Frame0

The early stages of product design should be fast, low-pressure, and focused on ideas — not polished pixels. Frame0 is a sketch application built for effortlessly creating hand-drawn wireframes and interactive prototypes that signal "this is a concept, not a final design." Its relaxed hand-drawn aesthetic encourages rapid ideation and honest feedback from stakeholders. Frame0 offers a comprehensive library of UI components for desktop, mobile, smartwatch, and web; over 1,500 sketch-style icons; and AI integration to generate wireframes from prompts or export code from your designs. Build seamless user flows, present as slideshows, export to HTML and PDF, and collaborate across Windows, macOS, and Linux — all with a tool that makes the messy early stages of design feel genuinely enjoyable.