diff --git a/app.py b/app.py
index 9fcf085..f36b6e8 100644
--- a/app.py
+++ b/app.py
@@ -1182,6 +1182,10 @@ def file_mtime_filter(path):
         # return datetime.utcnow()
         return datetime.now(timezone.utc)
 
+@app.template_filter("todatetime")
+def to_datetime_filter(s):
+    return datetime.strptime(s, "%Y-%m-%d")
+
 
 @app.template_filter("filesizeformat")
 def filesizeformat_filter(path):
@@ -2126,20 +2130,59 @@ def crop_receipt_user():
 @login_required
 @admin_required
 def admin_panel():
-    now = datetime.now(timezone.utc)
+    month_str = request.args.get("month")
+    show_all = (month_str == "all")
+
+    if not show_all:
+        try:
+            if month_str:
+                year, month = map(int, month_str.split("-"))
+                now = datetime(year, month, 1, tzinfo=timezone.utc)
+            else:
+                now = datetime.now(timezone.utc)
+                month_str = now.strftime("%Y-%m")
+        except Exception:
+            now = datetime.now(timezone.utc)
+            month_str = now.strftime("%Y-%m")
+        start = now
+        end = (start + timedelta(days=31)).replace(day=1)
+    else:
+        now = datetime.now(timezone.utc)
+        start = end = None
 
     # Liczniki globalne
     user_count = User.query.count()
     list_count = ShoppingList.query.count()
     item_count = Item.query.count()
 
-    all_lists = ShoppingList.query.options(
+    base_query = ShoppingList.query.options(
         joinedload(ShoppingList.owner),
         joinedload(ShoppingList.items),
         joinedload(ShoppingList.receipts),
         joinedload(ShoppingList.expenses),
         joinedload(ShoppingList.categories),
-    ).all()
+    )
+
+    if not show_all and start and end:
+        base_query = base_query.filter(ShoppingList.created_at >= start, ShoppingList.created_at < end)
+
+    all_lists = base_query.all()
+    
+    # tylko listy z danych miesięcy
+    if db.engine.name == "sqlite":
+        month_col = func.strftime('%Y-%m', ShoppingList.created_at)
+    else:
+        month_col = func.to_char(ShoppingList.created_at, 'YYYY-MM')
+
+    active_months = (
+        db.session.query(month_col.label("month"))
+        .filter(ShoppingList.created_at != None)
+        .distinct()
+        .order_by("month")  # bez min()
+        .all()
+    )
+
+    month_options = [row.month for row in active_months]
 
     all_ids = [l.id for l in all_lists]
 
@@ -2213,6 +2256,7 @@ def admin_panel():
     )
 
     purchased_items_count = Item.query.filter_by(purchased=True).count()
+    
     expense_summary = get_admin_expense_summary()
     process = psutil.Process(os.getpid())
     app_mem = process.memory_info().rss // (1024 * 1024)
@@ -2248,6 +2292,10 @@ def admin_panel():
         table_count=table_count,
         record_total=record_total,
         uptime_minutes=uptime_minutes,
+        timedelta=timedelta,
+        show_all=show_all,
+        month_str=month_str,
+        month_options=month_options,
     )
 
 
diff --git a/static/css/style.css b/static/css/style.css
index 364f4ba..8a2f76c 100644
--- a/static/css/style.css
+++ b/static/css/style.css
@@ -328,6 +328,7 @@ input.form-control {
 .ts-dropdown {
   background-color: #212529 !important;
   color: #fff !important;
+  z-index: 9999 !important;
 }
 
 .ts-dropdown .active {
diff --git a/templates/admin/admin_panel.html b/templates/admin/admin_panel.html
index ec4453b..cbd01c2 100644
--- a/templates/admin/admin_panel.html
+++ b/templates/admin/admin_panel.html
@@ -127,6 +127,41 @@
   </div>
 </div>
 
+{% if not show_all %}
+{% set current_date = now.replace(day=1) %}
+{% set prev_month = (current_date - timedelta(days=1)).strftime('%Y-%m') %}
+{% set next_month = (current_date + timedelta(days=31)).replace(day=1).strftime('%Y-%m') %}
+{% endif %}
+
+<div class="d-flex justify-content-between align-items-center mb-3 flex-wrap gap-2">
+  <div>
+    {% if not show_all %}
+    <a href="{{ url_for('admin_panel', month=prev_month) }}" class="btn btn-outline-light btn-sm">
+      ← Poprzedni
+    </a>
+    <a href="{{ url_for('admin_panel', month=next_month) }}" class="btn btn-outline-light btn-sm">
+      Następny →
+    </a>
+    {% endif %}
+  </div>
+
+  <form method="get">
+    <div class="input-group input-group-sm">
+      <span class="input-group-text bg-secondary text-white">📅</span>
+      <select name="month" class="form-select bg-dark text-white border-secondary" onchange="this.form.submit()">
+        <option value="all" {% if show_all %}selected{% endif %}>Wszystkie miesiące</option>
+        {% for val in month_options %}
+        {% set date_obj = (val ~ '-01') | todatetime %}
+        <option value="{{ val }}" {% if month_str==val %}selected{% endif %}>
+          {{ date_obj.strftime('%B %Y')|capitalize }}
+        </option>
+        {% endfor %}
+      </select>
+    </div>
+  </form>
+</div>
+
+
 <div class="card bg-dark text-white mb-5">
   <div class="card-body">
     <h3 class="mt-4">📄 Wszystkie listy zakupowe</h3>
diff --git a/templates/admin/mass_edit_categories.html b/templates/admin/mass_edit_categories.html
index ffbca7f..a84d1ec 100644
--- a/templates/admin/mass_edit_categories.html
+++ b/templates/admin/mass_edit_categories.html
@@ -13,7 +13,7 @@
     <div class="card bg-dark text-white mb-5">
         <div class="card-body p-0">
             <div class="table-responsive">
-                <table class="table table-dark table-striped table-hover align-middle mb-0">
+                <table class="table table-dark table-striped table-hover align-middle mb-0 sortable">
                     <thead>
                         <tr>
                             <th scope="col">ID</th>
@@ -57,11 +57,4 @@
 {% block scripts %}
 <script src="https://cdn.jsdelivr.net/npm/tom-select/dist/js/tom-select.complete.min.js"></script>
 <script src="{{ url_for('static_bp.serve_js', filename='admin_mass_categories.js') }}"></script>
-
-<style>
-    .ts-dropdown {
-        z-index: 9999 !important;
-        /* 🔹 dropdown zawsze na wierzchu */
-    }
-</style>
 {% endblock %}
\ No newline at end of file