diff --git a/memento-note/components/rich-text-editor.tsx b/memento-note/components/rich-text-editor.tsx
index 78167bb..e66fa8b 100644
--- a/memento-note/components/rich-text-editor.tsx
+++ b/memento-note/components/rich-text-editor.tsx
@@ -33,6 +33,7 @@ import { FindReplaceBar, FindReplaceExtension } from './editor-find-replace-bar'
 import { LinkPreviewExtension, insertLinkPreview, isUrl } from './tiptap-link-preview-extension'
 import { MathEquationExtension, InlineMathExtension, insertMathEquation } from './tiptap-math-extension'
 import { ColumnsExtension, ColumnNode, insertColumnsBlock } from './tiptap-columns-extension'
+import { SubPageExtension, insertSubPageBlock } from './tiptap-subpage-extension'
 import { RtlPreserveExtension } from './tiptap-rtl-preserve-extension'
 import { ClipArticleExtension } from './tiptap-clip-article-extension'
 import { BlockPicker, type BlockSuggestion } from './block-picker'
@@ -69,7 +70,7 @@ import {
   FileText, Pilcrow, MessageSquare, AlignLeft, AlignCenter, AlignRight,
   Superscript as SuperscriptIcon, Subscript as SubscriptIcon, Expand, Plus,
   SpellCheck, Languages, BookOpen, Presentation, BarChart3, Database,
-  ChevronsRightLeft, MessageSquareWarning, ListTree, FunctionSquare, Columns3, Loader2
+  ChevronsRightLeft, MessageSquareWarning, ListTree, FunctionSquare, Columns3, Loader2, FileOutput
 } from 'lucide-react'
 import { cn } from '@/lib/utils'
 import { toast } from 'sonner'
@@ -241,6 +242,10 @@ const slashCommands: SlashItem[] = [
   {
     title: 'Écrire avec l\'IA', description: 'Générer du contenu au curseur', icon: Sparkles, category: 'IA Note', isAi: true, aiOption: 'write', command: () => { }
   },
+  {
+    title: 'Sub-page', description: 'Create a linked sub-page', icon: FileOutput, category: 'Basic blocks', shortcut: '/page',
+    command: () => { }
+  },
 ]
 
 async function aiReformulate(text: string, option: string, t: any, language?: string): Promise<string> {
@@ -492,6 +497,7 @@ export const RichTextEditor = forwardRef<RichTextEditorHandle, RichTextEditorPro
         InlineMathExtension,
         ColumnsExtension,
         ColumnNode,
+        SubPageExtension,
         ClipArticleExtension,
         RtlPreserveExtension,
         Placeholder.configure({
@@ -1725,6 +1731,7 @@ function SlashCommandMenu({ editor, onInsertImage, onSuggestCharts }: { editor:
     { ...slashCommands[35], title: t('richTextEditor.slashMath'), description: t('richTextEditor.slashMathDesc'), categoryId: 'text', slashKeywords: ['math', 'maths', 'equation', 'équation', 'formula', 'formule', 'latex', 'katex'] },
     { ...slashCommands[36], title: t('richTextEditor.slashColumns'), description: t('richTextEditor.slashColumnsDesc'), categoryId: 'text', slashKeywords: ['columns', 'colonnes', 'cols', 'layout', 'mise', 'page', 'cote', 'côte'] },
     { ...slashCommands[37], title: t('richTextEditor.slashAiWriter') || 'Écrire avec l\'IA', description: t('richTextEditor.slashAiWriterDesc') || 'Générer du contenu au curseur', categoryId: 'ai', slashKeywords: ['ecrire', 'écrire', 'write', 'ia', 'ai', 'generer', 'générer', 'rediger', 'rédiger'] },
+    { ...slashCommands[38], title: t('richTextEditor.slashSubPage') || 'Sous-page', description: t('richTextEditor.slashSubPageDesc') || 'Créer une note liée', categoryId: 'text', slashKeywords: ['sub', 'subpage', 'sous-page', 'souspage', 'page', 'lien', 'nested', 'imbriquée'] },
     {
       title: t('richTextEditor.slashNoteLink'),
       description: t('richTextEditor.slashNoteLinkDesc'),
@@ -1836,6 +1843,11 @@ function SlashCommandMenu({ editor, onInsertImage, onSuggestCharts }: { editor:
       if (!insertStructuredViewBlockAtSelection(editor, currentNotebookId)) {
         toast.error(t('structuredViewBlock.loadError') || 'Impossible de charger les données structurées.')
