Head-to-Head: Bootstrap vs Fela Analysis


v5.3.2(3 months ago)

This package is actively maintained.Types definitions are provided via a separate npm package: @types/bootstrapNumber of direct dependencies: 0Monthly npm downloads

Bootstrap is a popular front-end framework used to quickly design and develop responsive web pages and user interfaces. It provides a consistent set of styles, components, and Javascript plugins that simplify the process of developing websites and applications. Bootstrap is known for its simple and intuitive class-based grid system which makes aligning and positioning elements on a page easy. It also includes a huge library of pre-built components like navigation bars, forms, and buttons that can be customized with your own styles and colors.

Alternatives: foundation, bulma, materialize

Tags: front-endframeworkresponsivecomponentsgrid-system


v12.2.1(about 1 year ago)

This package was last published over a year ago. It may not be actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 5Monthly npm downloads

Fela is a powerful and flexible CSS-in-JS library for building scalable and maintainable user interfaces. It allows you to write your styles in JavaScript using a functional approach, providing a declarative and composable way to define styles for your components. Fela offers a wide range of features including dynamic styling, theming, media queries, and CSS animations.

Alternatives: styled-components, emotion, aphrodite

Tags: javascriptcss-in-jsstylinguser-interfaceperformance



Bootstrap is a widely popular front-end framework with a large community and extensive usage across many projects. Fela, on the other hand, is a more specialized styling library that is less popular but has a dedicated following in the React ecosystem.

Scope and Purpose

Bootstrap is a comprehensive CSS framework that provides a wide range of pre-styled components and utility classes for building responsive web applications. Fela, on the other hand, is a highly customizable, high-performance styling library for React that focuses on creating dynamic and scalable styles.

CSS-in-JS vs CSS Framework

Bootstrap relies on traditional CSS and HTML classes, while Fela is a CSS-in-JS library. This means that with Fela, styles are generated dynamically at runtime and can be composed and manipulated using JavaScript. This provides more flexibility and easier styling management, especially in large and complex applications.

Customization and Theming

Bootstrap provides a wide range of default styles and themes, with some degree of customization available through modifying CSS variables and overriding classes. Fela, on the other hand, offers extensive customization capabilities, allowing for full control over the styles at a granular level and easy theming support.


Fela is known for its performance optimizations, as it uses a unique styling approach that generates minimal CSS and provides atomic rendering. This can result in smaller bundle sizes and better runtime performance compared to traditional CSS frameworks like Bootstrap. However, Bootstrap's performance is also optimized and generally performs well in most scenarios.

Learning Curve

Bootstrap offers a straightforward and easy-to-understand API that can be quickly learned by developers, especially those familiar with HTML and CSS. Fela, being a CSS-in-JS library, has a steeper learning curve as it requires understanding the principles of CSS-in-JS and its specific syntax. However, once mastered, Fela provides greater control and flexibility over styles.