The Char Limiter is a plugin that limits the amount of characters in input and textarea, with the option of generating an automatic counter or you can create the counter and inform its class.
NobleCount is a customizable jQuery plugin for a more improved counting of the remaining characters, and handling of resulting behaviors, of a text entry object, e.g. input textfield, textarea. Also, NobleCount supports pre-existing text within the text object and jQuery chaining.
A jQuery plugin that adds a character counter to inputs and textareas. When writing in a text/input field, a count will be shown next to it. You can modify plugin with many settings.