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Sass

Syntactically Awesome Style Sheets

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Sass is a CSS extension language that adds programming constructs such as variables, nesting, and reusable modules on top of standard CSS. It has been actively supported since 2006 and is fully compatible with all versions of CSS, so existing CSS libraries can be used alongside it.

The project ships as Dart Sass (current release 1.105.1), with LibSass and Ruby Sass marked as discontinued. An implementation guide is available, and frameworks such as Bootstrap, Bourbon, and Susy are built with Sass. Development is carried out by a core team and a consortium of tech companies and developers.

Sass is aimed at developers and teams writing stylesheets who want the extra structure of a CSS extension while retaining compatibility with plain CSS. It is distributed as open-source software rather than a commercial product, with no paid editions, seats, or usage-based plans described.

5 alternatives to Sass

Ranked by how well each tool replaces Sass: shared features, audience, price and popularity.

  1. Bulma

    Modern CSS framework based on Flexbox.

    Covers 0 of 2 key features, has a free plan and is open source.

    Free planOpen source
    59 out of 100 matchContact sales

  2. CSSmatic

    Learn CSS and use free CSS generators with live preview

    Covers 0 of 2 key features and has a free plan.

    Free plan
    55 out of 100 matchFree

  3. Bootstrap

    Frontend toolkit providing prebuilt HTML, CSS, and JavaScript components for building and

    Covers 0 of 2 key features.

    54 out of 100 match—

  4. CSS Studio

    You and your agent, designing together.

    Covers 0 of 2 key features.

    52 out of 100 match—

  5. Style Master

    CSS Editor with WYSIWYG editing, Wizards and hand coding tools for Windows and Mac OS X

    Covers 0 of 2 key features.

    51 out of 100 match—