
Junie
: How to use it, features, and the business problems it solves
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What is Junie?
An AI coding agent integrated into JetBrains IDEs that autonomously handles code generation, test writing, refactoring, and debugging from natural language instructions. It understands project context and proposes high-quality code aligned with development guidelines. Compatible with IntelliJ IDEA Ultimate, PyCharm Pro, WebStorm, and GoLand.
Business problems it solves
About "Junie"
How to Use
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Create an account and log in
Create an account on the JetBrains official website and log in to a supported IDE — IntelliJ IDEA Ultimate, PyCharm Pro, WebStorm, GoLand, and others.
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Enable Junie
Install the JetBrains AI plugin and enable Junie.
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Enter a task
Describe your task in natural language (e.g., "Create a new to-do app").
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Let Junie execute the task
Junie autonomously handles everything from requirements definition and design through implementation, testing, and deployment.
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Review progress and provide feedback
Monitor progress in real time and provide feedback as needed.
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Receive the deliverable
Receive the finished software or code and deploy it as needed.
Features
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Autonomous code generation
Based on natural language instructions, Junie autonomously handles everything from requirements definition through implementation, testing, and deployment.
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Adherence to project guidelines
Place a
.junie/guidelines.mdfile in your project to make Junie aware of and follow guidelines such as coding style and the technology stack in use. -
Automatic error detection and correction
When compilation errors or test failures occur, Junie automatically identifies the cause and attempts to fix it.
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Multi-step task execution
Handles multi-step tasks in a single pass — adding new features, integrating modules, and more.
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Cloud and local model support
Leverages both cloud-based AI models (such as Anthropic's Claude and the latest OpenAI models) and locally running AI models.
Pricing
| Plan | Monthly Price (tax included) | Key Features |
|---|---|---|
| Free | Free | Unlimited code completion, local AI model usage, monthly credits for cloud-based AI assistance and Junie |
| AI Pro | ~¥1,500 | All Free features plus increased monthly credits for cloud-based AI assistance and Junie |
| AI Ultimate | ~¥3,000 | All AI Pro features plus even more monthly credits and priority support |

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