diff --git a/src/key-viewer-dialog.ui b/src/key-viewer-dialog.ui
new file mode 100644
index 0000000..e3b6e38
--- /dev/null
+++ b/src/key-viewer-dialog.ui
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>KeyViewerDialog</class>
+ <widget class="QDialog" name="KeyViewerDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="maximumSize">
+   <size>
+    <width>960</width>
+    <height>720</height>
+   </size>
+  </property>
+  <property name="windowTitle">
+   <string>NDN Key Viewer</string>
+  </property>
+  <property name="sizeGripEnabled">
+   <bool>true</bool>
+  </property>
+  <property name="modal">
+   <bool>false</bool>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout_2">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,1">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetMaximumSize</enum>
+     </property>
+     <item>
+      <widget class="QTreeView" name="treeView"/>
+     </item>
+     <item>
+      <widget class="QTableView" name="tableView"/>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>