diff --git a/src/tagstudio/qt/main_window.py b/src/tagstudio/qt/main_window.py
index 88fdfb4fc..a0200182b 100644
--- a/src/tagstudio/qt/main_window.py
+++ b/src/tagstudio/qt/main_window.py
@@ -304,6 +304,34 @@ def setup_view_menu(self):
         self.show_filenames_action.setCheckable(True)
         self.view_menu.addAction(self.show_filenames_action)
 
+        self.view_menu.addSeparator()
+
+        self.decrease_thumbnail_size_action = QAction(
+            Translations["menu.view.decrease_thumbnail_size"], self
+        )
+        self.decrease_thumbnail_size_action.setShortcut(
+            QtCore.QKeyCombination(
+                QtCore.Qt.KeyboardModifier(QtCore.Qt.KeyboardModifier.ControlModifier),
+                QtCore.Qt.Key.Key_Minus,
+            )
+        )
+        self.decrease_thumbnail_size_action.setToolTip("Ctrl+-")
+        self.view_menu.addAction(self.decrease_thumbnail_size_action)
+
+        self.increase_thumbnail_size_action = QAction(
+            Translations["menu.view.increase_thumbnail_size"], self
+        )
+        self.increase_thumbnail_size_action.setShortcut(
+            QtCore.QKeyCombination(
+                QtCore.Qt.KeyboardModifier(QtCore.Qt.KeyboardModifier.ControlModifier),
+                QtCore.Qt.Key.Key_Equal,
+            )
+        )
+        self.increase_thumbnail_size_action.setToolTip("Ctrl+=")
+        self.view_menu.addAction(self.increase_thumbnail_size_action)
+
+        self.view_menu.addSeparator()
+
         self.addMenu(self.view_menu)
 
     def setup_tools_menu(self):
diff --git a/src/tagstudio/qt/ts_qt.py b/src/tagstudio/qt/ts_qt.py
index 036dac1c5..2c48a6275 100644
--- a/src/tagstudio/qt/ts_qt.py
+++ b/src/tagstudio/qt/ts_qt.py
@@ -486,9 +486,28 @@ def on_show_filenames_action(checked: bool):
             self.settings.show_filenames_in_grid
         )
 
+        def on_decrease_thumbnail_size_action():
+            new_val = self.main_window.thumb_size_combobox.currentIndex() + 1
+            if not (new_val + 1) > len(self.main_window.THUMB_SIZES):
+                self.main_window.thumb_size_combobox.setCurrentIndex(new_val)
+
+        self.main_window.menu_bar.decrease_thumbnail_size_action.triggered.connect(
+            on_decrease_thumbnail_size_action
+        )
+
+        def on_increase_thumbnail_size_action():
+            new_val = self.main_window.thumb_size_combobox.currentIndex() - 1
+            if not new_val < 0:
+                self.main_window.thumb_size_combobox.setCurrentIndex(new_val)
+
+        self.main_window.menu_bar.increase_thumbnail_size_action.triggered.connect(
+            on_increase_thumbnail_size_action
+        )
+
         # endregion
 
         # region Tools Menu ===========================================================
+
         def create_fix_unlinked_entries_modal():
             if not hasattr(self, "unlinked_modal"):
                 self.unlinked_modal = FixUnlinkedEntriesModal(self.lib, self)
@@ -631,8 +650,9 @@ def _update_browsing_state():
         )
 
         # Thumbnail Size ComboBox
+        self.main_window.thumb_size_combobox.setCurrentIndex(2)  # Default: Medium
         self.main_window.thumb_size_combobox.currentIndexChanged.connect(
-            lambda: self.thumb_size_callback(self.main_window.thumb_size_combobox.currentData())
+            lambda: self.thumb_size_callback(self.main_window.thumb_size_combobox.currentIndex())
         )
         self._update_thumb_count()
 
diff --git a/src/tagstudio/resources/translations/en.json b/src/tagstudio/resources/translations/en.json
index a5bc23c9a..6f29bd9f2 100644
--- a/src/tagstudio/resources/translations/en.json
+++ b/src/tagstudio/resources/translations/en.json
@@ -217,6 +217,8 @@
     "menu.tools.fix_duplicate_files": "Fix Duplicate &Files",
     "menu.tools.fix_unlinked_entries": "Fix &Unlinked Entries",
     "menu.tools": "&Tools",
+    "menu.view.decrease_thumbnail_size": "Decrease Thumbnail Size",
+    "menu.view.increase_thumbnail_size": "Increase Thumbnail Size",
     "menu.view": "&View",
     "menu.window": "Window",
     "namespace.create.description_color": "Tag colors use namespaces as color palette groups. All custom colors must be under a namespace group first.",