Prototyping Software

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  Pencil ProjectDarmowy

  A free and open-source GUI prototyping tool.

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  Adobe XDWypróbuj za darmo

  Create and share designs for websites, mobile apps, and other user experiences.

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  WireframeSketcherWypróbuj za darmo
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  Mockuuups StudioWypróbuj za darmo

  Drag-and-drop tool for creating beautiful app previews or any marketing materials.