Kotlin by JetBrains
@kotlinlang
Kotlin is a programming language that makes coding concise, cross-platform, and fun — Video tutorials News Community discussions
📢 Kotlin 2.4.10 is here! This release brings performance improvements and bug fixes. Changelog: ➡️ github.com/JetBrains/ko...
📌 New to Kotlin Multiplatform? The Basics of Kotlin Multiplatform pathway from Android Developers walks you through adding KMP to a project and using platform-specific APIs, and shows how shared code fits into Android and iOS apps. Start here 👇 https://kotl.in/6nyqaz
📢 Last chance to apply! Applications for the 2026 Kotlin Foundation Grant for Library Authors close tomorrow, July 14. If you’re developing an open-source Kotlin library, tool, or framework – especially in KMP, AI, or LLM development – apply by tomorrow 👇 https://kotl.in/muii75
Kotlin Multiplatform lets teams choose how much code to share. Start with small shared modules, share business logic while keeping the UI native, or gradually migrate your UI with Compose Multiplatform when it makes sense for your project. Explore KMP flexibility 👇 https://kotl.in/cal3xg
Using Kotlin code from Swift in a KMP project? These libraries help improve the iOS experience: ⚡ KMP-NativeCoroutines – Kotlin coroutines from Swift https://kotl.in/8anota ✨ SKIE – Swift-friendly Kotlin APIs https://kotl.in/pspfwh Explore more on Klibs.io 👇 https://kotl.in/q0h9ia
Kotlin now has its own public benchmark for AI coding agents. 🚀 The Kotlin Benchmark ranks agents on 105 engineering tasks from open-source Kotlin repositories. Compare agents by resolution rate, token cost, and latency, and dive into the methodology. 👉 kotl.in/benchmark-bl...
📢 Kotlin 2.4.10-RC2 is here! This release brings performance improvements and bug fixes. Changelog: ➡️ github.com/JetBrains/ko...
🛠️ Switch your Kotlin Multiplatform project from CocoaPods to SwiftPM dependencies with Junie. Try the experimental SwiftPM import integration with help from a Kotlin AI skill – then review and test the changes. Follow the guide 👇 https://kotl.in/kmp-pods-to-spm-junie-x
⏰ Just two weeks left! Apply by July 14 for a 2026 Kotlin Foundation Grant for Library Authors. Building an open-source Kotlin library, tool, or framework? Your project could receive funding – especially if it advances Multiplatform, AI, or LLM development. Apply now 👇 https://kotl.in/muii75
🤖 Build a task manager app with Kotlin, Spring Boot, and Claude Agent. Follow a hands-on tutorial to plan your app, review the code, run tests, and refine the UI in IntelliJ IDEA. Start building 👇 https://kotl.in/tm-sp-claude-x
🤖 Reliable AI agents for Kotlin-specific tasks? We built that. Explore Kotlin AI skills for Java-to-Kotlin conversion, AGP 9 migration, and moving KMP projects from CocoaPods to SwiftPM. Get started 👇 https://kotl.in/aiskills-x
💜 Missed the latest Kotlin updates? Kotlin turned 15, Kotlin 2.4.0 is here, Koog reached 1.0, and there’s more to catch up on – from Toolchain 0.11 and Compose Multiplatform updates to KMP libraries and real-world stories. Read Kodee’s Kotlin Roundup 👇 https://kotl.in/ucmi1i
📢 Kotlin 2.4.10-RC is here! This release brings performance improvements and bug fixes. Changelog: ➡️ github.com/JetBrains/ko...
Need a license information screen for your Kotlin Multiplatform app? AboutLibraries collects dependency and license information at compile time, then provides simple APIs and Compose components to display it – with no runtime overhead. Explore it on Klibs.io 👇 https://kotl.in/bhj2xq
📢 Kotlin 2.4.20-Beta1 is out! Learn more: ➡️ kotl.in/2-4-20-beta1
Help us understand your experience with Kotlin releases. We’re running a survey to learn what you think about Kotlin releases and how we can improve your experience. Tell us what works well, what’s challenging, and what matters most for you. https://surveys.jetbrains.com/s3/Kotlin-release-1
Did you know that Ktor has a built-in test framework for REST APIs? Run tests in isolation, verify endpoints, and serialize types safely. Check out the docs 👉 https://kotl.in/ktor-test
🎉 To celebrate 15 years of Kotlin, we're offering free access to select Kotlin courses on Hyperskill. Deepen your Kotlin knowledge with hands-on, project-based learning and continue building real-world experience. Keep learning Kotlin 👇 https://kotl.in/a1ityw
🎉 Kotlin turns 15 this year! 🎉 As part of the celebration, we've brought the Kotlin Effect into real life – making everyday situations more concise, efficient, and fun. Watch on YouTube: https://kotl.in/u6nciz Explore the Kotlin Effect further: https://kotl.in/6xzc69
How do you connect the business logic of your app with its UI components? 🧩 Follow our guide to set up a multiplatform ViewModel, scope it to navigation destinations, inject dependencies with Koin or Metro, and explore different code-sharing approaches. Read the guide 👇 https://kotl.in/zxux6n
Bring iOS 26 Liquid Glass to your Compose Multiplatform app! Use native SwiftUI navigation for system-rendered Liquid Glass effects while Compose renders your screen content. Follow the step-by-step tutorial 👇 https://kotl.in/f5f4h3
🚀 Great news for Compose developers! Compose Hot Reload 1.2.0-alpha01 introduces an experimental MCP server that enables AI agents to interact with running Compose apps in real time. Be the first to try it and help shape what comes next 👇 https://kotl.in/8uy4jh
🦑 The Exposed logo has been around for a while now – but we never shared the animation behind it. A good excuse to revisit JetBrains’ Kotlin-first SQL library for type-safe database access, backend services, migrations, Spring Boot, Ktor, and more: https://kotl.in/cfqsgv
🤖 Converting Java to Kotlin with AI? This agent skill helps AI assistants produce more idiomatic Kotlin code and handle framework-specific patterns for Spring, Hibernate, Jackson, Retrofit, Mockito, and more. See how it works 👇 https://kotl.in/ed0w5e
KMP isn’t only for sharing business logic. With Compose Multiplatform, you can share UIs across Android, iOS, desktop, and web. According to the KMP Survey 2025, 93% of Android developers say it meets their expectations for iOS feel and behavior. Build shared UIs 👉 https://kotl.in/f2l92s
🤖 Kotlin developers using Spring Data JPA and Hibernate will appreciate this new agent skill. It helps AI assistants design entities, map relationships, fetch plans and indexes, and identify common persistence issues before they reach production. See how it can help 👇 https://kotl.in/yqcb1e
Using AI tools to work with Kotlin? We want to hear from you. 🤖 We’re exploring how well today’s AI tools support Kotlin in real workflows and where the experience still falls short. Share your perspective in our 10-minute survey 👇 https://surveys.jetbrains.com/s3/Kotlin-AI-a2
🤖 Agentic systems introduce new reliability challenges. Don’t miss Urs Peter’s upcoming session on eval-driven development with Koog, in which he’ll explore how to bring testing and evaluation practices into AI agent workflows. Catch it live in 15 min: https://kotl.in/2xma8u