A clean, professional and first HTML5 audio, video and image gallery based on jMediaElement which is an HTML5 audio and video development kit with Flash and VLC Fallback.

Multimedia Gallery integrates audio and video as exhibit pieces along images. It uses an XML file for defining the items in the gallery and a PHP class with an XSL Stylesheet to transform the data. Once a thumbnail is clicked, it navigates through the previews and shows the descriptions (from the configuration XML file).

MyClientBase is a simple, intuitive, free and open source web based invoice management software developed specially for freelancers. Highly customizable options and features provide a powerful invoicing solution.

This invoice management software is written in PHP, on top of the excellent CodeIgniter framework. Built-in modularity gives developers a pathway to write custom modules.

It comes with a many comprehensive features including an informative dashboard, invoice management, client management & tax rate management modules.

ComparePSD is a must-have tool for Photoshop professionals, it compares two Photoshop PSD files and highlights the differences layer by layer and effect by effect.

Features

• Compares PSD files layer-by-layer
• Handles layers styles (effects), styles attributes and layers visibility flags
• Provides a scaled view of the files that helps you to find differences easier
• Allows you to select the files in Windows Explorer by right-clicking on them

If you’re building a multilingual website or application, you probably use language files. When you change content in one language file, you need to remember to update the other language files. Even with source control, this can get messy pretty quickly if you have many languages, many translators or a large site.

String was built to keep things organized. It can manage your language files – from PHP to PO to Rails to iPhone applications. You can now easily add languages and sections to your site. You can also invite users and control permissions.

String is free, with no project limitations. Invite as many users as you like. You’re free to extract all your data, close your project at any time and you can easily import and export projects.

Plaud.it is a free website stat & rank monitoring tool which provides multiple stats in one place and can play a vital role in the marketing strategy development.

It allows you to monitor multiple sites and check for stats such as Pagerank, Alexa Rank, Feedburner Subscribers and Twitter followers, etc.

Recommended:   10+ Website Speed & Performance Testing Tools & Plugins

Tileables Pattern Pack is a free resource for Photoshop pattern files. The pack contains 100% Tileable Seamless Patterns.

It includes 12 solid, dashed & dotted seamless line patterns in various orientations. It comes with PAT pattern files which can be imported into Photoshop. You also get the layered PSD file so you can edit each pattern to your liking.

Superfun creates a Lightbox gallery with HTML5 Canvas element and CSS3. It allows for AJAX injection, SWF content, iFrame content, and utilizes the new CSS3 transform property to mimick a Flash environment, while completely avoiding Flash.

Though its not as powerful as we see around but consider this a first step and an HTML5, CSS3 experiment (successful experiment to me) with scale, rotation and transformation.

Google Browser Size is a visualization of browser window sizes for people who visit Google. For example, the “90%” contour means that 90% of people visiting Google have their browser window open to at least this size or larger.

This is useful for ensuring that important parts of a page’s user interface are visible by a wide audience. And designers can use this tool to get better insights and user experiences for their websites and applications.

In the above example image, there is a donate now button which falls within the 80% contour, meaning that 20% of users cannot see this button when they first visit the page. 20% is a significant number; knowing this fact would encourage the designer to move the button much higher in the page so it can be seen without scrolling.

A set of free high quality cool icons collection by GraphicRiver. The set contains 25 unique and specially designed icons that comes in three sizes: 16*16px, 32*32px, 48*48px.

Apple published a showcase to demonstrate Safari’s HTML5, CSS3 and Javascript capabilities. A set of nice HTML5 demos, worth checking out.

The demos show how the latest version of Apple’s Safari web browser, new Macs, and new Apple mobile devices all support the capabilities of HTML5, CSS3, and JavaScript. Not all browsers offer this support.

HTML5 demos include:

• Interactive Implementation of Web Typography
• Horizontal / Vertical Web Image Gallery
• Photo Transitions
• HTML5 Audio implementation
• 360 Product Views
• Sticky Notes
• Offline Calendar

Apple also hosted a Dev center for developers to learn how to create such effects and an excellent library of source codes that you can build, modify, and execute to explore how to accomplish specific tasks with Apple technologies.