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February 3, 2026
Pick Your KotlinConf Workshop by What You Want to Learn
Hi! Already coming to KotlinConf in Munich? Kick off the conference with a full day of hands-on workshops on May 20. Not going yet? Then this is a good moment to get your KotlinConf ticket and start with a workshop that matches what you want to learn. Asynchronous programming with Kotlin coroutines Learn how to […]
February 2, 2026
Join the Kotlin Ecosystem Mentorship Program
TL;DR: The Kotlin Foundation is launching a mentorship program that pairs experienced open-source maintainers with new Kotlin contributors to help them make their first meaningful contributions, with branded swag and a chance to win a trip to KotlinConf. I still remember my first contribution to an open-source library. It was Typhoon, a widely popular dependency […]
January 31, 2026
Qodana for Android: Increasing Code Quality for Kotlin-First Teams
When people think about tooling for Android development, the conversation often gravitates towards platform-specific concerns: UI performance, layout validation, device compatibility, or resource management. Yet for many Android teams, the most persistent challenges don’t sit at the platform level – they’re in the team’s Kotlin codebase itself. As Android projects scale, Kotlin brings strong language […]
January 26, 2026
Building AI Agents in Kotlin – Part 5: Teaching Agents to Forget
Previously in this series: Agents eventually run out of context. When they do, they crash, and you lose everything mid-task. We’ve been running GPT-5 Codex since Part 1. It scores 0.58 on SWE-bench Verified. We tried Claude Sonnet 4.5 next, which scored 0.6 and ran faster on most tasks. But complex problems hit Claude’s 200K […]
fun main() {
val name = "stranger" // Declare your first variable
println("Hi, $name!") // ...and use it!
print("Current count:")
for (i in 0..10) { // Loop over a range from 0 to 10
print(" $i")
}
}Kotlin in action
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Kotlin + AI
JetBrains is investing in AI models tailored for Kotlin, providing open data, benchmarks, and AI-native tooling integrated into your workflow.
At the same time, Kotlin makes it easy to build your own AI-powered features with seamless backend integrations and a growing ecosystem.
What you get with Kotlin + AI
- Strong support across JetBrains AI tools like AI Assistant and Junie
- Robust functionality for building AI-powered apps on the JVM
- Native integration with tools like Spring AI and LangChain4j
- Open data and benchmarks for better code generation
Build your own AI agents with Koog
Koog is JetBrains’ new Kotlin-native framework for creating powerful AI agents that run locally, interact with tools, and automate complex tasks. Whether you’re developing a simple chat assistant or an advanced multi-step workflow, Koog gives you full control with clean Kotlin code – no external services are required. Build, extend, and experiment with AI agents entirely in Kotlin.
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Kotlin Foundation
