diff --git a/memento-note/components/mobile-action-sheet.tsx b/memento-note/components/mobile-action-sheet.tsx
index 2b11068..63ee0df 100644
--- a/memento-note/components/mobile-action-sheet.tsx
+++ b/memento-note/components/mobile-action-sheet.tsx
@@ -101,84 +101,84 @@ export function MobileActionSheet({
         <div className="mobile-action-sheet-body">
           {/* Section 1 : Actions de bloc */}
           <div className="mobile-action-sheet-section">
-            <h4 className="section-title">Actions sur le bloc</h4>
+            <h4 className="section-title">{t('mobile.blockActions') || 'Actions sur le bloc'}</h4>
             <div className="grid grid-cols-3 gap-2">
               <button type="button" className="action-tile-btn" onClick={handleSelectAllBlock}>
                 <FileText size={20} className="text-blue-500" />
-                <span>Sélectionner tout</span>
+                <span>{t('mobile.selectAll') || 'Sélectionner tout'}</span>
               </button>
               <button type="button" className="action-tile-btn" onClick={handleDuplicateBlock}>
                 <Copy size={20} className="text-emerald-500" />
-                <span>Dupliquer</span>
+                <span>{t('mobile.duplicate') || 'Dupliquer'}</span>
               </button>
               <button type="button" className="action-tile-btn text-rose-500" onClick={handleDeleteBlock}>
                 <Trash2 size={20} className="text-rose-500" />
-                <span>Supprimer</span>
+                <span>{t('mobile.delete') || 'Supprimer'}</span>
               </button>
             </div>
           </div>
 
           {/* Section 2 : IA Note */}
           <div className="mobile-action-sheet-section">
-            <h4 className="section-title">IA Note</h4>
+            <h4 className="section-title">{t('mobile.aiNote') || 'IA Note'}</h4>
             <div className="grid grid-cols-4 gap-2">
               <button type="button" className="action-tile-btn" onClick={() => handleAiAction('improve')}>
                 <Wand2 size={18} className="text-purple-500 animate-pulse" />
-                <span className="text-[10px]">Améliorer</span>
+                <span className="text-[10px]">{t('richTextEditor.slashImprove') || 'Améliorer'}</span>
               </button>
               <button type="button" className="action-tile-btn" onClick={() => handleAiAction('clarify')}>
                 <Lightbulb size={18} className="text-amber-500" />
-                <span className="text-[10px]">Clarifier</span>
+                <span className="text-[10px]">{t('richTextEditor.slashClarify') || 'Clarifier'}</span>
               </button>
               <button type="button" className="action-tile-btn" onClick={() => handleAiAction('shorten')}>
                 <Scissors size={18} className="text-indigo-500" />
-                <span className="text-[10px]">Raccourcir</span>
+                <span className="text-[10px]">{t('richTextEditor.slashShorten') || 'Raccourcir'}</span>
               </button>
               <button type="button" className="action-tile-btn" onClick={() => handleAiAction('expand')}>
                 <Expand size={18} className="text-teal-500" />
-                <span className="text-[10px]">Développer</span>
+                <span className="text-[10px]">{t('richTextEditor.slashExpand') || 'Développer'}</span>
               </button>
             </div>
           </div>
 
