BlueGriffon is a rich WYSIWYG HTML content editor for the World Wide Web. Powered by Gecko, the rendering engine of Firefox 4, it’s a modern and robust solution to edit Web pages in conformance to the latest Web Standards.

BlueGriffon is an intuitive application that provides Web authors (beginners or more advanced) with a simple User Interface allowing to create attractive Web sites without requiring extensive technical knowledge about Web Standards.

BlueGriffon can create and edit all HTML 4, XHTML 1 and HTML 5 (both HTML and XML serializations) documents. It comes with exceptional CSS3 support and has its own CSS parser, JSCSSP. That parser written in JavaScript guarantees that the CSS styles you author are understandable by all the browsers on the market.

This html content editor also includes the popular SVG editor, SVG Edit and you can then draw vectorial graphics from within BlueGriffon to embed them into your documents.

Mobilizer is a free desktop application to preview your mobile websites, design mockups, and local HTML on Mac or PC.

Simply use any URL or drag and drop local HTML, Flash, or image files to preview your mobile websites on iPhone 4, Palm Pre, HTC Evo, and Blackberry Storm.

Designers can export PNGs of device views – perfect for portfolios.

Modern web applications are now increasingly leveraging the power of JavaScript to create dynamic interfaces. While most frameworks allow you to manipulate DOM, however, managing extensive changes in the document with each change of the view is somehow tricky. This is where you should use JavaScript templating language like Handlebars.js.

Handlebars.js is a JavaScript based templating language that allows you to build semantic templates. Handlebar templates look like regular HTML with embedded handlebar expressions. So the code is easy to understand, learn and use. It also allows you to write your code in the fashion of block expression.

CSS3 Buttonize Framework, as the name suggests,  is CSS based framework for generating buttons. It is lightweight, simple and quick. No matter what style you want, Buttonize Framework can generate small, big, fat, chunky, sober, cheesy, smart, rounded, showy, and good looking CSS buttons in no time.

cdnJS is a community moderated repository of open source scripts. The repository is managed in a peer reviewed fashion to ensure that only the highest quality libraries vetted by the community get added to cdnjs.com. The entire code base on cdnJS is open source and free for professionals, students and amateurs.

How do you display your PowerPoint presentations online? Google Docs, Slide Share… and other tools that let you convert your PowerPoint documents with basic slideshow and animation features? They are quite smart but what do you do to keep your online and offline documents synchronized or what do you do when you want to make instant online changes. Wont it be good if you were able to convert simple HTML slides into decent online presentations without requiring any third-party tools?

Imagine editing and maintaining your online presentations just as you manage HTML pages. This is now possible with Fathom.js which is a simple and open source library to create and manage your online presentations. You content is held in HTML, style and formatting in CSS and slideshow is powered by JavaScript. Fathom.js supports mouse, keyboard and scroll bar navigation built in and provides a simple API for creating your own custom interfaces.

Echoprint is an open source music identification system that allows anyone to build music fingerprinting into their application.

It listens to music signals and tells you what song is playing. It’s backed by a huge database of music that grows with the community and further partnerships.

Get most out of search box on your website by adding auto-complete faceted search queries. VisualSearch.js does it easily for your website by enhancing ordinary search boxes with the ability to autocomplete faceted search queries.

Specify the facets for completion, along with the complete-able values for any facet. You can retrieve the search query as a structured object, so you don’t have to parse the query string yourself.

VisualSearch.js is an open-source component of DocumentCloud.

HTML5 introduces the audio element which offers a way to play audio natively in the browser. However the native controls are a little lacking in style. Thankfully HTML5 also brings Media Element API to interact with which allows us to skin an Audio object however we want.

Using Boombox.js, users can create browser based audio players on top of HTML5 audio and jQuery.

This HTML5 library creates high quality HTML5 audio boombox that can be easily skinned and extended.

Today, the Internet is all about content – rather diverse and powerful content distributed in many different formats and platforms: traditional content on websites and blogs, marketing and advertising content on social media, and much more on mobile and tablets. Content providers are not aggressively experimenting with distributing content is non-traditional ways such as videos pod casts etc. This is what Videola is all about –  distributing video content.

You do not have to be Netflix, Hulu or Blockbuster/Amazon or YouTube to host and distribute content. You can host training videos or tutorials of your products, you can set up your own channel, you can archive and distribute useful video resources, you can build a knowledgebase for your customers and you can do a lot more with this free and open source IPTV software.