jQuery Knob is powerful jQuery plugin that helps users to create beautiful circular switches like volume controls. It works by transforming any given input fields according to the values defined in its attributes and can be drag-and-dropped to change the value.

It also facilitates users to define the min-max values, default value on initial load, color and put it into read only mode. It supports touch, mousewheel and keyboard events. It is released under GPL and MIT license.

Requirements: -
Demo: http://anthonyterrien.com/knob/
License: MIT, GPL License