Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.

Format input text content when you are typing

lightweight, powerful datetimepicker. zero dependencies

A fast and fully-featured autocomplete library

The hybrid of a textbox and <select> box. It's jQuery based and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc

The official jQuery user interface library

Input mask for React, Angular, Ember, & plain JavaScript

A refreshing JavaScript Datepicker — lightweight, no dependencies, modular CSS

Input Mask plugin

vanilla javascript input mask

lightweight, efficient Tags input component in Vanilla JS / React / Angular / Vue

Placing labels on a timeline without overlap

autoNumeric is a standalone library that provides live as-you-type formatting for international numbers and currencies.

React Input Format & Mask, tiny (≈650b) component to transform any input component into formatted or masked input

A JavaScript library to progressively highlight any text on a page.

A collection of lightweight common required JavaScript web components

Inspired Javascript Tree UI Element

Gijgo - Free Javascript Controls

Collection of tree view components for front-end frameworks.

Easily navigate the DOM and highlight the elements

Accessible W3C conform accordion written in ES6.

Make your multi select pretty and easy to use with only javascript.