Clearly: What is the difference between UX and UI design?

Blog Tips and Advice Creatives Marketing
26. 05. 2026
Ivana Chatrná

Are you looking for a new website? Then you have probably come across the terms UX and UI design. Both items are often an integral part of a web development offer. Although they have very similar names, there is a significant difference between UX and UI. In this article, we will explain in detail what outputs you will receive within UX and UI design. We will also add why both disciplines are important for the successful completion of your project. Finally, we will clearly demonstrate everything with practical examples.


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Why is design drafting like building a house?

Imagine you are building a house. To ensure that the final product doesn't collapse on you and that you live comfortably in it, it's necessary to follow a certain sequence of tasks during construction. The same applies to creating a new website.

UX design as a rough construction

First comes UX design. In construction terminology, you can think of it as rough construction. It tells us how big the house will be, how many rooms it will have, how the rooms will be arranged, or where the hallways will lead.

The architect bases the design on information about who will live in the house, how they will use it, or why they want to build it at all. We can probably agree that the character of the house will be different if a family of five with two dogs moves in, or if a retired couple buys it.

Both houses may have the same number of rooms, yet they will likely be quite different. In the first case, a large portion of the space will be taken up by children's rooms and a generous living room that accommodates the whole family, while in the second case, the stars of the project will be two bedrooms for greater comfort, a spacious pantry behind the kitchen, and perhaps even a smaller workshop.

It's the same with websites. You can have two comparably robust websites, but they will end up being different. Why? Each will target a different type of user and have different goals. One focuses on selling children's clothing to mothers on maternity leave, while the other aims to gather inquiries from IT directors of companies.

Therefore, the UX designer asks the same questions as the architect. They are interested in why the website is being created, what plans the client has for it (does the client want to sell children's clothing worth a million crowns every month, or obtain a hundred inquiries from the form?), who will use the website, and what needs these people have. Once they gather enough information, they begin to design the structure of the website (just as the architect starts working on the floor plan).

What does the designer think about during this process? That visitors can easily navigate the website, always find what they are looking for (you wouldn’t search for a bathtub in the kitchen, that’s common sense) and do everything you want them to do (order a product, send an inquiry, or perhaps subscribe to a newsletter).

If the website is designed so that visitors feel good on it, generates conversions, and meets set goals, then you have succeeded. You have a website that is a pleasure to use (and a house that is comfortable to live in). Or is that not entirely true?

UI design as a facade

B is correct. You have the foundation of a house. Theoretically, one could start living in it – but most of us want it to not only function, but also look nice. And that’s why we have UI design. It serves as the final touch-up of the house. At the same time, it often has the biggest wow effect. It determines the color of the facade, roofing, windows, and doors. It selects the tiles, floor style, and interior paint. It decides what types of pictures will hang on the walls and whether the rooms will suit a monstera or rather a ficus.

For websites, it’s a stylish coat that designers dress the initial skeleton of the website (the so-called wireframe). Color schemes, fonts, photos, visualizations, videos, the appearance of components and buttons are addressed, as well as whether the website is accessible to everyone without exception and adheres to the visual identity rules of your brand. 

Enough talk about houses, let's break down the concepts of UX and UI in more detail.

What is UX design (User Experience)?

UX design focuses on how users feel and how they interact with the designed product. The goal is to prepare everything so that the product meets users' expectations and their journey while using the product is logical, easy, understandable, and free of unnecessary obstacles.

At first glance, UX design is not visible, but it forms the foundation of all designs. It does not only pertain to website creation – designers address user experience across various types of products.

For our purposes, we focus primarily on digital platforms – websites, e-shops, online portals, or applications. 

What a UX designer does

  • Analyzes and defines (target groups, user needs and concerns, vision and goals of the website).
  • Designs the structure of the entire website (sitemap) with regard to user goals and the layout of individual pages.
  • Creates the initial – wireframe of the website.
  • Refines the layout of elements and content.
  • Tests the proposed solutions and optimizes them.

The result is a clear structure of the website and wireframe that meets user needs and aligns with the client's plans for the website – or what they expect from it (read, why it is important to set goals clearly at the beginning of the project).


Why UX design is important

Good UX brings:

  • easy navigation on the website,
  • simple usage,
  • higher conversions,
  • more satisfied customers.

We are not exaggerating when we tell clients that without quality UX, even beautiful design can be unusable. It should not be underestimated, truly. 

What is UI design (User Interface)?

UI design means the appearance and style of the interface. It includes visual elements such as colors, typography, buttons, icons, or illustrations. In simple terms, it is about how the product looks and how it is visually presented to users.

It should correspond with the (visual) identity of the brand – so that users can easily associate the website with other brand outputs, remember it more easily, and have trust in it. Does your brand not yet have a defined identity? We can help with that.

UI design is visible at first glance. Unlike UX, it only pertains to websites and applications. 

What a UI designer does

  • Selects colors and fonts.
  • Designs the appearance of components and buttons.
  • Ensures compliance with visual identity.
  • Monitors accessibility – adjusts color contrasts, font sizes, and adapts design for display on various devices.


Why UI design is important

With quality UI:

  • the product appears professional,
  • the user navigates more easily,
  • a good first impression is created.

UI simply contributes to the user's desire to use the designed product. And the website (or other platform) fits into the overall visual presentation of the brand.

UX vs UI: What is the main difference between them?

Are you looking for a quick comparison of UX vs. UI?

  • UX addresses functionality and logic – it creates the structure of the product.
  • UI focuses on appearance and style – it wraps the product in a nice coat.


Both disciplines are closely related. UX defines how the product should work, while UI gives it a visual form. Together, they create a strong duo that is essential for the successful implementation of any web project. 

Examples of UX and UI in Practice

UX and UI design together create web design. Over more than twenty years of the agency's operation, we have created hundreds for clients.

What does design look like in the UX phase and in the UI phase? Let's illustrate this with a specific example.


This is what the wireframe of the website (UX design) for the client Agrotec looked like.

What to focus on: page structure, element layout, conversion path, call to action.


And this is the same website after it received a visually appealing coat (UI design). 

What to focus on: color selection, font, photos, button color, font sizes.


Do you need a new design?

Your website has been running for a while, and you are wondering if it is worth investing in a redesign?  A website audit can help you – during this process, we will evaluate the current state and recommend improvements to ensure the website is functional, users can easily navigate it, and you achieve your set goals.

We also design entirely new websites. If you are just starting out and do not yet have a firmly established visual identity for your brand that we could base the UI design on, we can start with that first.


Just write or call and we will discuss the options.