Google Web Designer is a free professional-quality design tool that empowers creative professionals to develop cutting-edge HTML5 content that can run on any device. As an added benefit to ad designers, Google Web Designer is seamlessly integrated with DoubleClick Studio and Mobile Apps Reserve, greatly simplifying the process of building HTML5 creative that can be served through Google platforms.

Everything that is created on this software is accessible on any screen – desktop, tablet or mobile – without compatibility issues. It auto generate HTML5 and CSS3 for you. All the code behind your designs is hand-editable, so you’re never locked out of your own work. Your ideas are now amplified by code – not restricted by it. Google Web Designer’s Code view lets you create CSS, JavaScript, and XML files, using syntax highlighting and code autocompletion to make your code easier to write, with fewer errors.

It is available only on the Windows and Mac Platform.

Google Web Designer features:

• Two animation modes
• Full 3D authoring environment
• Design view and code view
• Illustration tools
• Easy ad workflow

Links:
Google Web Designer
Community Forum
Help Center
Google+ Page