Bootstrap is a CSS toolkit from Twitter designed to kickstart development of web apps and websites. It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.

Bootstrap is built with Less and was designed to work out of the gate with only modern browsers in mind.

You can use Twitter Bootstrap in one of two ways: just drop the compiled CSS into any new project and start cranking, or run LESS on your site and compile on the fly like a boss.

jQuery Timelinr is a jQuery plugin helps you to give more life to the boring timelines by creating animated sliding timelines.

It offers great flexibility by supporting horizontal and vertical timelines and you can parameterize the majority of attributes including speed, transparency.

HybridAuth is an open source web-based authentication and authorisation solution that combines the strengths of several major social networks and Identity Providers services into one simple PHP Library.

This PHP Library for social services authentication supports many social platforms including Facebook, Twitter, Google, Yahoo, MySpace, LinkedIn, FourSquare, OpenID and many other Identity providers.

Major Features

• Authenticate users with a wide variety of well known social websites
• Provide the connected user profile’s in a rich, simple and standardized structure across all the social APIs
• The complexity of implementing identity providers authentication and authorization protocols are simplified for the developers
• All transactions are completely transparent to the end user

ElasticSearch is an open source, distributed RESTful search engine built for the cloud on top of Lucene. ElasticSearch is schema less, just toss it a typed JSON document and it will automatically index it.

Search can be executed either using a simple, Lucene based query string or using an extensive JSON based search query DSL. Search though does not end with just queries, facets, highlighting, custom scripts, and more are all there to be used when needed.

Signature Pad is a jQuery plugin for assisting in the creation of an HTML5 canvas based signature pad. Records the drawn signature in JSON for later regeneration.

The Signature Pad jQuery plugin will transform an HTML form into a signature pad.

The Signature Pad has two modes:

TypeIt: The user’s signature is automatically generated as HTML text, styled with @font-face, from the input field where they type their name.

DrawIt: The user is able to draw their signature on the canvas element.

Opa is an open source cloud language claims to be the next generation of web development platform. It is a new programming language, a new web server, a new database and a new distributed execution engine, all of them tightly integrated to provide a great experience for web developers.

Opa is built from the bottom-up for Cloud applications, and shines most with applications that require scalability, security, interactivity, real-time web and complex data manipulation.

Opa is concise, simple and readable, it is also extremely powerful, concurrent, dynamically distributed, and extremely secure, much more so than just about any other programming language. Opa is designed to make web development fun, secure and right.

For designers and developers, a good collection of icons is a valuable asset any day. That is why, professional designers have huge number of icons of all sizes, colors, styles and themes. If you have not started maintaining your own vault of free icons, start collecting them today.

Greepit has shared a number of handsome collections of free icons that can start with. Do not forget to check out Greepit’s premium collection of free vector icons and today’s featured icon collection,  DDIcons .

DDIcons is a set of 65 colorful PSD and PNG Application Icons for your next personal or commercial project. A very useful set for designers and developers which includes the commonly used icons along-with their source files to let you modify at your own.

The paradigm of web and UI design is changing rapidly to provide interactive and smooth user experience on touch-based devices. This changes not only the design patterns but also the user controls and screen objects. Those designed for ‘conventional’ machines and browsers are not really good for ‘new generation’ clients like iPad, tablets and other touch-enabled devices.

There is already a lot of development going on to provide alternative to existing screen objects and user controls that can be used for web applications and interfaces designed specifically for touch-based interfaces. Take the example of Mobiscroll.

Mobiscroll is a free jQuery plugin that provides date/time picker tool in a wheel scroller fashion for touchscreens.

Mobiscroll allows users to select date/time easily on a touch-based device in an interactive manner. It can be customized support any custom values and can even be used as an intuitive alternative to the native select control (dropdown list). The control is themable, comes with pre-defined, nice looking color schemes and you can easily change the appearance using CSS.

As the saying goes: Big things come in small packages. Chop Slider proves it true. Packaged in just 6KB, ChopSlider delivers awesome and powerful image slider with unlimited transition effects. In fact, it is more than a simple image slider. It allows you to create your own custom transition effects that harness the power of CSS3 and jQuery to provide amazing animations that load fast and render smooth effects.

Transitions and animations are easy to customize and are work perfectly for mobile devices and all major browsers. For devices (iPhone, iPod, Symbian, BlackBerry, Android and other) and browsers that do not support CSS3 transitions, you can set specific parameters to ensure flawless animations. The only limitation with ChopSlider is your imagination and creativity.

Sprite3D is a simple javascript library that uses the power of CSS transforms for rendering HTML objects in 3D without requiring WebGL enabled browsers, any JavaScript dependencies or complexities of HTML5 canvas element.

Sprite3D manipulates 3D positioning of objects via simple JavaScript to achieve smooth rendering of 3D animations. Since, object manipulation is done using 3D positioning, the entire transformation is hardware accelerated thus works decently for Apple devices as well.

Major Features

• AS3-style properties
• Lots of accessor methods
• S3-style scenography
• S-style method chaining
• Support for sprite sheets