diff --git a/app/categories/page.tsx b/app/categories/page.tsx
index ad6ee9c..b492b37 100644
--- a/app/categories/page.tsx
+++ b/app/categories/page.tsx
@@ -11,7 +11,7 @@ import { Dialog, DialogContent, DialogHeader, DialogTitle } from "@/components/u
 import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "@/components/ui/dropdown-menu"
 import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@/components/ui/collapsible"
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
-import { Plus, MoreVertical, Pencil, Trash2, RefreshCw, X, ChevronDown, ChevronRight } from "lucide-react"
+import { Plus, MoreVertical, Pencil, Trash2, RefreshCw, X, ChevronDown, ChevronRight, ChevronsUpDown, Search } from "lucide-react"
 import { CategoryIcon } from "@/components/ui/category-icon"
 import { autoCategorize, addCategory, updateCategory, deleteCategory } from "@/lib/store-db"
 import type { Category } from "@/lib/types"
@@ -35,6 +35,7 @@ export default function CategoriesPage() {
     parentId: null as string | null,
   })
   const [newKeyword, setNewKeyword] = useState("")
+  const [searchQuery, setSearchQuery] = useState("")
 
   // Organiser les catégories par parent
   const { parentCategories, childrenByParent, orphanCategories } = useMemo(() => {
@@ -111,6 +112,16 @@ export default function CategoriesPage() {
     setExpandedParents(newExpanded)
   }
 
+  const expandAll = () => {
+    setExpandedParents(new Set(parentCategories.map((p) => p.id)))
+  }
+
+  const collapseAll = () => {
+    setExpandedParents(new Set())
+  }
+
+  const allExpanded = parentCategories.length > 0 && expandedParents.size === parentCategories.length
+
   const handleNewCategory = (parentId: string | null = null) => {
     setEditingCategory(null)
     setFormData({ name: "", color: "#22c55e", keywords: [], parentId })
@@ -282,12 +293,66 @@ export default function CategoriesPage() {
             </div>
           </div>
 
+          {/* Barre de recherche et contrôles */}
+          <div className="flex items-center gap-3">
+            <div className="relative flex-1 max-w-sm">
+              <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
+              <Input
+                placeholder="Rechercher une catégorie ou un mot-clé..."
+                value={searchQuery}
+                onChange={(e) => setSearchQuery(e.target.value)}
+                className="pl-9"
+              />
+              {searchQuery && (
+                <button
+                  onClick={() => setSearchQuery("")}
+                  className="absolute right-3 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
+                >
+                  <X className="w-4 h-4" />
+                </button>
+              )}
+            </div>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={allExpanded ? collapseAll : expandAll}
+            >
+              <ChevronsUpDown className="w-4 h-4 mr-2" />
+              {allExpanded ? "Tout replier" : "Tout déplier"}
+            </Button>
+          </div>
+
           {/* Liste des catégories par parent */}
           <div className="space-y-1">
-            {parentCategories.map((parent) => {
-              const children = childrenByParent[parent.id] || []
+            {parentCategories
+              .filter((parent) => {
+                if (!searchQuery.trim()) return true
+                const query = searchQuery.toLowerCase()
+                // Afficher si le parent matche
+                if (parent.name.toLowerCase().includes(query)) return true
+                if (parent.keywords.some((k) => k.toLowerCase().includes(query))) return true
+                // Ou si un enfant matche
+                const children = childrenByParent[parent.id] || []
+                return children.some(
+                  (c) =>
+                    c.name.toLowerCase().includes(query) ||
+                    c.keywords.some((k) => k.toLowerCase().includes(query))
+                )
+              })
+              .map((parent) => {
+              const allChildren = childrenByParent[parent.id] || []
+              // Filtrer les enfants aussi si recherche active
+              const children = searchQuery.trim()
+                ? allChildren.filter(
+                    (c) =>
+                      c.name.toLowerCase().includes(searchQuery.toLowerCase()) ||
+                      c.keywords.some((k) => k.toLowerCase().includes(searchQuery.toLowerCase())) ||
+                      // Garder tous les enfants si le parent matche
+                      parent.name.toLowerCase().includes(searchQuery.toLowerCase())
+                  )
+                : allChildren
               const stats = getCategoryStats(parent.id, true)
-              const isExpanded = expandedParents.has(parent.id)
+              const isExpanded = expandedParents.has(parent.id) || (searchQuery.trim() !== "" && children.length > 0)
 
               return (
                 <div key={parent.id} className="border rounded-lg bg-card">
diff --git a/lib/defaults.ts b/lib/defaults.ts
index fcf53d8..5827378 100644
--- a/lib/defaults.ts
+++ b/lib/defaults.ts
@@ -18,7 +18,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "alimentation",
-    name: "🛒 Alimentation",
+    name: "Alimentation",
     color: "#22c55e",
     icon: "utensils",
     keywords: [],
@@ -84,7 +84,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "transport",
-    name: "🚗 Transport",
+    name: "Transport",
     color: "#3b82f6",
     icon: "car",
     keywords: [],
@@ -201,7 +201,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "logement",
-    name: "🏠 Logement",
+    name: "Logement",
     color: "#f59e0b",
     icon: "home",
     keywords: [],
@@ -291,7 +291,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "sante",
-    name: "💊 Santé",
+    name: "Santé",
     color: "#ef4444",
     icon: "heart",
     keywords: [],
@@ -385,7 +385,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "loisirs",
-    name: "🎬 Loisirs",
+    name: "Loisirs",
     color: "#8b5cf6",
     icon: "gamepad",
     keywords: [],
@@ -482,7 +482,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "shopping",
-    name: "👕 Shopping",
+    name: "Shopping",
     color: "#06b6d4",
     icon: "shopping-bag",
     keywords: [],
@@ -548,7 +548,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "abonnements",
-    name: "📱 Abonnements",
+    name: "Abonnements",
     color: "#8b5cf6",
     icon: "repeat",
     keywords: [],
@@ -592,7 +592,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "finance",
-    name: "💰 Finance",
+    name: "Finance",
     color: "#64748b",
     icon: "landmark",
     keywords: [],
@@ -691,7 +691,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "revenus",
-    name: "💵 Revenus",
+    name: "Revenus",
     color: "#10b981",
     icon: "wallet",
     keywords: [],
@@ -749,7 +749,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "voyage",
-    name: "✈️ Voyage",
+    name: "Voyage",
     color: "#a855f7",
     icon: "plane",
     keywords: [],
@@ -793,7 +793,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "education",
-    name: "📚 Éducation",
+    name: "Éducation",
     color: "#0284c7",
     icon: "graduation-cap",
     keywords: [],
@@ -836,7 +836,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "animaux",
-    name: "🐕 Animaux",
+    name: "Animaux",
     color: "#ea580c",
     icon: "paw-print",
     keywords: [
@@ -857,7 +857,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "auto",
-    name: "🔧 Auto & Moto",
+    name: "Auto & Moto",
     color: "#78716c",
     icon: "car",
     keywords: [],
@@ -899,7 +899,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "dons",
-    name: "🎁 Dons & Cadeaux",
+    name: "Dons & Cadeaux",
     color: "#f43f5e",
     icon: "gift",
     keywords: [],
@@ -935,7 +935,7 @@ export const defaultCategories: CategoryDefinition[] = [
   // ═══════════════════════════════════════════════════════════════════════════
   {
     slug: "divers",
-    name: "❓ Divers",
+    name: "Divers",
     color: "#71717a",
     icon: "more-horizontal",
     keywords: [],