Slammer puts a grid over any window

Grid systems are incredibly important to a lot of designers, but it can be time-consuming and frustrating to get a layout into an app that lets you draw a grid. Designs you're already working on are one thing, but what if you see a well-designed while you're just browsing and want to see a grid to find out more about how it's laid out? Slammer is an app for OS X (Leopard-only) that just throws an adjustable grid over any window.

Websites, application UIs, and anything you have open can all be quickly viewed under a grid with Slammer. You can adjust the spacing and positioning of the grid, and change the color so it doesn't blend in with what's underneath. You can save and share the grids you create, and a ruler -- which would be totally handy -- is listed as "coming soon." Automatic positioning also appears to be in the works, but it's honestly not too hard to position a Slammer grid yourself. If you design on a Mac, you'll love this app.

Tags: design, grid, grid-system, slammer