jQuery UI Progressbar

Displays a status indicator for loading state, standard percentage, and other progress indicators.

jQuery Upload File

jQuery Upload File plugin provides Multiple file Uploads with progress bar.Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.

jquery.ytLoad

A youtube inspired, simple, lightweight jQuery plugin to visualize ajax progress.

ProgressBar – jQuery Tiny Progress Bar

ProgressBar is a tiny and simple jQuery plugin that displays status of a determinate or indeterminate process.

jQuery Nyan Bars

jQuery plugin for animated text and progress bars parsed from a simple string language.

progressTimer

Simple jQuery plugin for using a Bootstrap progress bar as the visual representation for a timer.

jQuery progress bar

Simple jQuery Progress bar, Footprint < 1KB