Junie Junie
Junie is an autonomous AI coding agent by JetBrains that integrates directly into IDEs and terminal environments to delegate complex development tasks. It uses deep project context, a compiler-grade codebase index, and native IDE debugger integration to plan, implement, and verify code changes.
Moved to General Availability in June 2026, introducing a standalone CLI for CI/CD, agentic debugging with IDE breakpoint control, and expanded BYOK support for top-tier models like GPT-5.5 and Gemini 3.5 Pro.
As of
- Autonomous plan-implement-test loop
- Native IDE debugger control for runtime inspection
- Async execution for long-running tasks like migrations
- BYOK (Bring Your Own Key) support for flexible model usage
- Structured plan management in.junie/plans
Developers working in Java, Kotlin, or Python on complex, multi-module projects within JetBrains IDEs who require autonomous debugging and deep project context.
Users prioritizing polyglot terminal-first workflows where compiler-grade indexing is less critical, or developers who prefer not to manage or configure their own API keys for high-volume agentic tasks.
Subscription-based with tiered monthly AI credits (AI Pro at $8.33/mo for 10 credits; AI Ultimate at $25/mo for 35 credits). Additional credits can be purchased as top-ups. Supports BYOK (Bring Your Own Key) for unlimited usage at provider rates.
Junie is currently the most sophisticated coding agent for the JetBrains ecosystem, uniquely bridging the gap between IDE tooling and autonomous agents through its deep semantic project understanding and native debugger integration.
Is Junie free?
Junie is Freemium. Subscription-based with tiered monthly AI credits (AI Pro at $8.33/mo for 10 credits; AI Ultimate at $25/mo for 35 credits). Additional credits can be purchased as top-ups. Supports BYOK (Bring Your Own Key) for unlimited usage at provider rates. Check the official site for current plans.
What is Junie best for?
Developers working in Java, Kotlin, or Python on complex, multi-module projects within JetBrains IDEs who require autonomous debugging and deep project context.
Who makes Junie?
Junie is developed by JetBrains. It is listed in the IDE Extensions & Plugins category on ai.dosa.dev.
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