ax5ui-menu is a simple context menu with jQuery. It can easily and powerfully use in subMenu of menuBar or ContextMenu.
Yamm is a lightweight and pure CSS megamenu that uses the standard navbar markup and the fluid grid system classes from Bootstrap 3.
hiraku.js is a jQuery plugin to create offcanvas menu.
Ember Burger Menu is an off-canvas sidebar component with a collection of animations and styles using CSS transitions.
Bootstrap Dropdown Slidemorph Menu inspired by Youtube context menus within a video player. Transitions between submenus create very neat experience. Also, menu provides information about selected values for each item.
basicContext is an easy-to-use context-menu for your website or webapp.
OffCanvas is a lightweight, flexible jQuery off-canvas navigation plugin which lets you create fully accessible sidebar or top/bottom sliding (or push) panels with keyboard interactions and ARIA attributes.
A tutorial about creating awesome sidebar navigation with Bootsrap 3 and jQuery.
A tutorial about creating a simple hamburger menu example using HTML, CSS and jQuery.
jQuery Hamburger Icon Menu combines the two popular trends of a full screen menu and using an "hamburger" style icon to toggle it to create a lightweight, elegant mobile friendly site menu.