Head-to-Head: Emotion vs Semantic UI Analysis


v11.11.2(10 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 5Monthly npm downloads

@emotion/css is a popular CSS-in-JS library that allows you to style your components using JavaScript. It provides a powerful and flexible way to manage styles by generating unique class names for each style definition, ensuring style encapsulation and avoiding global namespace pollution. @emotion/css supports features like nested selectors, media queries, and theming, making it easy to create dynamic and responsive styles.


Tags: css-in-jsstylingreactencapsulationperformance


v2.5.0(over 1 year ago)

This package was last published over a year ago. It may not be actively maintained.Types definitions are provided via a separate npm package: @types/semantic-uiNumber of direct dependencies: 33Monthly npm downloads

Semantic UI is a modern front-end development framework that provides a sleek and intuitive way to create responsive and visually appealing user interfaces. It offers a wide range of UI components, such as buttons, forms, grids, and modals, with a focus on clean and semantic HTML. Semantic UI's theming capabilities allow for easy customization and branding to match your design requirements.


Tags: front-endUI frameworkresponsive designCSS frameworktheming



Both @emotion/css and Semantic UI are popular npm packages in the JavaScript community. However, Semantic UI has been around for longer and has a larger user base and community support.

CSS-in-JS vs CSS Framework

@emotion/css is a CSS-in-JS library that allows you to write CSS styles directly in your JavaScript code. It provides a more dynamic and flexible approach to styling components. Semantic UI, on the other hand, is a CSS framework that provides pre-defined CSS classes and components for building user interfaces. It offers a more opinionated and consistent styling solution.


@emotion/css allows for highly customizable styling as you have full control over the CSS properties and can use JavaScript logic to dynamically generate styles. Semantic UI, on the other hand, provides a set of predefined styles and components that can be customized to some extent, but it may require more effort to achieve highly customized designs.

Component Library

Semantic UI is not just a CSS framework but also a comprehensive component library. It provides a wide range of pre-built UI components like buttons, forms, modals, etc., which can be easily used in your project. @emotion/css, being a CSS-in-JS library, does not provide pre-built components but focuses more on providing a powerful styling solution for your custom components.


Both @emotion/css and Semantic UI can be integrated into different JavaScript frameworks like React, Vue, or Angular. However, Semantic UI has better integration with React and provides React-specific components and hooks for easier usage within React applications.

Learning Curve

Using @emotion/css requires understanding the concepts of CSS-in-JS and may have a steeper learning curve for developers who are not familiar with this approach. Semantic UI, on the other hand, has a more straightforward learning curve as it provides pre-defined classes and components that can be easily used.

Community Support

Both @emotion/css and Semantic UI have active communities and provide documentation and support. However, Semantic UI, being an older and more established library, has a larger community and more resources available, including tutorials, examples, and community-driven plugins.