Duo is a dual-paned web browser built for Responsive Web Design (RWD) 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 ? MOBILE VIEW Duo gives you an adjustable mobile view using the left pane. ? TABLET / DESKTOP VIEW The right pane defaults to an adjustable tablet / desktop view. ? SYNCHRONIZED BROWSING Navigating in either pane updates the other. No need to reload layouts to view pages at different sizes. ? WEBKIT DEV TOOLS INCLUDED Duo has everything you need to make sure your design is doing what it should. Debug code in either pane. ? CONVENIENT KEY COMMANDS Duo includes tools for clearing your cache and getting rid of those pesky cookies via standard key commands. ? LiveReload SUPPORT Duo now includes support for LiveReload. ? HANDY BOOKMARKLET Use the convenient bookmarklet in your other browsers to push a site over to Duo. Get the bookmarklet: http://helloduo.com ______________ WHAT IT ISN'T Duo is designed for Responsive Web Design, not for user-agent sniffing. Duo also only refreshes both views for GET requests. It's probably not a good fit for your POST refresh heavy project, although we are actively looking at ways to accommodate this. LET US KNOW YOUR THOUGHTS You can email help@helloduo.com for support, or reach out to us on Twitter: @electricpulp. Thanks!