awesome-sass

Contributions welcome, please see

Official Sass and SCSS guide

Learn SASS in 15 minutes tutorial

Learn Sass with Codecademy

Learn how to use Sass, from beginner basics to advanced techniques, with online video tutorials taught by industry experts

Official Sass and SCSS Documentation Reference

SitePoint Sass and SCSS reference

What’s the difference between Sass and SCSS?

Which syntax is better?

What's the difference between SCSS and Sass?

Framework for building the foundation for a package based CSS workflow

Bootstrap 4

Bootstrap version 4, the most popular HTML, CSS, and JS framework for developing responsive, mobile first projects on the web

Bootstrap-sass

Official Sass port of Bootstrap 2 and 3

Bulma

Modern CSS framework based on Flexbox

Cirrus

A component and utility centric SCSS framework designed for rapid prototyping

Foundation for Sites

The most advanced responsive front-end framework in the world. Quickly create prototypes and production code for sites that work on any kind of device

Universal and lightweight stylesheet starter kit that focuses on base html elements and typography

Open source Sass-based OOCSS framework built for scale

Kickoff is a lightweight front-end framework for creating scalable, performant and responsive sites

Modern responsive front-end framework based on Material Design

Minimal, responsive, style-agnostic CSS framework

SCSS framework built to provide base styles, CSS components, and rapid static prototyping for Dropbox

Micro SCSS library to help you build websites, without all the arbitrary selectors

Lightweight, responsive, Sass-based, BEM-syntax grid system

Simple, fluid, nestable, flexible, Sass-based, responsive grid system

Extremely flexable CSS grid constructor

Flexbox grid system

Jeet

Simple fractional grid system for Sass and Stylus

Lightweight semantic grid framework built with Sass

Sass flexible grid system

SCSS flexible grid system

Susy

Responsive layout toolkit for Sass

Flexible and lightweight grid framework from the creator of

Easy to use flexbox grid system

Breakpoint

Breakpoint makes writing media queries in Sass super simple

Simple, elegant and maintainable media queries

mq-scss

An extreamly powerful but easy to use Sass media query mixin

Collection of useful media queries mixins for Sass (including iOS devices, TVs and more)

Sass MQ

Sass mixin that helps you compose media queries in an elegant way

1100+ collection of popular brand colors available in Sass, Less, Stylus and CSS

Open color

Open color is a color scheme for UI design. Available in CSS, SCSS, LESS, Stylus, Adobe library, Photoshop/Illustrator swatches and Sketch palette

sass-planifolia

Advanced color manipulation and contrast calculation in vanilla Sass

scss-blend-modes

Using standard color blending functions in Sass

Set text on the web to a baseline grid with Sass & rems using a responsive modular-scale

Sassy-Gridlover

Super easy to use Sass mixins to establish a typographic system with modular scale and vertical rhythm. Based on the Gridlover app

Typography made easy. A vertical rhythm library

Typi

Sass mixin to make responsive typography easy

Animate.scss

Port of Dan Eden's for SASS

Collection of CSS3 powered hover animated effects to be applied to links, buttons, logos, SVG, featured images and so on. Available in CSS, Sass, and LESS

Sass mixin library for creating keyframe-based animations from maps

Sass Burger

Sass mixin for creating animated hamburger icon

Set of SCSS mixins for single element loaders and spinners

Angled Edges

Sass mixin for creating angled edges on sections by dynamically encoding SVGs

Simple and lightweight mixin library for Sass

Buttono

A flexible Sass mixin for creating BEM-style buttons

Buttons

CSS button library built using Sass and Compass

A SCSS library to help you build modular CSS that generates your selectors for you and deals with specificity automatically

Set of 26 smart Sass mixins which will help you to manage the style of :nth-child’ified elements, in an easy and classy way

A Sass mixin library to help you create modern web sites

Collection of Sass mixins and functions

Modular Scale

Modular scale calculator built into your Sass

normalize-scss

Sass/Compass version of Normalize.css, a collection of HTML element and attribute rulesets to normalize styles across all browsers

Pretty checkbox

SCSS/CSS library to beautify checkbox and radio buttons

retina.js

JavaScript, SCSS, Sass, Less, and Stylus helpers for rendering high-resolution image variants

Accoutrement modules are Sass toolkits that work together to form the central configuration of a project. The tools can be used individually, or integrated for extra power

Sass Deprecate

Sass mixin that helps managing code deprecation

Sass flexbox mixin

Set of mixins for those who want to mess around with flexbox using the native support of current browsers

Sassdash

The Sass implementation of lodash ( )

Scut

Collection of Sass utilities to ease and improve the implementations of common style-code patterns

Guidelines for writing sane, maintainable and scalable Sass

BigCommerce Sass Coding Guidelines

Guidelines in use at BigCommerce

Airbnb Sass and CSS Style Guide

Sass and CSS style guide by Airbnb

Dropbox (S)CSS Style Guide

Dropbox’s (S)CSS authoring style guide

Hugo Giraudel Personal Awesome Sass List

Records of Hugo Giraudel's works on Sass

dart-sass

Dart implementation of Sass

Dependency management built for Sass, Less, and CSS

libsass-python

Binding of libsass for Python

libsass

C/C++ implementation of a Sass compiler

node-sass-magic-importer

Custom node-sass importer for selector specific imports, node importing, module importing, globbing support and importing files only once

node-sass

Node.js bindings to libsass

OctoLinker

Navigate through *.scss and *.sass files efficiently with the OctoLinker browser extension for GitHub

sass-extract

Extract variables from scss files. Use scss to describe styles for use in javascript by extracting computed styles into js objects. Supports imports and advanced language features

sass-loader

Sass loader for webpack

sass-rails

Ruby on Rails stylesheet engine for Sass

Documentation system (like JSDoc for JavaScript) to build pretty and powerful docs in the blink of an eye

Process your Sass and SCSS files into CSS without needing any knowledge of the command line

scss-lint

Configurable tool for writing clean and consistent SCSS

SharpScss

P/Invoke .NET wrapper around libsass to convert SCSS to CSS supporting NET2.0/NET3.5/NET4.x+ and CoreCLR platform

A mighty, modern CSS linter that helps you enforce consistent conventions and avoid errors in your stylesheets. Supports CSS-like syntaxes, including SCSS