It continues to gain traction in multiple domains, and there has never been a better time to get started with Kotlin. Kotlin has already been adopted in many popular frameworks and tools such as Spring and Gradle. Beside the JVM, Kotlin can compile for most Android versions, down to machine code using LLVM and can also be transpiled to JavaScript. The language is said to be very concise, safe in terms of error frequency, interoperable with Java and also offers many features that enable functional programming, writing type-safe DSLs and much more. Nevertheless, it's an open source language, which can be found on GitHub. Kotlin is being developed by JetBrains, who are responsible for the most famous IDEs out there, most notably IntelliJ IDEA. One special reason is that it experienced a lot of attention in the Android community after Google made Kotlin an official language for Android development. Kotlin has become one of the most popular JVM languages in the past few months.

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