Vossier - Fortnightly UI design briefs, straight to your inbox.
FlowMapp - FlowMapp is a UX planning tool for creating visual sitemaps and user flow.
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A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.
Create Brief - Create a free shareable design brief. No email needed.
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.