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UI Kits within the scope of the website and the mobile user application design is a set of design elements such as: button, navigation bar, field box, drop-down, check box, radio button, column layouts, icon, and so forth, which is usually in a layered PSD format (Adobe Photoshop) . UI Kits became prime ammunition for a User Interface Designer to work on a project both website and mobile application. UI Kits can save time and give a fresh reference to the projects. Here is a collection of 30 cool UI Kits, and of course, free to use for your personal or commercial projects.
BlackUI v1 — Free PSD Source
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Super Clean UI Kit (with free PSD download)
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Freebie
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Dark Chart UI Kit
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Ui Kit
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"Pizza" UI Kit - PSD
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Dark UI full. PSD freebie
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Caramel UI – Free User Interface Kit
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Dark web and Apps UI Kit
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Dark UI – Free User Interface Kit
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The Ultimate Wireframe UI Kit
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PrimeUI - Vol 1
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Coffee iPhone Retina App Controls
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Free Dark UI Kit
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Noire UI Elements
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Dark Admin Panel UI Kit
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Smooth Web App UI Kit
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Transparent UI Kit
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Butterscotch UI Kit
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Hanna UI Kit
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Cream UI Pack
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Poky UI Kit
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Cloudy UI Kit
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Flat UI Free – PSD&HTML User Interface Kit
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Square UI Free – User Interface Kit
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Polaris UI Free – User Interface Pack
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The Bricks – User Interface Framework
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Pandora UI Free for iOS – User Interface Pack
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Futurico UI Free – User Interface Elements Pack
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Impressionist UI Free – User Interface Pack
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