Blur.js is a jQuery plugin that produces psuedo-transparent blurred elements over other elements.

Blur.js is a flexible and powerful plugin with options like blur radius, making the element draggable and changing the overlay color.

Graphene is a realtime dashboard & graphing toolkit based on D3.JS and Backbone.

Combining D3′s immense capabilities of managing live data, and Backbone’s ease of development, Graphene provides a solution capable of displaying thousands upon thousands of datapoints in your dashboard, as well as presenting a very hackable project to build on and customize.

It generates colors based on HSL, takes the next color on the wheel serially, and keeping a good distance for a good contrast.

TweenJS is a tweening and animation library for JavaScript and HTML5. It provides an extremely simple API for creating complex sequenced animations in Javascript. It includes basic (experimental) support for working with style sheets.

TweenJS also includes a collection of easing functions, and a Timeline class that lets you synchronize & control a collection of tweens.

One.color is a JavaScript color calculation toolkit, works in node.js and in the browser. The color object automatically installs implicit conversions to different color spaces when needed, and adds get/set/adjust methods of any color channel in any available color space.

All implicit conversions are done using floating point, so no precision is lost due to rounding errors when converting between color spaces.

Major Features

• RGB, HSV, HSL and CMYK color space implementations
• Alpha channel
• Extensible architecture - implement your own color spaces easily
• Chainable color manipulation
• Seamless conversion between color spaces on demand
• Outputs as Hex, RGB or HSV in css syntax with or without alpha channel

The code is fully documented, and you can use JSdoc to build the documentation.

Page Scroller is a powerful JavaScript based smooth scrolling navigation system that utilizes the robust jQuery library. Created entirely with ease of use in mind, the plugin will work on any website.

Resizer is a very handy bookmarklet for web enthusiasts which allows you to quickly change the dimensions of a webpage to test responsive design.

Install the bookmarklet by simply dragging Resizer button to your bookmarks bar. Test any site for responsive dimensions by clicking the Resizer bookmarklet on your bookmarks bar.

Resizer is also available as Chrome Extension.

noty is a jQuery plugin that makes it easy to create alert, success, error and confirmation messages as an alternative the standard alert dialog. Each notification is added to a queue.

The notifications can be positioned at the top, bottom, centre, top left or top right. There are lots of other options in the API to customise the text, animation, speed, buttons and much more.

It also has various callbacks for the buttons, opening closing the notifications and queue control.

Recommended: Designing User Friendly Websites and Applications with Notify!

Tinycon is a small library for manipulating the favicon, in particular adding alert bubbles and changing images.

Tinycon gracefully falls back to a number in title approach for browsers that don’t support canvas or dynamic favicons.

Alert bubble in the favicon allows users to pin a tab and easily see if their attention is needed.

jQuery Geo is an open source geospatial mapping jQuery plugin from Applied Geographics developed with the intention of making spatial web mapping significantly simpler than it may initially seem.

jQuery Geo provides a streamlined JavaScript API for a large percentage of your online mapping needs. Whether you just want to display a map on a web page as quickly as possible or you are a more advanced GIS user, jQuery Geo can help!

It helps make interacting with various web mapping servers and tile sets such as Open Street Map, WMS and Esri ArcGIS Server as simple as possible.

The primary component of this Geospatial plugin is a single user interface widget that pulls in tiled or dynamic map images from map servers. By default, this component targets Open Street Map tiles but can be easily configured to use other WMS layers or cached tile sets.

Flotr2 is an Open Source JavaScript library for drawing HTML5 charts and graphs. It is a branch of flotr which removes the Prototype dependency and includes many improvements.

Major Features

• Mobile Support
• Framework Independent
• Extensible Plugin Framework
• Custom Chart Types
• FF, Chrome, IE6+, Android, iOS Compatibility