This article is the fifth in our new series that introduces the latest, useful and freely available tools and techniques, developed and released by active members of the Web design community. The first article covered [PrefixFree](https://www.smashingmagazine.com/2011/10/12/prefixfree-break-free-from-css-prefix-hell/); the second introduced [Foundation](https://www.smashingmagazine.com/2011/10/25/rapid-prototyping-for-any-device-with-foundation/), a responsive framework; the third presented [Sisyphus.js](https://www.smashingmagazine.com/2011/12/05/sisyphus-js-client-side-drafts-and-more/), a library for Gmail-like client-side drafts and the fourth shared with us a free plugin called [GuideGuide](https://www.smashingmagazine.com/2012/01/03/guideguide-free-plugin-for-dealing-with-grids-in-photoshop/). Today, we are happy to present Erskine’s responsive grid generator: **Gridpak**.