diff --git a/apps/x/apps/main/src/ipc.ts b/apps/x/apps/main/src/ipc.ts
index f07a1542..b4728739 100644
--- a/apps/x/apps/main/src/ipc.ts
+++ b/apps/x/apps/main/src/ipc.ts
@@ -679,6 +679,11 @@ export function setupIpcHandlers() {
       const error = await shell.openPath(filePath);
       return { error: error || undefined };
     },
+    'shell:showItemInFolder': async (_event, args) => {
+      const filePath = resolveShellPath(args.path);
+      shell.showItemInFolder(filePath);
+      return { success: true };
+    },
     'shell:readFileBase64': async (_event, args) => {
       const filePath = resolveShellPath(args.path);
       const stat = await fs.stat(filePath);
diff --git a/apps/x/apps/renderer/src/App.tsx b/apps/x/apps/renderer/src/App.tsx
index b3297ccd..7f76e2e9 100644
--- a/apps/x/apps/renderer/src/App.tsx
+++ b/apps/x/apps/renderer/src/App.tsx
@@ -3966,6 +3966,12 @@ function App() {
         document.body.removeChild(textarea)
       })
     },
+    revealInFileManager: (path: string, isDir: boolean) => {
+      const channel = isDir ? 'shell:openPath' : 'shell:showItemInFolder'
+      void window.ipc.invoke(channel, { path }).catch((err) => {
+        console.error('Failed to open in file manager:', err)
+      })
+    },
     onOpenInNewTab: (path: string) => {
       openFileInNewTab(path)
     },
@@ -4769,6 +4775,7 @@ function App() {
                       rename: knowledgeActions.rename,
                       remove: knowledgeActions.remove,
                       copyPath: knowledgeActions.copyPath,
+                      revealInFileManager: knowledgeActions.revealInFileManager,
                     }}
                   />
                 </div>
diff --git a/apps/x/apps/renderer/src/components/bases-view.tsx b/apps/x/apps/renderer/src/components/bases-view.tsx
index a68eb360..b1f5413c 100644
--- a/apps/x/apps/renderer/src/components/bases-view.tsx
+++ b/apps/x/apps/renderer/src/components/bases-view.tsx
@@ -1,6 +1,6 @@
 import * as React from 'react'
 import { useEffect, useState, useMemo, useCallback, useRef } from 'react'
-import { ArrowDown, ArrowUp, ChevronLeft, ChevronRight, X, Check, ListFilter, Filter, Search, Save, Copy, Pencil, Trash2 } from 'lucide-react'
+import { ArrowDown, ArrowUp, ChevronLeft, ChevronRight, X, Check, ListFilter, Filter, Search, Save, Copy, FolderOpen, Pencil, Trash2 } from 'lucide-react'
 import { Badge } from '@/components/ui/badge'
 import { Popover, PopoverTrigger, PopoverContent } from '@/components/ui/popover'
 import { Command, CommandInput, CommandList, CommandItem, CommandEmpty, CommandGroup } from '@/components/ui/command'
@@ -103,9 +103,18 @@ type BasesViewProps = {
     rename: (oldPath: string, newName: string, isDir: boolean) => Promise<void>
     remove: (path: string) => Promise<void>
     copyPath: (path: string) => void
+    revealInFileManager: (path: string, isDir: boolean) => void
   }
 }
 
