Does JetBrains use Kotlin?

It is written in Kotlin just like the source code of your program.19 Mar 2022

IntelliJ IDEA provides first-class support for Kotlin . It includes Kotlin-specific project templates, coding assistance, refactorings, debugging, analysis tools, and so on.19 Kas 2021

If you develop open source software, you can get JetBrains tools for free ! JetBrains supports core contributors of non-commercial open source projects by providing them with professional coding tools free of charge.

Eclipse IDE Eclipse IDE is a widely known IDE that offers various packages for development in different languages and for different platforms. You can use it for writing Kotlin code.