Top 18 Free CSS3 Resources To Build Fast Lightweight Websites

This page summarizes the projects mentioned and recommended in the original post on

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  • Sass

    Sass makes CSS fun!

    5. SCSS (Sassy CSS)

  • less.js

    Less. The dynamic stylesheet language.

    4. LESS (Leaner Style Sheets)

  • Appwrite

    Appwrite - The open-source backend cloud platform. Add Auth, Databases, Functions, and Storage to your product and build any application at any scale while using your preferred coding languages and tools.

  • UI kit

    A lightweight and modular front-end framework for developing fast and powerful web interfaces

    3. UIKit

  • Bootstrap

    The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

    1. Bootstrap

  • Base

    Base - A Rock Solid, Responsive CSS Framework built to work on all devices big, small and in-between.

    14. Base

  • foundation-rails

    Foundation for Rails

    2. Foundation

  • Toast

    🍞 A highly-customizable, responsive (S)CSS grid

    6. Toast

  • Onboard AI

    Learn any GitHub repo in 59 seconds. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at

  • Bulma

    Modern CSS framework based on Flexbox

    8. Bulma

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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