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

You will need version 4 or higher of `firefox`
to run Pencil as a Firefox Extension. Linux users will need version 4 or higher of either `firefox`, `iceweasel` or `xulrunner`,
or version 25 or higher of `palemoon`
The Windows installer and OS X archive has everything you need built-in. Windows, Linux, OS X & Firefox Packages are available for download from the Releases Page
You can also install the Firefox Add-on from the Mozilla Add-on Repository
To install the OS X package, unzip the archive and copy the `` folder t

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Frameless alternatives


Bootstrap is a open-source collection of tools for creating browser sites and applications. It contains HTML and CSS-based design templates for typ...

tags: css css3 design-tools html5 responsive-design
platform: Self-Hosted HTML5 Boilerplate JavaScript


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

tags: css-framework css-grid-system development fluid framework
platform: Online


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...

tags: css css-framework css-grid-system
platform: Online


Materialize is a modern responsive CSS framework based on Material Design by Google

tags: css-framework design-framework framework material-design mobile-framework
platform: Online


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

tags: css-grid-system html5 responsive-web-design ui-framework ui-prototyping
platform: Online


feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It i...

tags: image-viewer
platform: Linux

Metro UI CSS

Metro UI CSS a set of styles to create a site with an interface similar to Windows 8.

tags: css responsive-design web-design web-development
platform: Online LESS jQuery


Spectre.css is a lightweight, responsive and modern CSS framework for faster and extensible development.

tags: css css-framework css3 web-design web-development
platform: Online Self-Hosted


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

tags: css-framework html5 javascript-framework responsive-css responsive-web-design
platform: Online Self-Hosted


Simple bootstrap from Twitter with Metro style.

tags: css css3 web-design web-development
platform: Online Bootstrap

Material Design Lite

An implementation of Material Design components in vanilla CSS, JS, and HTML.

tags: css-framework web-design
platform: Online



tags: css css-framework css-grid-system css3 design
platform: Online

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. Ther...

tags: css-framework css-grid-system web-development
platform: Mac OS X Windows Linux Online BSD


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

tags: css css-framework css-grid-system css3 development
platform: Online

The Goldilocks Approach

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

tags: development responsive-web-design web-development
platform: Online