria-label="$t('chat.files')"
+                  @click="fileManagerOpen = true"
+                >
+                  <FontAwesomeIcon
+                    :icon="['fas', 'folder-open']"
+                    class="size-3.5"
+                  />
+                </Button>
               </InputGroupAddon>
             </InputGroup>
           </section>
         </div>
       </div>
     </template>
+
+    <!-- File manager sheet -->
+    <Sheet v-model:open="fileManagerOpen">
+      <SheetContent
+        side="right"
+        class="sm:max-w-2xl w-full p-0 flex flex-col"
+      >
+        <SheetHeader class="px-4 pt-4 pb-0">
+          <SheetTitle>{{ $t('chat.files') }}</SheetTitle>
+          <SheetDescription class="sr-only">
+            {{ $t('chat.files') }}
+          </SheetDescription>
+        </SheetHeader>
+        <FileManager
+          v-if="currentBotId"
+          :bot-id="currentBotId"
+          :sync-url="false"
+          class="flex-1 min-h-0"
+        />
+      </SheetContent>
+    </Sheet>
   </div>
 </template>
 
 <script setup lang="ts">
 import { ref, computed, watch, nextTick, onMounted } from 'vue'
-import { Textarea, Button, Avatar, AvatarImage, AvatarFallback, Badge, InputGroup, InputGroupAddon, InputGroupButton, InputGroupText, InputGroupTextarea } from '@memoh/ui'
+import { Textarea, Button, Avatar, AvatarImage, AvatarFallback, Badge, InputGroup, InputGroupAddon, InputGroupButton, InputGroupText, InputGroupTextarea, Sheet, SheetContent, SheetHeader, SheetTitle, SheetDescription } from '@memoh/ui'
 import { useChatStore } from '@/store/chat-list'
 import { storeToRefs } from 'pinia'
 import MessageItem from './message-item.vue'
 import MediaGalleryLightbox from './media-gallery-lightbox.vue'
+import FileManager from '@/components/file-manager/index.vue'
 import { useMediaGallery } from '../composables/useMediaGallery'
 import type { ChatAttachment } from '@/composables/api/useChat'
 
 const chatStore = useChatStore()
 const fileInput = ref<HTMLInputElement | null>(null)
 const pendingFiles = ref<File[]>([])
+const fileManagerOpen = ref(false)
 const {
   messages,
   streaming,