Lightweight, easy to use and no dependencies.
jQuery Tree plugin allows you to create tree structure using Bootstrap or Material Design styles. Free open source plugin distributed under MIT License.
Bootstrap File Input plugin standardizes the file input field to look like a Bootstrap button in all browsers.
multi.js is a user-friendly replacement for select boxes with the multiple attribute. It is mobile-friendly, easy to use, and provides search functionality. multi.js is also easy to customize and style with CSS.
Fajax is a lightweight jQuery plugin for ajaxifying forms with file support. It's wrapper of
vDrop is a minimalistic and customisable jQuery plugin to replace standard HTML select dropdowns.
number-divider.js is a jQuery plugin to divide numbers. You can divide numbers in inputs and simple HTML tags. If you wish use it in form then formatted values will be auto replaced on original values.
input-mask.js enables you to include a mask on any input where a specific data entry format is required. The placeholder text remains in place, displaying which characters still need to be included. The placeholder is CSS styleable.
Pretty Dropdowns is a simple, lightweight jQuery plugin that converts
<select> drop-down menus into "pretty" menus that you can style using CSS. As an extra bonus, it does its best to keep the menu options within the viewport.
It has a plugin-based architecture, first-class support for resumable uploads according to the open standard: tus, and custom encoding backends, making it extensible and robust.