Foundation

Foundation is an easy to use, powerful, and flexible framework for building rapid prototypes and production code on any kind of device.

Free Open Source Web

Skeleton

Skeleton is a small collection of CSS & JS files that can help you rapidly develop sites that look beautiful at any size, be it a 17" laptop screen or an iPhone.

Free Open Source Web

Purecss

A set of small, responsive CSS modules that you can use in every web project.

Free Open Source Web

GroundworkCSS

GroundworkCSS is a 100% free and open source responsive HTML5, CSS and JavaScript Framework.

Free Open Source Web Self-Hosted

Picnic CSS

Unpack your meal and get coding. An invasive CSS library to get your style started.

Free Open Source Self-Hosted CSS

Refills

Refills are prepackaged patterns and components, built on top of Bourbon, Bitters and Neat.

Free Open Source Web

Responsable

Responsable is a responsive HTML CSS LESS SCSS framework with clean markup, normalized CSS, and responsive images. It allows for nested columns for easy grid nesting and...

Free Open Source Mac OS X Windows Linux

960 Grid System

The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12...

Free Open Source Mac OS X Windows Linux BSD Web

The Goldilocks Approach

The Goldilocks Approach to Responsive Web Design - A good starting point for design that takes device resolution out of the equation.

Free Open Source Web

Kube Web Framework

Kube is one of the world's most advanced and flexible frameworks. Kube helps you spend less time on routine tasks and more time creating amazing products. Focus on...

Free Open Source Web

The Semantic Grid System

Set column and gutter widths, choose the number of columns, and switch between pixels and percentages. All without any .grid_x classes in your markup. Oh, and did we...

Free Open Source Web

Golden Grid System

A grid system for responsive web design. Includes folding columns, elastic gutters, a zoomable baseline grid, and a delightful grid overlay script.

Free Open Source Web

320 and Up

The ‘tiny screen first’ responsive boilerplate.

Free Open Source Web

Less Framework

Less Framework is a CSS grid system for designing adaptive web­sites. It contains 4 layouts and 3 sets of typography presets, all based on a single grid.

Free Open Source Web

Amazium

960 grid system with 12 columns for Responsive Web Design. PSD file which has the 960 grid setup for you based on 32px gutters/margins. Offsetting columns - if you need...

Free Web

Fluid 960 Grid System

The Fluid 960 Grid System templates have been built upon the work of Nathan Smith and his 960 Grid System using effects from the MooTools and jQuery JavaScript...

Free Open Source Mac OS X Windows Linux BSD Web

Fluid Baseline Grid

The Fluid Baseline Grid System is an HTML5 & CSS3 development kit that provides a solid foundation to quickly design websites with ease.

Free Open Source Web

Foldy960

Foldy960 - A responsive version of the 960 grid, the Pvel way!

Free Open Source Mac OS X Windows Linux BSD Web

Frameless

Dig responsive design? Hate fluid grids? Try a Frameless grid.

Free Open Source Web