These are jQuery and javascript plugins for responsive mega menu.
Mash Mega Menu - Bootstrap
Mega Menu Responsive - Bootstrap
Flex Mega Menu - Bootstrap
Vertu - Simple Mega Menu
Vertu – Simple Mega Menu is simple and easy mega menu with many functions.
Shifty Nav - a Fully Responsive JS CSS3 Mega Menu
Shifty Nav is a fully responsive CSS3 mega menu.
SolidMenu+ | Responsive Mega Menu
TaurusMenu - Responsive Mega Menu
TaurusMenu is a user-friendly, highly customizable, responsive mega menu.
Universal Responsive Mega Menu
FH Mega Menu - jQuery Bootstrap 3 Mega Menu Plugin
FlexMenu - jQuery Mega Menu for Bootstrap
FlexMenu is a lightweight and rich-feature solution for creation responsive site navigations.
Z Menu Maker - Drop Down and Mega Menu
Responsive Mega Menu Complete Set
