Kotlin is a modern programming language developed by JetBrains that runs on the Java Virtual Machine (JVM). It is designed to be fully interoperable with Java, allowing developers to use both languages in the same project. Kotlin emphasizes safety, conciseness, and clarity, making it easier to write and maintain code. In 2017, Google announced official support for Kotlin on Android, which has led to its growing popularity among mobile developers. The language features a rich set of tools and libraries, enabling developers to create robust applications efficiently. Its syntax is user-friendly, making it accessible for beginners and experienced programmers alike.