diff --git a/swh/web/assets/src/bundles/webapp/webapp-utils.js b/swh/web/assets/src/bundles/webapp/webapp-utils.js
--- a/swh/web/assets/src/bundles/webapp/webapp-utils.js
+++ b/swh/web/assets/src/bundles/webapp/webapp-utils.js
@@ -23,6 +23,11 @@
 };
 
 $(document).on('DOMContentLoaded', () => {
+  // set state to collapsed on smaller devices
+  if ($(window).width() < 992) {
+    collapseSidebar = true;
+  }
+
   // restore previous sidebar state (collapsed/expanded)
   if (collapseSidebar) {
     // hack to avoid animated transition for collapsing sidebar