If you want to extend the functionality of GIMP and Photoshop CC with plug-ins, you can do so with the Photoshop and GIMP Extensions Installer. The freeware comes with all versions of GIMP 2.0 and Photoshop CC 2017/2015 copes well and runs under Windows, Linux and macOS. Unfortunately, the free version is limited to 5 installation processes, then you have to buy the paid version of the vendor. P>
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With the free tool " Photoshop " GIMP Extensions Installer " (or PGEI) get quickly and easily a variety of Extensions for the graphics programs GIMP and Photoshop on your Windows, Linux, or Mac computer. The tool supports all GIMP versions from 2.0. and Photoshop CC 2017 and 2015. You can install five Extensions with the demo. p> Photoshop and GIMP Extensions Installer (PGEI) Although the graphics freeware GIMP and the professional solution Photoshop already have a very large range of functions, plug-ins can be extended by countless filters, effects, templates, scripts and the like. However, the collection of suitable add-ons is often quite laborious. The "Photoshop and GIMP Extensions Installer", in short PGEI (formerly known as GIMP-o-Helper), bundles some good plug-ins that can be installed via the free tool with just one click.
PEGI: Easy to install plugins for GIMP and Photoshop
PGEI is a Java program, so the useful freeware can be used on Windows, Linux and macOS - assuming Java is already installed on your system.
From the program interface, you can select your version of the program, then a plug-in, then add it to your graphics program using the "Install" button. Among the available add-ons are, for example, some brush types, photo effects and image filters that allow you to significantly expand the functionality of your graphics tool.