Head-to-Head: Bootstrap vs Fela Analysis


v5.3.3(4 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 for building responsive and mobile-first websites and web applications. It provides a collection of CSS and JavaScript components, such as grids, buttons, forms, and navigation bars, that help developers create visually appealing and consistent designs. Bootstrap's grid system allows for easy layout customization and ensures compatibility across different devices and screen sizes.


Tags: cssjavascriptfront-endresponsive-designframework


v12.2.1(over 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 high-performance, framework-agnostic styling library for React and other JavaScript frameworks. It follows a functional and atomic CSS approach, allowing you to create dynamic and responsive styles using JavaScript objects. Fela's unique feature is its ability to generate atomic CSS classes on the fly, resulting in smaller CSS bundles and improved performance.


Tags: javascriptstylingreactatomic-cssperformance



Bootstrap is one of the most popular front-end frameworks and has a large and active community. It is widely used in web development projects. Fela, on the other hand, is a lesser-known library that focuses on providing a highly efficient and scalable styling solution for React applications.

Styling Approach

Bootstrap provides a pre-defined set of CSS styles and components that can be easily applied to build responsive and visually appealing UIs. It follows a more traditional CSS-based styling approach. Fela, on the other hand, is a CSS-in-JS library that allows you to write styles using JavaScript. It provides a more dynamic and flexible approach to styling, with the ability to generate styles dynamically based on props and state.


Bootstrap offers a wide range of customization options, allowing you to modify the default styles and components to match your project's design requirements. It provides a robust theming system and allows you to override styles using CSS classes. Fela, on the other hand, provides a highly customizable styling solution. You can define your own style rules using JavaScript and have full control over the generated CSS. This makes it easier to create unique and tailored styles for your application.

Integration with React

Both Bootstrap and Fela can be used with React applications. Bootstrap provides a set of React components that encapsulate the Bootstrap styles and functionality. It offers a seamless integration experience with React. Fela, being a CSS-in-JS library, integrates well with React and allows you to define styles directly within your React components. It provides a higher level of component encapsulation and allows for more granular control over styles.


Bootstrap, being a comprehensive front-end framework, comes with a larger file size and may impact the performance of your application. Fela, on the other hand, focuses on performance optimization and provides a highly efficient styling solution. It generates minimal and optimized CSS at runtime, resulting in faster rendering and smaller bundle sizes.

Learning Curve

Bootstrap has a relatively low learning curve, especially if you are familiar with CSS and HTML. It provides extensive documentation and a wide range of resources to help you get started quickly. Fela, being a CSS-in-JS library, may have a steeper learning curve, especially if you are new to the concept of writing styles in JavaScript. However, it offers powerful features and flexibility once you become familiar with its API.