Is there a free version of IntelliJ?
IntelliJ IDEA is a cross-platform integrated development environment (IDE) that works on Windows, macOS, and Linux. The following editions of IntelliJ IDEA are available: The Community Edition is open-source and free, using an Apache 2.0 licence. It includes all of the necessary components for JVM and Android programming. IntelliJ IDEA Ultimate is a paid application that comes with a 30-day trial period. It includes more online and enterprise development tools and functionality.