Yet another free set of icons for your collection. It includes 40 free icons and it’s called Illustricons. These free icons were carefully designed with versatility in mind so that you have the ability to do more than you can ever imagine.. The icons are supplied as vectors, so they’ll scale to any size you need them to. The Illustricons set comes as AI, PSD, and PNG files. In addition, each individual icon is delivered as @1x and @2x PNG, and SVG files. The icons are free for personal and commercial use.