⚡ User Interface Frameworks in Portugal

User Interface (UI) frameworks are libraries of code, design elements, and components that help web developers create user interfaces with consistent structure and behavior.

Portugal is a Southern European country with a population of around 10.3 million people.

According to our research, user interface frameworks are used on 54.1% of websites from Portugal.

Statistics based on 14K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top UI frameworks in Portugal in 2026, based on market share.

The most popular is Bootstrap with a substantial share of 64.6%, followed by jQuery UI with 41.2% and Tailwind CSS with 4.6%.

🚀 Highlights

Here is a list of the top frameworks that are more popular in Portugal than worldwide.
Differences between global and country rankings are shown in parentheses.

✨ Best UI Frameworks

Below is a more detailed list of the top 25 of the 36 UI frameworks used on sites from Portugal, ranked by their market share.

RankNameMarket share
1
Bootstrap
San Francisco, California, United States

An open-source framework for building responsive, mobile-first websites and web applications with HTML, CSS, and JavaScript, originally developed at Twitter.

FreeOpen source
2
jQuery UI
San Francisco, California, United States

A curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library.

FreeOpen source
3
Tailwind CSS
Kitchener, Ontario, Canada

An open-source utility-first framework that provides low-level CSS classes for building user interfaces directly in markup.

FreeOpen source$149+
4
Foundation
Campbell, California, United States

An open-source responsive framework that provides a customizable grid system, a library of UI components, HTML templates, and JavaScript plugins.

FreeOpen source
5
UIKit
Hamburg, Germany

A lightweight and modular front-end framework.

FreeOpen source
6
AMP
San Francisco, California, United States

An open-source HTML framework for creating lightweight pages that are optimized for mobile web browsing and load faster.

FreeOpen source
7
Spectre.css
Shanghai, China

A lightweight, responsive CSS framework designed for faster and extensible development.

FreeOpen source
8
Bulma
London, United Kingdom

An open-source modular CSS framework based on Flexbox.

FreeOpen source
9
Materialize
Pittsburgh, Pennsylvania, United States

A responsive CSS framework based on Google's Material Design guidelines.

FreeOpen source
10
Angular Material
Mountain View, California, United States

A library of UI components for Angular that implements Google's Material Design specification.

FreeOpen source
11
Radix UI
San Francisco, California, United States

An open-source component library that provides low-level, unstyled interface primitives for building accessible user interfaces and design systems in web applications.

FreeOpen source
12
W3.CSS
Sandnes, Norway

An open-source, pure CSS framework developed by the W3Schools team, designed for building responsive websites without JavaScript.

FreeOpen source
13
Material UI
Paris, France

An open-source React component library that implements Google's Material Design.

FreeOpen source$180+/developer/year
14
Kendo UI
Burlington, Massachusetts, United States

A commercial bundle of four JavaScript UI libraries built natively for jQuery, Angular, React, and Vue.js.

FreeOpen source$799+/year
15
Semantic UI
New York, United States

An open-source component framework that helps create responsive layouts using human-friendly CSS class names.

FreeOpen source
16
Headless UI
Kitchener, Ontario, Canada

Completely unstyled, fully accessible UI components, designed to integrate beautifully with Tailwind CSS.

FreeOpen source
17
Chakra UI
Manchester, United Kingdom

A comprehensive library of accessible, reusable, and composable React components.

FreeOpen source
18
Tachyons
Boise, Idaho, United States

A lightweight, functional CSS framework that enables the creation of fast, responsive, and accessible web interfaces without writing custom CSS.

FreeOpen source
19
MDB
Warsaw, Poland

A UI toolkit that combines Bootstrap with Google's Material Design guidelines.

FreeOpen source€29+
20
Shoelace

A framework-agnostic library of production-ready web user interface components built entirely with native Web Component standards, ensuring consistent design and behavior across any JavaScript framework or none at all.

FreeOpen source
21
Flat UI
New York, United States

A free design framework and theme for Bootstrap.

FreeOpen source
22
PrimeFaces
Ankara, Turkey

An open-source JavaServer Faces framework with over 100 components, a touch-optimized mobile kit, client-side validation, and a theme engine.

FreeOpen source$249+
23
Vuetify
Southlake, Texas, United States

An open-source, no design-skills-required UI library of beautifully handcrafted Vue.js components.

FreeOpen source
24
Pure CSS
New York, United States

A lightweight, responsive CSS framework developed by Yahoo for building fast and minimal web interfaces.

FreeOpen source
25
AngularJS Material
Mountain View, California, United States

An implementation of Google's Material Design Specification (2014-2017) for AngularJS developers.

FreeOpen sourceLegacy

👉 See Also

🗃️ About This Data