jQuery File Upload is an open source extensible jQuery plugin that supports multiple file upload with lots of useful features including drag and drop, upload progress indicator and cross-site file uploads.

jQuery File Upload implementation is based on open standards like HTML5 and JavaScript and requires no additional browser plugins. This plugin uploads files via XMLHttpRequests (if supported) and uses iframes as fallback for legacy browsers.

It is compatible with any server-side application platform and works well with Google App Engine (Python, Java), Ruby on Rails, PHP and any other platform that supports HTTP file.

jRating is a flexible jQuery plugin for creating star rating systems with complete Ajax treatment.
jRating is very easy and simple to use, with many options and methods.

It comes with great flexibility and you can set the star size, number of stars and maximal rate.

Recommended: Open Source Feedback Collection and Polling Widget

jQuewy is a simple, fast and effective way to include jQuery plugins and Javascript libraries in your project. You simply download the jQuewy script, and run jQuewy functions to load commands.

jQuewy collects the latest libraries online, and automatically inserts them into the header of your page. jQuewy is faster than using a script tag because it loads all of the files from our Amazon S3 server, instead of their respective servers.

It currently includes many useful libraries including: jQuery UI, jQuery Tools, PrototypeJS, BackboneJS, LetteringJS, Flot and HTML5Shim.

carouFredSel is a jQuery plugin that turns any kind of HTML element into an infinite, circular carousel. It supports pagination and can scroll one or multiple items simultaneously, horizontal or vertical, automatically, by pressing buttons or keys on the keyboard.

carouFredSel Feetures

• Scrolls automatically and/or by user interaction
• Built in keyboard-navigation and pagination
• Dynamically add and remove items to/from the carousel
• Compatible with most popular (jQuery) lightbox-plugins
• Intelligent custom events and loads of options

Cached Commons is a collection of user-contributed javascript libraries that have been cached, optimized, and hosted on Github’s fast CDN.

The main goal is to aggregate the best-of Javascript and CSS libraries for rapid prototyping. It won’t have every javascript library because there’s 1000′s of jQuery Tooltip plugins out there, but only say 3 of them are really good.

You can easily download the libraries to your local project if you’d like, or feel free to directly link to the ones here.

Touch Gallery is an open source full-screen photo gallery for touch devices that brings the look and feel of native photo viewing applications to your mobile browser.

This open source photo gallery is a jQuery plugin and was primarily written and optimized for Mobile Safari running on the iPad or iPhone 4 but it also works fine in Dektop Safari, Firefox 4, as well as in Opera and Chrome.

Touch Gallery depends on two other plugins: transform and activity-indicator and both are packaged in one Javascript file you download with touch gallery.

jMediaelement (jme) is an HTML5 audio & video development kit for jQuery with Flash and VLC Fallback. This development kit focuses on flexibility, intuitive DOM-API and semantic code.

Features

• WAI-ARIA Enhanced Controls
• Hooks to Extend API, Controls and Plugin Support
• Plays ogg (theora/vorbis), mp4/mov (H.264), WebM (VP8/vorbis), FLV
• Themeable with jQuery UI

jme is not only another HTML5 audio video player, its intuitive to embed, style and code. It is trying to better integrate Flash and other Plugins into the HTML / DOM-World.

After the Deadline is a free online software with contextual spell checking, advanced style checking and intelligent grammar checking.

This free online spell checking software:

• Available as a Firefox add-on, Google Chrome extension and a WordPress plugin
• Cab be used on the website with plugins for jQuery and TinyMCE
• Can be embedded in your applications with server and front-end open source technologies

After the Deadline is multi-lingual and supports many languages including English, French, German and Russian.

FlareVideo is an open source HTML5 Video Player, easily customizable and themeable. It comes with full screen and fall back support to Flash for non-HTML5 browsers.

Supported video formats are:

• All browsers: MP4, FLV
• Firefox: Ogg
• Safari: MP4, MOV

This HTML5 Video Player has many options including autoplay, preload, autobuffer which can be used to customize according this to your own needs.

Google Chrome has helped web developers because of the features available in the web browser. Google Chrome has various AWESOME extensions that save developers time by giving them ability to track bugs and performance issues for their applications.

Lets have a look at few useful extensions for web developers.

Web Developer

The Web Developer extension adds a toolbar button to the browser with various web developer tools. This is the official port of the popular Web Developer extension for Firefox written by the same person.

It comes with many options including on-screen ruler, page re-size, multiple validation options, hidden elements viewer and color picker.

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