diff --git a/nullboard.html b/nullboard.html
index 258587c..f32b3e5 100644
--- a/nullboard.html
+++ b/nullboard.html
@@ -1166,6 +1166,7 @@
          <a href=# class=exp-board>Export board...</a>
          <a href="#" class="switch-theme">Use <i>light</i><b>dark</b> theme</a>
          <a href="#" class="switch-fsize">Use <i>smaller</i><b>larger</b> font</a>
+         <a href="#" class="flush-namespace">Flush namespace</a>
          <a href="#" class="switch-namespace">Set namespace</a>
       </div>
    </div>
@@ -3066,6 +3067,19 @@
       return true;
    });
 
+   $('.config .flush-namespace').click(function() {
+      var namespace = getCurrentNamespace();
+      var confirmation = confirm("Are you sure you want to clear " + namespace + "?");
+      if (! confirmation)
+         return false;
+      globalStorage.forEach((k) => {
+         globalStorage.del(k);
+      });
+      popAllNamespaces(namespace);
+      setGlobalNamespace(getAllNamespaces()[0]);
+      return false;
+   });
+
    $('.config .switch-namespace').click(function() {
       var namespace = prompt("Namespace", getCurrentNamespace());
       if (namespace != getCurrentNamespace())