Kotlin

Explore SDKs, Spring AI, MCP, Koog, and Junie – see how Kotlin powers AI apps and enhances your workflow with integrated AI tools.

OpenAPI and WebRTC support have been available in preview since the Ktor 3.3.0 release. See what else is coming to Ktor!

Have you given a talk before – maybe at a meetup, online event, or a smaller conference – and wondered if you're ready for a bigger stage like KotlinConf? This supportive and practical webinar is designed for people from underrepresented groups in tech who already have some speaking experience an…

The Kotlin 2.2.20 release is out! This version delivers important changes for web development and other improvements. Learn more!

Join us live from the ICPC World Finals in Baku, Azerbaijan, for a special event. This year, we are hosting a head-to-head match where two of the world’s top competitive programmers, Andrew ‘ecnerwala’ He and David ‘SecondThread’ Harmeyer, will speed-solve Kotlin problems in real time.  Save…

Featuring Langfuse and W&B Weave Support, Ktor Integration, Native Structured Output, iOS Target, GPT-5, and More. Koog 0.3.0 was about making agents smarter and persistent. Koog 0.4.0 is about making them observable, seamlessly deployable in your stack, and more predictable in their outputs …

Explore data science using Kotlin: connect to PostgreSQL, analyze with DataFrame, and plot insights with Kandy in this powerlifting case study.

Kotlin Notebook is a great tool for educators who want to teach programming in a more hands-on way. It lets you combine runnable code, Markdown textual explanations, and visualizations in one interactive environment.

Discover our priorities and the general direction for Kotlin Multiplatform and Compose Multiplatform over the next six to twelve months.

KotlinConf 2025 firmly put server-side Kotlin in the spotlight. Check out this article for all the server-side talk videos from the event.

Summer may be the season for vacations, but we’re not slowing down! Let’s take a stroll through the latest Kotlin ecosystem news.

This release of kotlinx.rpc introduces significant improvements aimed at the long-term stability, maintenance, and evolution of the library.