Head-to-Head: JSS vs Tachyons Analysis


v10.10.0(8 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 4Monthly npm downloads

JSS is a powerful and flexible JavaScript library for styling your applications. It provides a way to write CSS styles in JavaScript, allowing you to create dynamic and reusable stylesheets. With JSS, you can define styles as JavaScript objects or use CSS syntax with the help of a CSS-in-JS compiler.

Alternatives: styled-components, emotion, aphrodite

Tags: javascriptstylingcss-in-jsdynamic-stylescomponent-styling


v4.12.0(over 3 years ago)

This package was last published over a year ago. It may not be actively maintained.The package doesn't have any types definitionsNumber of direct dependencies: 0Monthly npm downloads

Tachyons is a functional CSS framework that enables rapid and consistent development of responsive user interfaces in an efficient and maintainable way. It is built around the concept of atomic design, providing a library of small, single-purpose classes that can be easily composed to build complex components.

Alternatives: Bootstrap, Foundation, Bulma

Tags: cssframeworkresponsive-designatomic-designfast-loading-time



Both JSS and Tachyons have gained popularity in the JavaScript community, although they have different use cases and target audiences. JSS is more widely adopted in the React ecosystem, particularly with frameworks like Material-UI, while Tachyons has a strong following among developers who prefer a functional CSS approach.

CSS-in-JS vs. Functional CSS

JSS is a CSS-in-JS solution that allows you to write component-scoped styles directly in JavaScript. It provides a more dynamic and flexible approach to styling, especially when working with complex UI components. On the other hand, Tachyons is a functional CSS library that promotes a highly reusable and composable approach to styling. It provides pre-defined utility classes that you can apply to your HTML elements.

Developer Experience

JSS provides a rich and intuitive API that integrates well with React. It supports nesting, theming, and various plugins to enhance its functionality. It also has good TypeScript support and is well-documented. Tachyons, on the other hand, offers a simple and lightweight approach to styling. It focuses on providing a set of predefined utility classes that can be combined to create custom styles. Tachyons is easy to learn and has a minimal setup, making it suitable for quick prototyping and small projects.


JSS generates unique class names for each styling rule, which can result in larger CSS files compared to Tachyons' functional CSS approach. However, JSS leverages optimizations like dynamic style injection and server-side rendering support, which can help improve performance in certain scenarios. Tachyons promotes a smaller CSS footprint by using functional utility classes, which can lead to better performance for smaller projects or scenarios where file size is a concern.


JSS provides flexibility in terms of customizing individual components and adapting to different themes. It allows for easy composition of styles, dynamic styling based on props, and programmatic control over styles at runtime. Tachyons, on the other hand, is more opinionated and promotes consistency through its predefined utility classes. Customizing styles in Tachyons typically involves creating new utility classes or extending existing ones.

Community and Ecosystem

Both JSS and Tachyons have active communities and ecosystems. JSS has a stronger presence within the React ecosystem, with support and integration from popular libraries like Material-UI. Tachyons has its own community and a large collection of open-source projects and examples that showcase its usage. It also has integrations with different frameworks and libraries, although it is less tightly coupled with a specific ecosystem compared to JSS.