Pickadate.js is a jQuery date picker with multi-language support. It’s responsive and lightweight date picker with browser support for IE7+, Chrome, Firefox, Safari, Opera, iOS Safari and Android browser.

Junior is a front-end framework for building HTML5 mobile apps with a native look and feel.

• CSS3 Transitions optimized for mobile performance.
• Swipable carousels using flickable.js.
• Integration with backbone.js views and routers.
• Ratchet CSS UI components.
• Try loading this page on a mobile phone or try our “simulator” to the right.

ParamQuery grid is a lightweight jQuery grid plugin inspired by MS Excel and Google spreadsheet. It’s based upon jQueryUI Widget factory which is an excellent design pattern for UI controls with consistent API.

If offers sorting, paging, resizable columns with resizable width and height.

Features

• Freeze any number of Columns like Excel
• Display any data source format like HTML, Array, XML, JSON, etc
• Can be used with any server side framework e.g. ASP.NET, MVC3, JSP, JSF, PHP
• Virtual Scrolling and Rendering
• Inline Editing of cells

CSS Browser Selector + is a very small JavaScript which empowers CSS selectors. Selector + CSS Browser is good help to develop a cross-browser site without using Hacks.

With it you can develop responsive sites for browsers that do not support Media Queries module (CSS3) and without using hacks (not character validated by W3C).

The script adds classes that do a deep scan on the client browser, opening up a range of opportunities for customization, thus being able to extend these capabilities to even newer browsers.

Dropzone.js is a lightweight open source library that provides drag’n’drop file uploads. It supports image previews and shows nice progress bars. You can register to different events to control how and which files are uploaded.

It turns an HTML element into a dropzone, this means that a user can drag and drop a file onto it, and the file gets uploaded to the server via AJAX.

• Image thumbnail previews
• Multiple files and synchronous uploads
• Progress updates
• Support for large files

Framer is a modern prototyping tool. It can help you to quickly build and test complex interactions and rich animations for both desktop and mobile.

It Uses webkit CSS transforms to render on the GPU for smooth performance and works great in desktop and mobile Safari or Chrome. Offline too. Framer can be seen as an alternative to Flash or Quartz Composer. It’s targeted at designers that can do basic javascript, up until experienced interface programmers.

Game-Icons is an ever growing collection of SVG and PNG icons for games and apps. Dozen new symbols are added weekly and organized in intuitive categories to offer both a comfy browsing and let room for serendipity.

All the images are downloadable in a vector format, so you can easily tweak colors, rotation and adjust effects like blur, bevels or shadows. Another direct benefit is infinite scaling, it means no size limit for the resulting files which can be used for high resolution interfaces, retina display, logos, stencils etc…

jKit is an easy to use, cross platform, jQuery based UI toolkit, that’s still small in size, has the features you need, and doesn’t get in your way of doing things!

There are a lot of effects and components, including tooltips, charts, parallax scrolling, and a lightbox. The project has detailed documentation on each of the bundled plugins.

jKit has most of the features you ever need. And even if jKit doesn’t have that one feature you need right now, jKit is fully extendable with plugins and command replacements, all that and your API always stays the same.

Conditionizr is an intelligent jQuery plugin, that detects the end-users browser and pixel ratio, allowing you to serve specific conditional JavaScript and CSS files they need.

With legacy browsers, we often see Conditionial statements wrapped around our HTML element, so the browser can use the HTML tag relevant to the browser. Conditionizr steps in to take this conditional approach one step further, detecting those IE versions, and adds the relevant class-name to the HTML tag. This means no more conditional statements on the HTML tag.

Elusive Icons is a collection of 268 free vector icons focused for Twitter Bootstrap.

It’s actually a webfont that can be used with any of your projects. Bootstrap-based, Foundation-based or even your custom projects. It was created by the need for an Open-Source font that can be used in your projects without licencing issues and/or other “attribution” claws.