Epiar is available both in its original source code (for developers) and as compiled binaries (for gamers, users). Most people will want the compiled binaries: these are easy to install, require no development knowledge, and are generally what you would find if you were to install any other game.
precompiled binaries (for most people)
Go to our download page and download the correct binary for your system (e.g. Windows, Mac OS X, Linux) and simply run the installer. If you have trouble with the installer, please contact us for help using our contact page.
source code (for developers)
There is one source code package per release, available on our download page, although you can also find experimental up-to-the-minute source code (our current work for the next release!) on our github page.
Building Epiar from source varies from system to system. See the source code for instructions.