Mega menu is part of header navigation which allows us to add multiple links on a single link. It is beneficial when to develop a big project link e-commerce website which has I multiple categories and large product database. here is a list of best responsive mega menu snippets with demo and code links.
Bootstrap Progressbar snippets

Bootstrap 4 Mega Menu

Responsive onClick mega dropdown using bootstrap 4.
Bootstrap Progressbar snippets

Bootstrap 4 Mega Menu Responsive

Complete modern responsive website navigation system Promoted
Bootstrap Progressbar snippets

Bootstrap 4 Mega Dropdown Menu

Brand logo with onclick mega dropdown menu using bootstrap 4.
Bootstrap Progressbar snippets

On Hover Bootstrap 4 Mega Menu

Hover mega dropdown menu using bootstrap 4.
Bootstrap Progressbar snippets

E-commerce tab mega menu using Bootstrap 4

Categories tabing inside mega menu in bootstrap 4 framework.
Bootstrap Progressbar snippets

Bootstrap 4 Mega Dropdown Menu Navbar

Full width categories mega menu using bootstrap 4 framework.
Bootstrap Progressbar snippets

Mega Dropdown Menu Navbar - Bootstrap 4

Gry color categories mega menu using bootstrap 4 framework.
Bootstrap Progressbar snippets

Mega Menu for Bootstrap 4

On click multiple mega menu using bootstrap 4.
Bootstrap Progressbar snippets

Fixed Top Bootstrap 4 Mega Menu

Top sticky mega menu with images, cards, grid option using bootstrap 4.
Bootstrap Progressbar snippets

Megamenu in Bootstrap 4

Multi column mega menu using bootstrap 4.
Bootstrap Progressbar snippets

Simple Bootstrap 4 Mega Menu

Simple on click mega menu using bootstrap 4.
Bootstrap Progressbar snippets

Bootstrap 4 Mega Menu

Left brand logo and rightside normal and mega dropdown menu using bootstrap 4.
Bootstrap Progressbar snippets

Simple Bootstrap 4 Fluid Mega Menu

Fluid mega menu, images and link columns using bootstrap 4.