Kotlin turns 15! Create a birthday postcard, share your wish, and explore more ways to celebrate the Kotlin Effect with the community.

Kotlin is a modern programming language developed by JetBrains, designed to interoperate with Java and run on the Java Virtual Machine (JVM). With features like null safety, type inference, and extension functions, Kotlin offers a concise and expressive syntax for building robust and scalable applications. Developers can learn Kotlin's language features, explore its ecosystem of libraries and frameworks, and leverage Kotlin for developing Android apps, server-side applications, and multi-platform projects.

Kotlin

Kotlin celebrates its 15th anniversary. JetBrains is marking the milestone with community activities including creating digital birthday postcards, a browser game, and free access to select Kotlin courses on Hyperskill until September 9, 2026.

Kotlin Turns 15: Celebrate the Kotlin Effect

Thank you for being part of Kotlin’s journey