Gimp – Works with macOS 10.9 Mavericks or later, Linux & WindowsĦ. However, if you’re more of the Illustrator kind of person, you should check out this article on the best free Illustrator alternatives that you can start using right now! Table of Contentsģ. These free Photoshop alternatives are definitely a game-changer! Although they don’t provide the same extensive functionalities as Adobe Photoshop suite, shown below you have a list of free photo editing software alike, some of which work with Mac and are open-source, that could achieve your small day-to-day tasks in a proficient manner.