diff --git a/desktop_viewer.py b/desktop_viewer.py
index cfe2b62..f078f6e 100644
--- a/desktop_viewer.py
+++ b/desktop_viewer.py
@@ -189,7 +189,14 @@ class VersaPadViewer(tk.Tk):
             toggles_row, text="Programmiermodus", variable=self.editing,
             command=self._on_toggle_editing, bg=BG, fg=TEXT, selectcolor=CARD_BG,
             activebackground=BG, activeforeground=TEXT, font=("Segoe UI", 9, "bold"))
-        self.edit_check.pack(side="left")
+        self.edit_check.pack(side="left", padx=(0, 20))
+
+        self.always_on_top = tk.BooleanVar(value=False)
+        self.topmost_check = tk.Checkbutton(
+            toggles_row, text="Immer im Vordergrund", variable=self.always_on_top,
+            command=self._on_toggle_topmost, bg=BG, fg=TEXT, selectcolor=CARD_BG,
+            activebackground=BG, activeforeground=TEXT, font=("Segoe UI", 9, "bold"))
+        self.topmost_check.pack(side="left")
 
         self.prog_row = tk.Frame(self, bg=BG)
         for text, cmd in (
@@ -285,6 +292,9 @@ class VersaPadViewer(tk.Tk):
                 self._render()
         self.after(POLL_MS, self._poll)
 
+    def _on_toggle_topmost(self):
+        self.attributes("-topmost", self.always_on_top.get())
+
     # ── Live-Sync mit dem Board ────────────────────────────────────
 
     def _on_toggle_sync(self):