Java and Kotlin by IntelliJ IDEA

⚠️ This extension is currently in preview

Now you can have IntelliJ-powered language intelligence in Visual Studio Code and its forks, including Cursor or Antigravity.

This extension provides advanced Java and Kotlin language support, build system
integration (Maven, Gradle, Bazel), and debugging capabilities.

It is designed to complement AI-assisted development by making it easier to review, understand, navigate, and refine generated Java & Kotlin code before it reaches production.

Preview

During the preview period, the extension can be used without a license. Each preview build expires after 30 days. Installing a newer preview version renews the evaluation period. Licensing will be introduced with the 1.0 release.

Key capabilities

Built for large codebases and performance — Optimised for large mono-repositories, with low-latency project indexing, navigation, and code analysis.

Complete JVM language support - Develop Java, Kotlin, and mixed-language projects with language intelligence built on the same technology that powers IntelliJ IDEA.

Powerful build tool integration - Import and work with complex Maven, Gradle, and Bazel projects while preserving project structure and dependencies.

Professional debugging - Run and debug applications using IntelliJ IDEA's debugger engine.

Key Features

• Support for all Java and Kotlin releases
• Project import from Gradle, Maven, and Bazel
• Run and Debug
• Code navigation
• Documentation and library source lookup
• IntelliJ-powered code completion
• Signature help
• Diagnostics, inspections, and quick fixes
• Refactoring features
• Code formatting

For more details please visit 📘 Documentation

Quick Start

1. Install the extension (to VSCode or to Cursor)
2. Open any Java or Kotlin file in your project and extension will immediately analyse your project and provide smart language highlighting and features

Feedback and Support

We welcome your feedback and would love to hear about your experience.

If you have any questions, suggestions, or run into an issue, please contact us through the JetBrains support portal. Our team will get back to you as soon as possible.

Telemetry and Privacy

JetBrains can collect and transmit usage data in this version of the Product. Any such data will be handled in accordance with the JetBrains Privacy Notice available at https://www.jetbrains.com/legal/docs/privacy/privacy/ and the Product Data Collection and Usage Notice available at https://www.jetbrains.com/legal/docs/terms/product_data_collection/.

Supported Marketplaces

The extension is available on:

• Microsoft Visual Studio Code Marketplace (for Visual Studio Code)
• Open VSX Registry (for Cursor and other compatible VS Code-based editors)