Kotlin is a concise and multiplatform programming language by JetBrains. Enjoy coding and build server-side, mobile, web, and desktop applications efficiently.

Kotlin (/ ˈkɒtlɪn /) [3] is a cross-platform, statically typed, general-purpose high-level programming language with type inference. Kotlin is designed to interoperate fully with Java, and the JVM version …

Kotlin is easy to learn, especially if you already know Java (it is 100% compatible with Java). Kotlin is used to develop Android apps, server side apps, and much more.

Kotlin is a modern statically typed programming language used by over 60% of professional Android developers that helps boost productivity, developer satisfaction, and code safety.

Dec 16, 2025 · The Kotlin 2.3.0 release is out! This version includes new language features, stable ones, and other features now enabled by default. This release also brings tooling updates, …

Aug 6, 2025 · In this Kotlin tutorial, you'll learn various important Kotlin topics, including data types, control flow, functions, object-oriented programming, collections, and more.

Familiarize yourself with Kotlin syntax by solving short programming challenges. Learn everything about classes, collections, properties, builders, and generic functions.