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“User interface” is term a lot of us often see, especially when it comes to gadgets and devices. But does everyone knows what a user interface is?

When we talk about human-machine interaction, the user interface (UI) is the disk space where interactions between a user (human) and the machine take place. The purpose of this interaction is to make it possible for an efficient functionality and command of the unit from the human end, as the machine at the same time provides feedback data that helps the user’s process of decision-making.

The design of the UI is very important in producing a smooth and hassle-free use of a device. In general, the purpose of user interface design is to develop a UI that provides a self-explanatory, effective, and user-friendly operation in the manner that generates the user’s preferred result. This basically means that you just need to provide a small effort or input to attain your preferred output. This also means that the device reduces unwanted results to its users. An essential element of an excellent UI design is its assessment. After working on the creation and development of a user interface design, it has to be screened and calculated to determine the amount to which specifications for the UI have been accomplished.

A great and effective UI design contains all of these characteristics:

  • Clarity – The design is user-friendly, making sure that everything is clear and easy to understand.
  • Concise – The design is on point with regards to labeling categories that will be shown on the screen.
  • Sense of familiarity – It doesn’t matter if the user is a first-timer or not, a number of elements in the design must have a sense of familiarity on how it should be used.
  • Responsive – An effective UI design is never sluggish, which means the machine promptly sends feedback to its user about the status of the procedure selected.
  • Consistency – The design is better if it’s available in the trifecta of devices these days – a computer, a smartphone, and a tablet.
  • Visual appeal – A fantastic UI design isn’t just easy to use and effortless to use, but it should also be striking in terms of esthetics.
  • Forgiveness – a lenient design allows the unit to “forgive” users when incorrect commands and keys have been used.

All of these characters are shown in these 40 user interface kits. The best thing about them is that they can be downloaded for free.

Sally Blocks UI by PixelBuddha

Sally Blocks UI by PixelBuddha

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Coloro UI Kit Freebie by Darius Dan

Coloro UI Kit Freebie by Darius Dan

Download

Mobile UI Blueprint by Chrometaphore

Mobile UI Blueprint by Chrometaphore

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Ui Kit by Dominic L

Ui Kit by Dominic L

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Ui Kit by Alexander Ivanov

Ui Kit by Alexander Ivanov

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Eventray UI Kit by DtailStudio

Eventray UI Kit by DtailStudio

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Summer Ui Kit Free by Sergey Azovskiy

Summer Ui Kit Free by Sergey Azovskiy

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Dark UI Kit by Huseyin Yilmaz

Dark UI Kit by Huseyin Yilmaz

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Ui Kit by Alex Vanderzon

Ui Kit by Alex Vanderzon

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Ui Kit by Pele Saeng-a-loon Chaengsavang

Ui Kit by Pele Saeng-a-loon Chaengsavang

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Neat UI Kit by Valentine Boyev

Neat UI Kit by Valentine Boyev

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Material Design UI Kit by Jakub Kosla

Material Design UI Kit freebie by Jakub Kosla

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Dark and Light Ui Kit by Mateusz Dembek

Dark and Light Ui Kit by Mateusz Dembek

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Publica UI Kit by Raul Taciu

Publica UI Kit by Raul Taciu

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Ui Kit by Sanadas Young

Ui Kit by Sanadas Young

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Alpha Ui Kit by Victor Barac

Alpha Ui Kit by Victor Barac

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Free PSD Sample by Sergey Azovskiy

Free PSD Sample by Sergey Azovskiy

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UI kit free PSD by Mathieu Berenguer

UI kit free PSD by Mathieu Berenguer

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Grey Elements by Simon Eramo

Grey Elements by simon eramo

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Soft Flat UI Kit by AlienValley

Soft Flat UI Kit by AlienValley

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Sticky Butterscotch UI Kit by Made By Thomas

Sticky Butterscotch UI Kit by Made By Thomas

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UI Kit by Jakub Kosewski

UI Kit by Jakub Kosewski

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Flat Ui Kit by Zachary VanDeHey

Flat Ui Kit by Zachary VanDeHey

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Photo Splash UI by Maximlian Hennebach

Photo Splash (Full iOS UI Kit) for Sketch by Maximlian Hennebach

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Chutzpah UI Design Kit by Morgan Allan Knutson

Chutzpah UI Design Kit by Morgan Allan Knutson

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Flat Design UI Components by Raul Taciu

Flat Design UI Components by Raul Taciu

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UI Kit Dark by Creativedash

UI Kit Dark by Creativedash

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Snug UI Kit

Snug UI Kit

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Flat UI Kit 2 by Riki Tanone

Flat UI Kit 2 by Riki Tanone

Download

Blaubarry UI kit by Mikael Eidenberg

Blaubarry Free UI kit 2 by Mikael Eidenberg

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Flatimus iOS Free UI Kit by a.k.a satys

Flatimus iOS Free UI Kit by a.k.a satys

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Minimal UI Kit by Vincent Tantardini

Minimal UI Kit by Vincent Tantardini

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Ui Kit by David Minty

Ui Kit by David Minty

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Lucky Store UI Free by PixelBuddha

Lucky Store UI Free by PixelBuddha

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Dashboard UI Kit by Vasjen Katro

Dashboard UI Kit by Vasjen Katro

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Flat UI KIT by Paul Flavius Nechita

Flat UI KIT by Paul Flavius Nechita

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Free UI Kit by Ramotion

Free UI Kit by Ramotion

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UI Kit by Unity

UI Kit by Unity

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Magico UI Kit by Dmitry Samarenkov

Magico UI Kit by Dmitry Samarenkov

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Posted by Igor Ovsyannykov

I'm a digital nomad and entrepreneur bouncing around South East Asia. When I'm not working here, I'm out taking photos for Fancycrave.com. Follow me on Instagram: @igorovsyannykov

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