diff --git a/frontend/src/pages/ShoppingPage.tsx b/frontend/src/pages/ShoppingPage.tsx
index a4071e3..cbd2542 100644
--- a/frontend/src/pages/ShoppingPage.tsx
+++ b/frontend/src/pages/ShoppingPage.tsx
@@ -4,7 +4,7 @@ import type { ShoppingListDetail, ShoppingList, Store, Product } from '../api/sh
 import {
   fetchLists, createList, fetchListDetail, deleteList,
   addItem, updateItem, deleteItem, finishShopping, fetchStores, generateMagicList,
-  searchProducts,
+  searchProducts, createProduct,
 } from '../api/shopping'
 import Modal from '../components/Modal'
 import ItemRow from '../components/shopping/ItemRow'
@@ -44,6 +44,7 @@ export default function ShoppingPage() {
   const [selectedProduct, setSelectedProduct] = useState<Product | null>(null)
   const [newItemQty, setNewItemQty] = useState('')
   const [newItemUnit, setNewItemUnit] = useState('')
+  const [addToCatalogue, setAddToCatalogue] = useState(true)
 
   useWakeLock(currentList !== null)
 
@@ -109,6 +110,7 @@ export default function ShoppingPage() {
     setSelectedProduct(null)
     setNewItemQty('')
     setNewItemUnit('')
+    setAddToCatalogue(true)
     setShowAddItemModal(false)
   }
 
@@ -120,13 +122,25 @@ export default function ShoppingPage() {
 
   async function handleAddItem() {
     if (!currentList) return
-    const hasProduct = selectedProduct !== null
-    const customName = hasProduct ? undefined : itemSearch.trim()
-    if (!hasProduct && !customName) return
+    const customName = itemSearch.trim()
+    if (!selectedProduct && !customName) return
     try {
+      let productId = selectedProduct?.id
+
+      // Article libre + case "Ajouter au catalogue" cochée → créer le produit d'abord
+      if (!selectedProduct && customName && addToCatalogue) {
+        const newProduct = await createProduct({
+          name: customName,
+          default_unit: newItemUnit || undefined,
+        })
+        productId = newProduct.id
+        // Met à jour la liste locale des produits pour les prochains ajouts
+        setProducts(prev => [...prev, newProduct].sort((a, b) => a.name.localeCompare(b.name, 'fr')))
+      }
+
       await addItem(currentList.id, {
-        product_id: selectedProduct?.id,
-        custom_name: customName,
+        product_id: productId,
+        custom_name: !productId ? customName : undefined,
         quantity: newItemQty || undefined,
         unit: newItemUnit || undefined,
       })
@@ -425,7 +439,7 @@ export default function ShoppingPage() {
                 color: 'var(--ink-4)', fontFamily: 'var(--font-ui)', fontSize: 13,
                 textAlign: 'center', padding: '12px 16px', margin: 0, ...noSelect,
               }}>
-                {itemSearch.trim() ? `"${itemSearch}" — sera ajouté comme article libre` : 'Catalogue vide'}
+                {itemSearch.trim() ? `"${itemSearch}" — article libre` : 'Catalogue vide'}
               </p>
             )}
             {filteredProducts.map((p, idx) => {
@@ -460,6 +474,21 @@ export default function ShoppingPage() {
             })}
           </div>
 
+          {/* Case "Ajouter au catalogue" — uniquement si article libre sans correspondance */}
+          {!selectedProduct && itemSearch.trim() && filteredProducts.length === 0 && (
+            <label style={{ display: 'flex', alignItems: 'center', gap: 10, cursor: 'pointer', userSelect: 'none', padding: '6px 2px' }}>
+              <input
+                type="checkbox"
+                checked={addToCatalogue}
+                onChange={e => setAddToCatalogue(e.target.checked)}
+                style={{ width: 18, height: 18, accentColor: 'var(--ok)', cursor: 'pointer', flexShrink: 0 }}
+              />
+              <span style={{ fontFamily: 'var(--font-ui)', fontSize: 13, color: 'var(--ink-2)' }}>
+                Ajouter <strong style={{ color: 'var(--ink-1)' }}>{itemSearch.trim()}</strong> au catalogue
+              </span>
+            </label>
+          )}
+
           {/* Quantité + Unité */}
           <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 8 }}>
             <input