+function getFileManagerName(): string {
+  if (typeof navigator === 'undefined') return 'File Manager'
+  const platform = navigator.platform.toLowerCase()
+  if (platform.includes('mac')) return 'Finder'
+  if (platform.includes('win')) return 'Explorer'
+  return 'File Manager'
+}
+
 function collectFiles(nodes: TreeNode[]): { path: string; name: string; mtimeMs: number }[] {
   return nodes.flatMap((n) =>
     n.kind === 'file' && n.name.endsWith('.md')
@@ -919,6 +928,10 @@ function NoteRow({
           <Copy className="mr-2 size-4" />
           Copy Path
         </ContextMenuItem>
+        <ContextMenuItem onClick={() => actions?.revealInFileManager(note.path, false)}>
+          <FolderOpen className="mr-2 size-4" />
+          Open in {getFileManagerName()}
+        </ContextMenuItem>
         <ContextMenuSeparator />
         <ContextMenuItem onClick={() => { setNewName(baseName); isSubmittingRef.current = false; setIsRenaming(true) }}>
           <Pencil className="mr-2 size-4" />
diff --git a/apps/x/apps/renderer/src/components/sidebar-content.tsx b/apps/x/apps/renderer/src/components/sidebar-content.tsx
index 4f0947a6..51aa3940 100644
--- a/apps/x/apps/renderer/src/components/sidebar-content.tsx
+++ b/apps/x/apps/renderer/src/components/sidebar-content.tsx
@@ -11,6 +11,7 @@ import {
   ExternalLink,
   FilePlus,
   Folder,
+  FolderOpen,
   FolderPlus,
   Globe,
   AlertTriangle,
@@ -119,9 +120,18 @@ type KnowledgeActions = {
   rename: (path: string, newName: string, isDir: boolean) => Promise<void>
   remove: (path: string) => Promise<void>
   copyPath: (path: string) => void
+  revealInFileManager: (path: string, isDir: boolean) => void
   onOpenInNewTab?: (path: string) => void
 }
 
+function getFileManagerName(): string {
+  if (typeof navigator === 'undefined') return 'File Manager'
+  const platform = navigator.platform.toLowerCase()
+  if (platform.includes('mac')) return 'Finder'
+  if (platform.includes('win')) return 'Explorer'
+  return 'File Manager'
+}
+
 type RunListItem = {
   id: string
   title?: string
@@ -1177,11 +1187,13 @@ function KnowledgeSection({
     },
   }), [actions, deriveParent])
 
+  const fileManagerName = getFileManagerName()
   const quickActions = [
     { icon: FilePlus, label: "New Note", action: () => wrappedActions.createNote() },
     { icon: FolderPlus, label: "New Folder", action: () => void wrappedActions.createFolder() },
     { icon: Network, label: "Graph View", action: () => actions.openGraph() },
     { icon: Table2, label: "Bases", action: () => actions.openBases() },
+    { icon: FolderOpen, label: `Open in ${fileManagerName}`, action: () => actions.revealInFileManager('knowledge', true) },
   ]
 
   return (
@@ -1389,6 +1401,10 @@ function Tree({
         <Copy className="mr-2 size-4" />
         Copy Path
       </ContextMenuItem>
+      <ContextMenuItem onClick={() => actions.revealInFileManager(item.path, isDir)}>
+        <FolderOpen className="mr-2 size-4" />
+        Open in {getFileManagerName()}
+      </ContextMenuItem>
       <ContextMenuSeparator />
       <ContextMenuItem onClick={() => { setNewName(baseName); isSubmittingRef.current = false; setIsRenaming(true) }}>
         <Pencil className="mr-2 size-4" />
diff --git a/apps/x/packages/shared/src/ipc.ts b/apps/x/packages/shared/src/ipc.ts
index 2def4998..9ac31ce6 100644
--- a/apps/x/packages/shared/src/ipc.ts
+++ b/apps/x/packages/shared/src/ipc.ts
@@ -489,6 +489,10 @@ const ipcSchemas = {
     req: z.object({ path: z.string() }),
     res: z.object({ error: z.string().optional() }),
   },
+  'shell:showItemInFolder': {
+    req: z.object({ path: z.string() }),
+    res: z.object({ success: z.literal(true) }),
+  },
   'shell:readFileBase64': {
     req: z.object({ path: z.string() }),
     res: z.object({ data: z.string(), mimeType: z.string(), size: z.number() }),