JetBrains introduces Java to Kotlin converter for Visual Studio Code

JetBrains has released a Java to Kotlin converter extension for Visual Studio Code, available on the VS Code Marketplace. The extension lets developers convert individual Java files to Kotlin via a context menu action, using the same conversion engine found in JetBrains IDEs combined with LLMs to produce idiomatic Kotlin output. It supports multiple LLM backends including GitHub Copilot, Ollama, and OpenRouter, and is designed to reduce manual effort when migrating legacy Java codebases or transitioning projects to Kotlin.