           {/* Section 3 : Format de bloc */}
           <div className="mobile-action-sheet-section">
-            <h4 className="section-title">Convertir le format</h4>
+            <h4 className="section-title">{t('mobile.convertFormat') || 'Convertir le format'}</h4>
             <div className="flex gap-2 overflow-x-auto pb-2 scrollbar-none">
               <button
                 type="button"
                 className="format-pill-btn"
                 onClick={() => { editor.chain().focus().setParagraph().run(); onClose() }}
               >
-                Paragraphe
+                {t('mobile.paragraph') || 'Paragraphe'}
               </button>
               <button
                 type="button"
                 className="format-pill-btn"
                 onClick={() => { editor.chain().focus().toggleHeading({ level: 1 }).run(); onClose() }}
               >
-                <Heading1 size={14} className="inline mr-1" /> Titre 1
+                <Heading1 size={14} className="inline mr-1" /> {t('notes.heading1') || 'Titre 1'}
               </button>
               <button
                 type="button"
                 className="format-pill-btn"
                 onClick={() => { editor.chain().focus().toggleHeading({ level: 2 }).run(); onClose() }}
               >
-                <Heading2 size={14} className="inline mr-1" /> Titre 2
+                <Heading2 size={14} className="inline mr-1" /> {t('notes.heading2') || 'Titre 2'}
               </button>
               <button
                 type="button"
                 className="format-pill-btn"
                 onClick={() => { editor.chain().focus().toggleHeading({ level: 3 }).run(); onClose() }}
               >
-                <Heading3 size={14} className="inline mr-1" /> Titre 3
+                <Heading3 size={14} className="inline mr-1" /> {t('notes.heading3') || 'Titre 3'}
               </button>
               <button
                 type="button"
                 className="format-pill-btn"
                 onClick={() => { editor.chain().focus().toggleBlockquote().run(); onClose() }}
               >
-                <Quote size={14} className="inline mr-1" /> Citation
+                <Quote size={14} className="inline mr-1" /> {t('mobile.quote') || 'Citation'}
               </button>
             </div>
           </div>
diff --git a/memento-note/components/note-editor/note-content-area.tsx b/memento-note/components/note-editor/note-content-area.tsx
index 9b9da29..a867847 100644
--- a/memento-note/components/note-editor/note-content-area.tsx
+++ b/memento-note/components/note-editor/note-content-area.tsx
@@ -40,7 +40,7 @@ export function NoteContentArea() {
         <MarkdownContent content={state.content} />
         {!readOnly && (
           <p className="text-[11px] text-foreground/30 mt-8 select-none not-prose italic">
-            Cliquez pour éditer
+            {t('editor.clickToEdit') || 'Cliquez pour éditer'}
           </p>
         )}
       </div>
diff --git a/memento-note/components/wikilinks-backlinks-panel.tsx b/memento-note/components/wikilinks-backlinks-panel.tsx
index 8805ecb..1a1c7df 100644
--- a/memento-note/components/wikilinks-backlinks-panel.tsx
+++ b/memento-note/components/wikilinks-backlinks-panel.tsx
@@ -5,6 +5,7 @@ import { Link2, ChevronRight, Loader2 } from 'lucide-react'
 import { cn } from '@/lib/utils'
 import { motion, AnimatePresence } from 'motion/react'
 import { useRouter } from 'next/navigation'
+import { useLanguage } from '@/lib/i18n'
 
 interface BacklinkNote {
   id: string
@@ -26,6 +27,7 @@ interface WikilinksBacklinksPanelProps {
 }
 
 export function WikilinksBacklinksPanel({ noteId, className }: WikilinksBacklinksPanelProps) {
+  const { t } = useLanguage()
   const [backlinks, setBacklinks] = useState<Backlink[]>([])
   const [loading, setLoading] = useState(true)
   const [open, setOpen] = useState(true)
@@ -54,7 +56,7 @@ export function WikilinksBacklinksPanel({ noteId, className }: WikilinksBacklink
       >
         <Link2 size={14} className="text-concrete shrink-0" />
         <span className="text-[10px] uppercase tracking-[0.25em] font-bold text-concrete group-hover:text-ink transition-colors">
-          Liens entrants
+          {t('editor.backlinks') || 'Liens entrants'}
         </span>
         <span className="text-[9px] bg-brand-accent/10 text-brand-accent px-1.5 py-0.5 rounded-full font-bold">
           {backlinks.length}
@@ -78,7 +80,7 @@ export function WikilinksBacklinksPanel({ noteId, className }: WikilinksBacklink
             {loading && (
               <div className="flex items-center gap-2 py-2">
                 <Loader2 size={12} className="animate-spin text-concrete" />
-                <span className="text-[10px] text-concrete">Chargement…</span>
+                <span className="text-[10px] text-concrete">{t('common.loading') || 'Chargement…'}</span>
               </div>
             )}
             {backlinks.map(bl => (
@@ -92,7 +94,7 @@ export function WikilinksBacklinksPanel({ noteId, className }: WikilinksBacklink
                   <Link2 size={10} className="text-brand-accent/60 mt-0.5 shrink-0" />
                   <div className="min-w-0 flex-1">
                     <p className="text-[11px] font-semibold text-ink truncate group-hover/bl:text-brand-accent transition-colors">
-                      {bl.sourceNote.title || '(Sans titre)'}
+                      {bl.sourceNote.title || (t('notes.untitled') || '(Sans titre)')}
                     </p>
                     {bl.contextSnippet && (
                       <p className="text-[9px] text-concrete/70 mt-0.5 line-clamp-2 leading-relaxed">
diff --git a/memento-note/lib/editor/undo-redo-feedback-extension.ts b/memento-note/lib/editor/undo-redo-feedback-extension.ts
index 3536c4a..67114df 100644
--- a/memento-note/lib/editor/undo-redo-feedback-extension.ts
+++ b/memento-note/lib/editor/undo-redo-feedback-extension.ts
@@ -8,16 +8,26 @@ import { toast } from 'sonner'
 export const UndoRedoFeedbackExtension = Extension.create({
   name: 'undoRedoFeedback',
 
