Hello,
I’m from the IntelliJ Scala team. IntelliJ IDEA Community Edition with the Scala plugin is free of charge, as always. I guess it might be a bit confusing, because on the main IntelliJ webpage only the Ultimate (paid) edition is being advertised. To download the Community edition, you need to either install JetBrains Toolbox first (JetBrains Toolbox App: Manage Your Tools with Ease) and find it in the list of JetBrains products there, or you can download the standalone version from here: Other Versions - IntelliJ IDEA .