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Duo is a dual-paned web browser that lets you browse the web in two views: your standard ‘desktop’ view as well as a typical ‘mobile’ view. By seeing these two views at the same time, you’re able to quickly test and work through multiple screen experiences rather than considering them separately.

Whether you’re a designer or a developer, project manager or client, Duo gives you a new tool to make your Responsive Web Design project go more smoothly than ever.

Get the bookmarklet: http://helloduo.com


What's New

Version 1.3:
  • LiveReload support


  • OS X 10.8 or later

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Current Version (1.x)


Downloads 348
Version Downloads 117
License Commercial
Date 29 Jul 2014
Platform Intel 64 / OS X
Price $4.99
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Save 91% The Fall Bundle 11 Awesome Apps • 1 Low Price