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

As of 2020, Kotlin was the most widely used language on Android, with Google estimating that 70% of the top 1,000 apps on the Play Store were written in Kotlin.

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.

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.

This tutorial gives an introduction to Kotlin, and some of the key features and concepts of Kotlin language.

Kotlin is a modern, concise and efficient language developed by JetBrains, widely used in Android development and server-side applications. It offers a smooth development experience, balancing …

4 days ago · Thank you to everyone who participated in Advent of Code 2025 in Kotlin! Once again, it was a joy to see so many of you sharing solutions, cheering each other on in Slack, and keeping the …

5 days ago · Many Kotlin projects mirror Java thinking-code that works but lacks Kotlin’s concision, expressiveness & safety, creating “Java with a Kotlin accent.”

First steps Basic syntax A quick introduction to Kotlin syntax: keywords, operators, program structure

CodeQL includes many queries for analyzing Java and Kotlin code. All queries in the default query suite are run by default. If you choose to use the security-extended query suite, additional queries are run. …