GroIMP is a pure Java application, therefore a Java Virtual Machine should be installed before installing GroIMP. GroIMP releases consist the compiled executable and a pre-packaged versions for each Windows x64, Mac, and Linux (containing not just the GroIMP executable, but also its dependencies).
The easiest way to install GroIMP is to run an executable file. The executable file is downloadable on the grogra website. It can then be executed like many common installer file by double clicking on it. This trigger the installation of the software. The file will also automatically create a shortcut.
GroIMP can be installed from the sources. The code is compiled and packaged to be runnable. This enable to have the lattest version on the code, which can be unstable.
Because `core.jar` is an executable java archive, it is possible to start GroIMP just by (double-)clicking on the file in your system's file browser as you would do with a usual executable file. This requires a suitable setup of your file browser, see the documentation of the browser and your Java installation if it does not already work.
After you followed the installation instruction and started the software, you should be able to proceed the steps shown in the animation below:
GroIMP is designed around a Plugin architecture. The plugins can be added and removed from the software to fit the features wanted.