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# IntelliJ IDEA Goes LSP: Java and Kotlin Intelligence Comes to VS Code, Cursor, and Agentic Flows

**[JetBrains](https://daily.dev/sources/jetbrains)** · 4 min read · 12 upvotes · 0 comments

## Summary

JetBrains has launched a preview VS Code extension called 'Java & Kotlin by IntelliJ IDEA' that brings IntelliJ IDEA's Java and Kotlin language intelligence to VS Code, Cursor, and other LSP-compatible editors. The extension provides smart code completion, navigation, code analysis, refactorings, and support for Maven, Gradle, and Bazel build systems. It is free during the preview phase but will require an IntelliJ IDEA Ultimate license afterward. JetBrains also reports promising internal results using the same LSP functionality to improve terminal-based agentic workflows with tools like Claude Code and Codex, with plans to share those results and release agent plugins soon.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.jetbrains.com/idea/2026/08/intellij-idea-goes-lsp>

## Questions this post answers

### How do I get IntelliJ IDEA's Java and Kotlin code intelligence inside VS Code or Cursor?

Install the Java & Kotlin by IntelliJ IDEA preview extension from the Visual Studio Marketplace or Open VSX registry. It adds smart code completion, navigation, refactorings, and code analysis for Java, Kotlin, and mixed-language projects, with support for Maven, Gradle, and Bazel builds, powered by IntelliJ IDEA's LSP-based language server.

_Developers weighing IntelliJ features against native VS Code tooling can track releases like this on daily.dev._

### Is the JetBrains Java and Kotlin VS Code extension free to use?

It is free during the preview phase, though each build expires after 30 days and must be updated. After the preview period ends, using the extension will require an IntelliJ IDEA Ultimate license, the same license that covers IntelliJ IDEA's Java and Kotlin capabilities across the desktop IDE and other supported environments.

_Anyone budgeting for IDE tooling can follow licensing changes like this on daily.dev._

### Should I disable Red Hat's or Oracle's Java extensions when using JetBrains' new VS Code extension?

Yes, JetBrains recommends disabling Red Hat's and Oracle's Java extensions for VS Code while testing, because the Java & Kotlin by IntelliJ IDEA extension includes code analysis features and quick-fixes that overlap with them, which can cause confusion or conflicting suggestions in the editor.

_Developers juggling overlapping VS Code extensions can compare tooling trade-offs like this on daily.dev._

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- [Official Kotlin Support for Visual Studio Code Is Now Available in Alpha](https://daily.dev/posts/official-kotlin-support-for-visual-studio-code-is-now-available-in-alpha-zjfwtd9sp) · JetBrains · 7 upvotes · 1 comments
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---

Tags: [#devtools](https://daily.dev/tags/devtools), [#java](https://daily.dev/tags/java), [#kotlin](https://daily.dev/tags/kotlin), [#vscode](https://daily.dev/tags/vscode), [#lsp](https://daily.dev/tags/lsp)

[View this post on daily.dev](https://daily.dev/posts/intellij-idea-goes-lsp-java-and-kotlin-intelligence-comes-to-vs-code-cursor-and-agentic-flows-tqkhupkzt)

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