⚡ User Interface Frameworks in Bulgaria

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

Bulgaria is a Southeastern European country with a population of around 6.5 million people.

According to our research, user interface frameworks are used on 41.3% of websites from Bulgaria.

Statistics based on 13K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is Bootstrap with a substantial share of 68.2%, followed by jQuery UI with 38.9% and Tailwind CSS with 3.4%.

🚀 Highlights

Here is a list of the top frameworks that are more popular in Bulgaria 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 30 UI frameworks used on sites from Bulgaria, 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
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
6
UIKit
Hamburg, Germany

A lightweight and modular front-end framework.

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
MDB
Warsaw, Poland

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

FreeOpen source€29+
10
Materialize
Pittsburgh, Pennsylvania, United States

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

FreeOpen source
11
Material UI
Paris, France

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

FreeOpen source$180+/developer/year
12
Angular Material
Mountain View, California, United States

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

FreeOpen source
13
Pure CSS
New York, United States

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

FreeOpen source
14
Semantic UI
New York, United States

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

FreeOpen source
15
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
16
Ant Design
Hangzhou, China

An enterprise-level design system and React-based UI component library developed by Alibaba that provides a standardized design language for building consistent interfaces.

FreeOpen source
17
Material Design Lite
Mountain View, California, United States

A legacy user interface framework that implements Material Design components using plain CSS, JavaScript, and HTML without external dependencies.

FreeOpen sourceLegacy
18
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
19
W3.CSS
Sandnes, Norway

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

FreeOpen source
20
Headless UI
Kitchener, Ontario, Canada

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

FreeOpen source
21
Chakra UI
Manchester, United Kingdom

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

FreeOpen source
22
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
23
Mantine

An open-source React component library that includes over 100 customizable components.

FreeOpen source
24
Radzen Blazor
Sofia, Bulgaria

An open-source UI component library for the Blazor framework that provides native C# components with full theming support for both Material Design and Fluent design systems.

FreeOpen source
25
YAML Framework
Berlin, Germany

A modular and lightweight CSS framework for flexible, accessible and responsive websites.

FreeOpen source

👉 See Also

🗃️ About This Data