Fluid UI vs Pencil Project
A side-by-side look at Fluid UI and Pencil Project. For an in-depth review of either product, follow the links below.
Fluid UI
Development
Fluid UI is a user interface design and prototyping tool that allows designers and developers to quickly create interactive prototypes and high-fidelity visual designs for web and mobile apps. Its key features include a large component library, collaboration tools, animation builder, interactions editor, template library, and support for responsive design.
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Pencil Project
Development
Pencil Project is a free and open source GUI prototyping and mockup tool. It allows users to create wireframes and prototypes for software interfaces and websites quickly and easily, without programming knowledge.
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