diff --git a/web_menu_collapsible/README.rst b/web_menu_collapsible/README.rst
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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
+
+================
+Collapsible menu
+================
+
+This module makes all menus collapsible for all users.
+
+Second level menus are collapsed by default.
+
+.. image:: /web_menu_collapsible/static/description/menu_collapsible_1.png
+    :alt: In case first level menu is collapsed, click it to expand.
+
+.. image:: /web_menu_collapsible/static/description/menu_collapsible_2.png
+    :alt: In case first level menu is expanded, click it to collapse.
+
+Configuration
+=============
+
+No configuration is needed.
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+   :alt: Try me on Runbot
+   :target: https://runbot.odoo-community.org/runbot/162/9.0
+
+Known issues / Roadmap
+======================
+
+* The visual hint is initially in state 'collapsed' when is actually 'expanded' (this is Odoo's menu standard mechanism).
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/162/issues>`_. In case of trouble, please
+check there if your issue has already been reported. If you spotted it first,
+help us smashing it by providing a detailed and welcomed feedback.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Dennis Sluijk <d.sluijk@onestein.nl>
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit https://odoo-community.org.
\ No newline at end of file
diff --git a/web_menu_collapsible/__init__.py b/web_menu_collapsible/__init__.py
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+# -*- coding: utf-8 -*-
+# © 2016 Onestein (<http://www.onestein.eu>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
diff --git a/web_menu_collapsible/__openerp__.py b/web_menu_collapsible/__openerp__.py
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+# -*- coding: utf-8 -*-
+# © 2016 Onestein (<http://www.onestein.eu>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+{
+    'name': 'Collapsible menu',
+    'license': 'AGPL-3',
+    'images': [],
+    'summary': 'Foldable second level Odoo menu',
+    'author': 'Onestein,Odoo Community Association (OCA)',
+    'website': 'http://www.onestein.eu',
+    'category': 'Web',
+    'version': '9.0.1.0.0',
+    'depends': ['web'],
+    'data': [
+        'templates/menu_collapsible.xml',
+    ],
+}
diff --git a/web_menu_collapsible/static/description/icon.png b/web_menu_collapsible/static/description/icon.png
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diff --git a/web_menu_collapsible/static/description/menu_collapsible_1.png b/web_menu_collapsible/static/description/menu_collapsible_1.png
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diff --git a/web_menu_collapsible/static/description/menu_collapsible_2.png b/web_menu_collapsible/static/description/menu_collapsible_2.png
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diff --git a/web_menu_collapsible/static/src/css/menu_collapsible.css b/web_menu_collapsible/static/src/css/menu_collapsible.css
new file mode 100644
index 00000000..d8f6e2c1
--- /dev/null
+++ b/web_menu_collapsible/static/src/css/menu_collapsible.css
@@ -0,0 +1,43 @@
+.oe_secondary_menu_section {
+    height: 26px;
+    cursor: pointer;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+}
+
+.oe_secondary_menu_section.oe_menu_toggler {
+    margin-left: 18px;
+}
+
+.oe_secondary_submenu > li > a.oe_menu_leaf,
+.oe_secondary_submenu > li > a.oe_menu_toggler {
+    padding-left: 27px;
+}
+
+.oe_secondary_menu_section.oe_menu_toggler::before {
+    width: 0;
+    height: 0;
+    display: inline-block;
+    content: "&darr";
+    text-indent: -99999px;
+    vertical-align: top;
+    margin-left: -12px;
+    margin-top: 4px;
+    margin-right: 4px;
+    border-top: 4px solid transparent;
+    border-bottom: 4px solid transparent;
+    border-left: 4px solid #4c4c4c;
+    filter: alpha(opacity=50);
+    opacity: 0.5;
+}
+
+.oe_secondary_menu_section.oe_menu_toggler.oe_menu_opened::before {
+    margin-top: 6px;
+    margin-left: -16px;
+    margin-right: 4px;
+    border-left: 4px solid transparent;
+    border-right: 4px solid transparent;
+    border-top: 4px solid #4c4c4c;
+}
diff --git a/web_menu_collapsible/static/src/js/menu_collapsible.js b/web_menu_collapsible/static/src/js/menu_collapsible.js
new file mode 100644
index 00000000..35b8fb55
--- /dev/null
+++ b/web_menu_collapsible/static/src/js/menu_collapsible.js
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+odoo.define('web_menu_collapsible.Menu', function(require) {
+"use strict";
+    var $ = require('$'),
+        Menu = require('web.Menu');
+
+    Menu.include({
+        start: function() {
+            var self = this;
+            $(".oe_secondary_submenu").hide();
+            $(".oe_secondary_menu_section").each(function() {
+                if($(this).next().hasClass('oe_secondary_submenu')) {
+                    $(this).unbind("click");
+                    $(this).click(self.section_clicked);
+                    $(this).addClass('oe_menu_toggler');
+                }
+            });
+            return this._super.apply(this, arguments);
+        },
+        section_clicked: function() {
+            $(this).toggleClass('oe_menu_opened').next().toggle();
+        }
+    });
+});
diff --git a/web_menu_collapsible/templates/menu_collapsible.xml b/web_menu_collapsible/templates/menu_collapsible.xml
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--- /dev/null
+++ b/web_menu_collapsible/templates/menu_collapsible.xml
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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <template id="assets_backend_menu_collapsible" name="assets.backend.menu.collapsible" inherit_id="web.assets_backend">
+        <xpath expr="." position="inside">
+            <link rel="stylesheet" href="/web_menu_collapsible/static/src/css/menu_collapsible.css" />
+            <script type="text/javascript" src="/web_menu_collapsible/static/src/js/menu_collapsible.js"></script>
+        </xpath>
+    </template>
+</odoo>