Download of FastIcns 5.1.5 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus.
This free Mac app is a product of Juna Salviati & Matteo Mecucci. FastIcns for Mac is sometimes referred to as "FastIcons". The software relates to Theming Tools. The FastIcns installer is commonly called FastIcns v3.1.dmg or fasticns_v3.1.dmg etc. The most popular version of the tool is 3.1.
From the developer:
With an innovative and easy–to–use interface, you can create your icons for Mac in a few steps.
Pick your favourite file, folder or image and drag it over the cube; check the preview and then double-click the cube to save as an icns file, as a resource–fork–only file or as a PNG image. Or you can drop another file holding the Command key to assign it the icon.
You may want to check out more software for Mac, such as Iconic, Picture2Icon or iconStiX, which might be related to FastIcns.