15 years of Kotlin data: adoption, backend, multiplatform, and AI. Read the highlights and download the full State of Kotlin 2026 report.

Discover the Kotlin Effect. Write less code, do more, and enjoy the process. Watch the video, play the game, and explore learning resources.

Ktor 3.6.0 is here! This release brings typed authentication, OpenID Connect, HTTP/3 for Netty, and simpler Kotlin Multiplatform clients.

KotlinConf is the official Kotlin conference by JetBrains. It is a place for the community to gather and discuss all things Kotlin.

We migrated the Shop app from React Native to Swift and Kotlin, going from proof-of-concept to publishing in 12 weeks with the help of AI.

Coding agents changed what it costs to build mobile apps twice. Here’s why Shopify is moving from React Native back to Swift and Kotlin.

This release brings MCP server for AI agents in Compose Hot Reload, automatic font fallback for web, and v2 version of the window and dialog API for desktop.

Today, the Mojo language officially reaches 1.0: a milestone the language has been building toward since its first release in 2023. Mojo has grown into a general-purpose language with a vibrant develo...

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

OkHttp, Okio, Retrofit, and SQLDelight join Commonhaus under the lysine.dev banner

Iroh 1.0 is out. Now is the time to build.

KMP @ Booking.com

Homebrew 6.0.0 has been released.

KotlinConf is the official Kotlin conference by JetBrains. It is a place for the community to gather and discuss all things Kotlin.

At KotlinConf’26, the JetBrains team and industry partners shared how Kotlin continues to evolve for developers at every scale.

At KotlinConf’26, the JetBrains team and industry partners shared how Kotlin continues to evolve for developers at every scale.

KotlinConf is the premier event connecting professional developers and companies shaping the future with cutting-edge technologies. Please note that the live...

Compose Multiplatform 1.11.0 has been released with improvements to the iOS and web experience and a refreshed approach to UI testing.

Exposed is a Kotlin SQL library providing a typesafe DSL for constructing queries and a lightweight DAO framework for database interaction in ORM style.

Metro 1.0.0 is out now and stable. This means that its runtime APIs (runtime, MetroX artifacts, Gradle plugin, etc.) are now API-stable unless annotated with an experimental annotation. This is an ex...

Download Air – free for macOS. Windows and Linux versions coming soon. We hold a principled optimism for agentic software development – and a pragmatic one. After 26 years of building developer too

YouTube video by CultRepo

Unison is a pure functional language introducing a groundbreaking concept: content-addressed code. On top of the well-known advantages of functional programm...

Together with Zed, we've launched the official ACP Registry: a directory of AI coding agents, integrated directly into JetBrains IDEs.

Download directly MCPs are everywhere, but are they worth the token cost? We break down what Model Context Protocol actually is, how it differs from just using CLIs, the tradeoffs you should know abo...

Ktor 3.4.0 is now available! It improves stability and addresses outstanding issues. Highlights include OpenAPI generation, Ztsd support for the compression plugin, duplex streaming for OkHttp, Struct...

This is the first major release of Exposed – a huge milestone for both the project and the Exposed team! This release brings many new exciting features, the most requested being R2DBC support, as well...

Download directly Most folks reference “AI coding” like it’s one thing. It’s really not. In this foundational episode Kaushik & Iury walk through (at least) four paradigms — from super autocomplete t...