What is the difference between Sass, SCSS, and Less?

SCSS, Sass, and Less are three popular CSS preprocessors that extend the capabilities of CSS and make it easier to write and maintain stylesheets. While they share similar goals, there are some differences between them:

  • Sass (Syntactically Awesome Stylesheets): Sass was the first preprocessor to gain popularity. It introduces a new syntax with significant whitespace and uses the `.sass` file extension. It doesn't require semicolons or curly braces, relying instead on indentation and nesting to define the structure of the code.
  • SCSS (Sassy CSS): SCSS is an extension of Sass that uses a more familiar CSS syntax. It introduces the use of curly braces and semicolons, making it easier for developers familiar with CSS to transition to SCSS. SCSS files use the `.scss` file extension.
  • Less: Less (Leaner CSS) is another popular preprocessor that shares similarities with Sass and SCSS. It uses a CSS-like syntax with the addition of variables, mixins, and nesting. Unlike Sass and SCSS, Less requires a JavaScript runtime to compile to CSS.

Key differences:

  • Syntax: Sass has its unique syntax with significant whitespace, while SCSS and Less use a syntax closer to traditional CSS.
  • Compatibility: SCSS is widely supported and can be used in any modern CSS environment. Sass and Less may require additional tools or compilers.
  • Community and Ecosystem: SCSS has a larger community and a more extensive ecosystem of libraries, frameworks, and tools. Sass and Less also have active communities but are not as widely used as SCSS.

Ultimately, the choice between SCSS, Sass, or Less depends on personal preference, project requirements, and the existing tooling and ecosystem. It's worth noting that SCSS has become the de facto standard for CSS preprocessing due to its familiarity and widespread adoption.

The text in this article was mostly generated by ChatGPT, an AI language model developed by OpenAI. We use the AI tool to notate some specific terminology used within the context of our website.