The μ framework is just 1 kb.
Best CSS Frameworks
What is a CSS Framework?
CSS framework is simply a collection of CSS classes/modules which can be reused in your project. The aim of a CSS framework is to help develop building blocks with enough use of markup and CSS rules, and to use those to create a robust and efficiently usable layout system independent of content.
A barebones CSS framework in 999 bytes. Looking for some ready CSS library under 1K to scaffold your markup on? Look no further. 999.css weighs 999 bytes.
Amazium 4 has been created to make building your prototype as easy and quick as possible. It includes a ton of modular components from Typography to Forms that will allow you to focus on the more inportant things like your design.
As a web developer you read more code than you write, so it's quite important to keep your code clear, readable, consistent and explicit. ApplePie naming and organization conventions are built to bring standards to front-end development.
It makes your HTML beautiful.
A minimal, responsive boilerplate for the modern web.
BareKit is a front-end project starter meant to be a starting point and structural guide rather than a full framework. It's bare enough to not interfere with your custom styles or scripts, but yet has enough functioning modules to jumpstart a project in no time.
Bass is a lightning fast modular CSS with no side effects. Basscss provides lightweight, performant styles and flexible utilities to design for any device and to help reduce boilerplate in stylesheets.
Blackhole is a modular, flexible, minimalistic, but powerful SASS / CSS framework which focuses on semantics and preaches a write clear code way of getting things done.
Open source modular CSS toolkit providing great structure for building websites quickly.
Bootstrap is the most popular HTML, CSS, and JS framework for developing responsive, mobile first projects on the web.
A modern CSS framework based on Flexbox.
Cardinal is a modular, “mobile-first” CSS framework built with performance and scalability in mind.
Centurion was build with only a responsive grid, so at its core Centurion is built to be responsive. It was developed along the same lines as Nathan Smith's 960 Grid, but has taken a different direction since then. The grid and features of Centurion are built using Sass mixins (written in SCSS), which make it highly customizable for any project.
Chocolate is a responsive CSS framework which is not only lightweight and highly customizable, but also very simple to use. Built on top of SASS, chocolate ships as standard CSS but can also be compiled from source.
Concise CSS, a framework written in SASS that’s lightweight and easy-to-use.
Corpus is yet another CSS toolkit. It’s basically a collection of the things I find myself returning to for each new project. It uses Flexbox for the grid system, viewport-based heights and percentage-based widths,
A Deliciously Simple Framework, Uses placeholder selectors to reduce the size of your HTML. No one likes messy. Allows you the freedom to do what you want with your code. Make it your own.
A sassy, opinionated CSS Framework. A tiny alternative to Bootstrap.
A (mostly) CSS-driven presentation framework
A CSS framework based on the design of elementary OS.
Foundation The most advanced responsive front-end framework in the world.
Lightweight & friendly front-end framework to get job done.
A forward-thinking, CSS micro-framework. Furtive is truly mobile-first and nearly all dimensions are done in rem. It also has a small footprint, cutting down on the bandwidth necessary for downloading CSS.
Many hackers enjoy the readability of markdown code, some stylings in hack.css are exactly the way markdown is.
Extensible, scalable, Sass-based, OOCSS framework for large and long-lasting UI projects.
Build amazing native and progressive web apps with Angular and open web technologies. One app running on everything.
feuille de styles CSS sur-vitaminée.
kouto swiss gives you a lot of mixins, functions and utilities to code faster, and include the power of caniuse website to make your stylesheets fits your compatibility needs.
Kraken is a lightweight, mobile-first boilerplate for front-end web developers.
Kube is mainly a tool, which helps to keep routine tasks to a minimum. Kube doesn’t impose its own styles and doesn’t require following any specific design rules or practices. It makes Kube ideal for creative and challenging tasks of making unique websites with the unique design. For those who know HTML/CSS/JS inside out, Kube may become an irreplaceable tool that saves countless hours of work.
Lightweight. Unobtrusive. Style-agnostic. Build your look on the web, not Twitter's – and build it fluid.
A CSS framework based on Google's material design.
A modern responsive front-end framework based on Material Design
The front-end framework for developing projects on the web in Windows Metro Style
Milligram provides a minimal setup of styles for a fast and clean starting point. Just it! Only 2kb gzipped! It's not about a UI framework. Specially designed for better performance and higher productivity with fewer properties to reset resulting in cleaner code.
Min provides easy copy-and-paste examples for every element. You can get started with any of the provided templates, or you can read the complete and concise documentation with visual examples for every part of Min.
mini.css a minimal Sass-y responsive mobile-first style-agnostic CSS framework.
A lightweight, flexible css framework that focus on mobile.
Modulr is a fast and modular approach to building powerful web and mobile interfaces.
MUI is a lightweight CSS framework that follows Google's Material Design guidelines.
Pavilion was created out of the need for a simple, unopinionated CSS framework, ready for the future. Pavilion is built for front-end web developers who tend to never use the hundreds of pre-made UI components most frameworks ship with. Built for front-end developers who lean towards creativity, exploration and creating UI components themselves from the ground up whilst depending on a solid foundation with future-proof capabilities.
The native HTML elements get a boost so you don't need to write presentation classes mixed with your HTML. Picnic is completely modular so you can easily modify and test each part.
Pure is a set of small, responsive CSS modules that you can use in every web project. Pure builds on Normalize.css and provides layout and styling for native HTML elements, plus the most common UI components. It's what you need, without the cruft.
Lightweight, more intuitive and useful responsive CSS framework.
A powerful, accessible, developer friendly framework for building responsive websites
Beautiful, DRY,Clean and Reusable CSS, The CSS Framework for your Team.
A rock solid, powerful little CSS framework that won’t let you down.
A modular, front end framework to easily and quickly help you jumpstart your process in building complex interfaces for the web right out the box.
Minimal CSS framework for flat and clean designs.
A dead simple, responsive boilerplate.
Skyline is a starting point for building custom CSS frameworks. The starter kit provides a solid CSS architecture that acts as a scaffolding to support your unique design system. It promotes object-oriented CSS, written in SCSS using BEM notation.
SPACEBASE IS A SASS-BASED RESPONSIVE CSS FRAMEWORK
Spectre.css is a lightweight, responsive and modern CSS framework for faster and extensible development.
A Material Design CSS only framework.
Tacit is a CSS framework for dummies, who want their web services to look attractive but have almost zero skills in graphic design.
Tidy reduces the amount of HTML required for your pages, but doesn't limit you to a certain way of doing things. Give it a try, use less and achieve more.
CSS for clean and fast web apps.
A simple extensible CSS framework, written in Sass.
A minimally invasive CSS framework for modern web applications
Wee, a framework for logically building complex, responsive web projects.
Wing is made for those smaller side projects, as it isn't as full featured as Bootstrap, Foundation, etc. Wing styles basic elements, comes with a grid, and some fading animations.
An open source HTML, CSS & JS framework for developing front-end web applications faster.
YAML (Yet Another Multicolumn Layout) is a modular CSS framework for truly flexible, accessible and responsive websites. It is based on Sass and has a very slim framework core that weights only ~6kB
yet's lightweight, modular pattern library written in Stylus.