Responsify.it
Responsify is a browser based tool, which allows you to create your own responsive template. Think of it as a foundation for you to build upon. You can customise the grid to suit your content, rather than trying to make the content fit the grid.
Who is it for?
Anyone who is creating a Responsive website. If you are new to Responsive design and not sure how to approach it, this is a good way to get something up and running quickly. Even if you just want to save time and the hassle of calculations, you’ll find it very useful too!
Why use it?
Creating grids from scratch is great but sometimes you just don’t have the time, especially if you are new to Responsive design. This isn’t just another grid system, you choose how many columns, the amount of gutter width etc. You have control.