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One Click Test - Tool for quickly testing your design layout in one click.
Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
Dimensions Toolkit - Chrome Extension for designers to test responsive websites.
PowerMapper - Create visual HTML site maps and XML sitemaps for search engines of any web site quickly and easily.
AMP Templates - Beautiful, responsive AMP templates. Builder included.
FlowMapp - FlowMapp is a UX planning tool for creating visual sitemaps and user flow.