diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -55,6 +55,9 @@ MainWindow::MainWindow(QWidget *parent) 
     QObject::connect(ui->actionExportCsv, &QAction::triggered,
                      this, &MainWindow::onExportCsv);
 
+    QObject::connect(ui->actionQuit, &QAction::triggered,
+                     this, &MainWindow::close);
+
     QObject::connect(&portControl, &PortControl::portToggled,
                      this, &MainWindow::onPortToggled);
 
diff --git a/mainwindow.ui b/mainwindow.ui
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -466,6 +466,8 @@
      <string>File</string>
     </property>
     <addaction name="actionExportCsv"/>
+    <addaction name="separator"/>
+    <addaction name="actionQuit"/>
    </widget>
    <addaction name="menuFile"/>
    <addaction name="menuHelp"/>
@@ -524,6 +526,14 @@
     <string>Export plot data to CSV</string>
    </property>
   </action>
+  <action name="actionQuit">
+   <property name="text">
+    <string>Quit</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Q</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>