Elegant Select Element Replacement In Pure JavaScript – vanilla-select
vanilla-select is a pure vanilla JavaScript plugin used for rendering a dynamic, searchable dropdown list/menu to replace the native select box.
JavaScript & CSS dropdown
Multi-select Dropdown Component For JavaScript – slim-select
slim-select is a small and dependency-free JavaScript plugin for creating a searchable, multi-selectable dropdown list from a regular select element.
Minimalist Dropdown Box In Pure JavaScript – dropdown.js
dropdown.js is a really small JavaScript library that appends an easy-to-style dropdown list to any element when clicked.
Accessible Custom Dropdown Menu – dropmic
dropmic is a tiny, zero-dependency JS library that appends a minimal clean dropdown/popup menu to any element when triggered.
Configurable Multi-level Dropdown Menu Library – Contextmenu
Contextmenu.js is a lightweight vanilla JavaScript library for generating dynamic multi-level dropdown menu from plain html and JavaScript.
Custom Select Dropdown with Live Filter – Selectem
Selectem is a lightweight JavaScript library for create a custom CSS3 animated select dropdown with a live filter.
Material Inspired Animated Dropdown Menu
A Material Design inspired animated dropdown menu that uses CSS3 transitions & transforms for menu open / close animations.
Creating Popup Dropdowns with JavaScript and CSS3
An animated and touch-enabled dropdown component that uses CSS3 transforms and transitions to popup a dropdown list as you click on the toggle button.
Pure CSS Mobile-compatible Responsive Dropdown Menu
A pure CSS responsive menu that automatically changes to a toggleable dropdown menu at a specified breakpoint based on CSS3 media queries.
Simple Clean Pure CSS3 Dropdown Menu
A simple clean, animated , multi-level dropdown navigation menu written in pure CSS/CSS3.