Griddle 1.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This Mac application is an intellectual property of Splasm Software, Inc. The program belongs to Design & Photo Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Griddle is a fast and handy pixel grid generator, suitable for your graphics applications and projects. With this program, you can bend, warp, and integrate grids directly into your work. You may create the grid you need, as it provides custom grid size and origin, as well as major and minor grid layers with discrete line color, opacity, and style settings.
You may want to check out more Mac applications, such as Pixel Puzzle, which might be related to Griddle.