Kotlin is a statically typed programming language that is designed to interoperate with Java code. Since the kotlinc compiler generates the same bytecode as javac, migrating to a new code base doesn't require a lot of effort. Kotlin is a modern language that contains many features from different paradigms that allow you to write concise and safe code. In light of all these points, Kotlin is growing in popularity and seeing an increase in the number of developers who use it.