
Junie is the JetBrains autonomous AI coding agent integrated into JetBrains integrated development environments.
Junie is the JetBrains autonomous AI coding agent designed to plan, implement, and verify multi-step software changes directly inside JetBrains integrated development environments. The agent runs alongside IntelliJ IDEA, PyCharm, WebStorm, GoLand, and Rider, drafts and edits code, executes tests, and iterates until the requested change passes.
Junie entered closed preview in January 2025 and became generally available in April 2025 as part of the JetBrains AI Assistant subscription. The agent integrates with the Mellum coding model and supports external models through the Agent Client Protocol.


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