       }
+    } else if (item.title === 'Sub-page') {
+      deleteSlashText(); closeMenu()
+      toast.loading('Création de la sous-page...', { id: 'subpage' })
+      await insertSubPageBlock(editor)
+      toast.success('Sous-page créée !', { id: 'subpage' })
     } else {
       deleteSlashText(); item.command(editor); closeMenu()
     }
diff --git a/memento-note/components/tiptap-subpage-extension.tsx b/memento-note/components/tiptap-subpage-extension.tsx
new file mode 100644
index 0000000..6769078
--- /dev/null
+++ b/memento-note/components/tiptap-subpage-extension.tsx
@@ -0,0 +1,122 @@
+'use client'
+
+import { Node, mergeAttributes } from '@tiptap/core'
+import { ReactNodeViewRenderer, NodeViewWrapper } from '@tiptap/react'
+import { FileText, Trash2, ChevronRight } from 'lucide-react'
+import { useLanguage } from '@/lib/i18n'
+import { useRouter } from 'next/navigation'
+
+const SubPageView = ({ node, deleteNode, selected }: any) => {
+  const { t } = useLanguage()
+  const router = useRouter()
+  const noteId = node.attrs.noteId as string
+  const title = (node.attrs.title as string) || t('notes.untitled') || 'Sans titre'
+
+  const open = () => {
+    if (noteId) router.push(`/home?openNote=${noteId}`)
+  }
+
+  return (
+    <NodeViewWrapper className="sub-page-block my-2" dir="auto" data-selected={selected}>
+      <div className="group/sub flex items-center gap-2 rounded-xl border border-border bg-card hover:border-brand-accent/40 hover:shadow-sm transition-all p-3 cursor-pointer" onClick={open}>
+        <div className="w-8 h-8 rounded-lg bg-brand-accent/10 flex items-center justify-center flex-shrink-0">
+          <FileText className="h-4 w-4 text-brand-accent" />
+        </div>
+        <div className="flex-1 min-w-0">
+          <div className="text-sm font-medium truncate">{title}</div>
+          <div className="text-[10px] text-muted-foreground">Sous-page</div>
+        </div>
+        <ChevronRight className="h-4 w-4 text-muted-foreground flex-shrink-0 group-hover/sub:text-brand-accent transition-colors" />
+        <button
+          onClick={(e) => { e.stopPropagation(); deleteNode() }}
+          contentEditable={false}
+          className="p-1 rounded hover:bg-destructive/10 text-muted-foreground hover:text-destructive opacity-0 group-hover/sub:opacity-100 transition-opacity flex-shrink-0"
+          title="Supprimer"
+        >
+          <Trash2 className="h-3.5 w-3.5" />
+        </button>
+      </div>
+    </NodeViewWrapper>
+  )
+}
+
+export const SubPageExtension = Node.create({
+  name: 'subPageBlock',
+  group: 'block',
+  atom: true,
+  defining: true,
+
+  addAttributes() {
+    return {
+      noteId: {
+        default: '',
+        parseHTML: (el) => el.getAttribute('data-note-id') || '',
+        renderHTML: (attrs) => ({ 'data-note-id': attrs.noteId }),
+      },
+      title: {
+        default: '',
+        parseHTML: (el) => el.getAttribute('data-title') || '',
+        renderHTML: (attrs) => ({ 'data-title': attrs.title }),
+      },
+    }
+  },
+
+  parseHTML() {
+    return [{ tag: 'div[data-type="sub-page-block"]' }]
+  },
+
+  renderHTML({ node, HTMLAttributes }) {
+    return [
+      'div',
+      mergeAttributes(HTMLAttributes, {
+        'data-type': 'sub-page-block',
+        'data-note-id': node.attrs.noteId,
+        'data-title': node.attrs.title,
+        class: 'sub-page-block',
+      }),
+    ]
+  },
+
+  addNodeView() {
+    return ReactNodeViewRenderer(SubPageView)
+  },
+
+  addKeyboardShortcuts() {
+    return {
+      'Mod-Shift-P': () => this.editor.commands.insertContent({
+        type: this.name,
+        attrs: { noteId: '', title: '' },
+      }),
+    }
+  },
+})
+
+export async function insertSubPageBlock(editor: any): Promise<void> {
+  const notebookId = (editor.storage as any).structuredViewBlock?.notebookId as string | null
+
+  try {
+    const res = await fetch('/api/notes', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        title: 'Sans titre',
+        content: '<p></p>',
+        notebookId: notebookId || undefined,
+      }),
+    })
+    const data = await res.json()
+
+    if (!res.ok || !data.data) return
+
+    const note = data.data
+    editor.chain().focus().insertContent({
+      type: 'subPageBlock',
+      attrs: {
+        noteId: note.id,
+        title: note.title || 'Sans titre',
+      },
+    }).run()
+  } catch (e) {
+    console.error('[SubPage] Failed to create note:', e)
+  }
+}
diff --git a/memento-note/locales/en.json b/memento-note/locales/en.json
index 207eecf..07002c5 100644
--- a/memento-note/locales/en.json
+++ b/memento-note/locales/en.json
@@ -2563,6 +2563,8 @@
     "slashAiWriter": "Write with AI",
     "slashAiWriterDesc": "Generate content at cursor",
     "aiWriterPlaceholder": "Describe what you want to write...",
+    "slashSubPage": "Sub-page",
+    "slashSubPageDesc": "Create a linked note inside this note",
     "exercisesLoading": "Generating exercises...",
     "exercisesGenerated": "exercises created!",
     "aiGenerateExercises": "Generate exercises",
diff --git a/memento-note/locales/fr.json b/memento-note/locales/fr.json
index 007fb87..c5daf78 100644
--- a/memento-note/locales/fr.json
+++ b/memento-note/locales/fr.json
@@ -2567,6 +2567,8 @@
     "slashAiWriter": "Écrire avec l'IA",
     "slashAiWriterDesc": "Générer du contenu au curseur",
     "aiWriterPlaceholder": "Décris ce que tu veux écrire...",
+    "slashSubPage": "Sous-page",
+    "slashSubPageDesc": "Créer une note liée dans cette note",
     "exercisesLoading": "Génération des exercices...",
     "exercisesGenerated": "exercices créés !",
     "aiGenerateExercises": "Générer des exercices",