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ProtoShare is a web-based, collaborative wireframing and prototyping tool. It hosts a WYSIWYG drag-and-drop interface, as well as advanced components users can customize. ProtoShare is not a Flash tool; it uses HTML, CSS, and Javascript. Web developers around the world, Fortune 500 companies, and leading interactive agencies use ProtoShare's collaborative prototyping to deliver better website and mobile experiences in less time. No software required.