+  addOptions() {
+    return {
+      undoText: 'Action annulée',
+      undoHint: 'Faites {key}+Maj+Z pour rétablir.',
+      redoText: 'Action rétablie',
+      redoHint: 'Faites {key}+Z pour annuler.',
+    }
+  },
+
   addKeyboardShortcuts() {
     const isMac = typeof window !== 'undefined' && /Mac|iPod|iPhone|iPad/.test(navigator.userAgent)
     const modKey = isMac ? '⌘' : 'Ctrl'
+    const o = this.options
 
     return {
       'Mod-z': () => {
         const success = this.editor.commands.undo()
         if (success) {
-          toast.info('Action annulée', {
-            description: `Faites ${modKey}+Maj+Z pour rétablir.`,
+          toast.info(o.undoText, {
+            description: o.undoHint.replace('{key}', modKey),
             duration: 2000,
           })
         }
@@ -26,8 +36,8 @@ export const UndoRedoFeedbackExtension = Extension.create({
       'Mod-y': () => {
         const success = this.editor.commands.redo()
         if (success) {
-          toast.info('Action rétablie', {
-            description: `Faites ${modKey}+Z pour annuler.`,
+          toast.info(o.redoText, {
+            description: o.redoHint.replace('{key}', modKey),
             duration: 2000,
           })
         }
@@ -36,8 +46,8 @@ export const UndoRedoFeedbackExtension = Extension.create({
       'Mod-Shift-z': () => {
         const success = this.editor.commands.redo()
         if (success) {
-          toast.info('Action rétablie', {
-            description: `Faites ${modKey}+Z pour annuler.`,
+          toast.info(o.redoText, {
+            description: o.redoHint.replace('{key}', modKey),
             duration: 2000,
           })
         }
diff --git a/memento-note/locales/en.json b/memento-note/locales/en.json
index 937ee20..2fd68c1 100644
--- a/memento-note/locales/en.json
+++ b/memento-note/locales/en.json
@@ -2617,6 +2617,16 @@
     "slashLivingBlock": "Living Block",
     "slashLivingBlockDesc": "Insert from another note",
     "frequentCommands": "★ Frequent",
+    "mobileBlockActions": "Block Actions",
+    "mobileSelectAll": "Select All",
+    "mobileDuplicate": "Duplicate",
+    "mobileDelete": "Delete",
+    "mobileAiNote": "AI Note",
+    "mobileConvertFormat": "Convert Format",
+    "mobileParagraph": "Paragraph",
+    "mobileQuote": "Quote",
+    "editorBacklinks": "Incoming Links",
+    "editorClickToEdit": "Click to edit",
     "exercisesLoading": "Generating exercises...",
     "exercisesGenerated": "exercises created!",
     "aiGenerateExercises": "Generate exercises",
diff --git a/memento-note/locales/fr.json b/memento-note/locales/fr.json
index 52d987b..2c54cda 100644
--- a/memento-note/locales/fr.json
+++ b/memento-note/locales/fr.json
@@ -2621,6 +2621,16 @@
     "slashLivingBlock": "Bloc vivant",
     "slashLivingBlockDesc": "Insérer depuis une autre note",
     "frequentCommands": "★ Fréquents",
+    "mobileBlockActions": "Actions sur le bloc",
+    "mobileSelectAll": "Sélectionner tout",
+    "mobileDuplicate": "Dupliquer",
+    "mobileDelete": "Supprimer",
+    "mobileAiNote": "IA Note",
+    "mobileConvertFormat": "Convertir le format",
+    "mobileParagraph": "Paragraphe",
+    "mobileQuote": "Citation",
+    "editorBacklinks": "Liens entrants",
+    "editorClickToEdit": "Cliquez pour éditer",
     "exercisesLoading": "Génération des exercices...",
     "exercisesGenerated": "exercices créés !",
     "aiGenerateExercises": "Générer des exercices",