Pure JavaScript multi-level drop-down menu.

A dependency-free Vanilla JS Accordion Menu Nested

A utility for creating toggleable items with JavaScript. Inspired by bootstrap's toggle utility. Implemented in vanillaJS in a functional style.

toggle-all is a vanilla JavaScript content toggle library designed for developers to quickly create accordion, tooltip, popover, dropdown, toggle menu, tabbed content components on the web app.

MetisMenu: Collapsible menu plugin with Vanilla-JS

A pure Javascript module for accordion/collapse UI without jQuery

Simple click-triggered navigation submenus. Accessible and progressively enhanced.

Who doesn't like a good dropdown navigation menu? It feels almost the same as a regular HTML list, however it appears more organized. It's pretty easy to achieve a simple multi-level dropdown without JavaScript, but I wanted to create something mobile friendly and this plugin may be of your interest.