A quick, simple, and cross-platform Gui development program that is free and open-source is called Pencil.
For drawing various user interface types, from desktop to mobile platforms, Pencil offers a variety of built-in shapes collection. Pencil ships with pre-installed Android and ios Ui cutouts as of version 2.0.2. This simplifies the installment process for beginning app prototyping. Additionally included in the list of built-in collections are general-purpose shapes, flowchart elements, desktop / web user interface( Ui ) and Android and ios Gui shapes.
Additionally, the community has produced a large number of similar collections that are accessible for free online.
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Additionally, Png and Html export styles can be supported by Pencil. You can even specify relationships and behaviors when exporting to Html, enabling you to” walk” people through the Ui template using functional buttons! This makes modeling a user interface’s’s move noticeably simpler.
Additionally, Pencil supports exporting documents in well-liked formats like Adobe Pdf, Inkscape Svg, and Openoffice / Libreoffice text documents.
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