Difference between sass and less

There are 2 CSS preprocessors to choose from:

They both have been around for several years.



Sass is the most mature, stable, and powerful professional grade CSS extension language in the world. Sass is completely compatible with all versions of CSS. We take this compatibility seriously, so that you can seamlessly use any available CSS libraries.There are an endless number of frameworks built with Sass. CompassBourbon, and Susy just to name a few.Sass is actively supported and developed by a consortium of several tech companies and hundreds of developers.

Sass has 2 syntaxes available:

  • Sass itself (Syntactically Awesome StyleSheets) in .sass files
  • SCSS (Sassy CSS) in .scss files, which is something halfway between regular CSS and Sas



Less (which stands for Leaner Style Sheets) is a backwards-compatible language extension for CSS. Less comes with a less.js file which is really easy to deploy in your website. Create a stylesheet with .less extension and link it in your document using the rel="stylesheet/less" attribute.Unlike regular CSS as we know it, LESS works much more like a programming language. It’s dynamic, so expect to find some terminologies like VariablesOperation and Scope along the way.



Difference Sass VS Less

    1. Sass Is in Ruby While LESS Is in Javascript
    2. To Assign Variables Sass Uses ‘$’ While LESS Uses ‘@’

    3. Sass Has Compass While LESS Has Preboot

    4. LESS Has Better Error Messages Than Sass

    5. LESS Has More User-Friendly Documentation Than Sass


Syntactically Awesome Stylesheets (Sass) and Leaner CSS (LESS) are both CSS preprocessors. They are special stylesheet extensions that make designing easier and more efficient. Both Sass and LESS compile into CSS stylesheets so that browsers can read them, which is a necessary step because modern browsers cannot read .sass or .less file types.

If you plan on being in the world of web development, it’s a good idea to be well-versed in one of the two preprocessors—or both.




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