Junie by JetBrains
Junie by JetBrains: A Windsurf Alternative for Autonomous AI Coding
Junie is an AI coding agent developed by JetBrains. It operates autonomously inside JetBrains IDEs — reading your codebase, writing and editing code, running tests, and iterating on results — using Claude 3.7 Sonnet as its primary backend model.
Windsurf vs Junie by JetBrains
| Feature | Windsurf | Junie by JetBrains |
|---|---|---|
| AI Model | Cascade (Codeium) | Claude 3.7 Sonnet (Anthropic) |
| Pricing | Free + $15/mo Pro | Free tier + AI Pro $10/mo, AI Ultimate $30/mo |
| Type | AI IDE | AI Coding Agent (JetBrains plugin) |
| Open Source | No | No |
Tech Details
- Type: AI Coding Agent (built-in JetBrains IDE feature)
- Platform: All JetBrains IDEs — IntelliJ IDEA, PyCharm, WebStorm, GoLand, Rider, CLion, PhpStorm, Android Studio (JetBrains IDEs 2025.1+)
- Pricing: AI Free (limited quota); AI Pro ~$10/mo; AI Ultimate ~$30/mo
- Privacy: Cloud-based; JetBrains AI service routes requests to external LLMs (Anthropic, OpenAI, Google). Enterprise on-premises available.
- Open Source: No
Key Features
- Autonomous Task Execution: Junie can take a high-level task description and execute it end-to-end — reading relevant files, making code changes, running tests, and iterating until the task is complete. You can delegate entire features or bug fixes and review the final result.
- Deep IDE Integration: Unlike Windsurf which is a separate editor, Junie lives natively inside your existing JetBrains IDE. It understands your project structure, can navigate to definitions, run inspections, and use JetBrains' built-in refactoring tools as part of its workflow.
- Claude 3.7 Sonnet Backend: Junie uses Anthropic's Claude 3.7 Sonnet as its default agentic model, one of the most capable models for code reasoning and long-context tasks. This gives it strong performance on complex multi-file tasks.
- AI Free Tier Available: Starting with JetBrains IDEs 2025.1, Junie is accessible via a free AI quota — allowing developers to try autonomous AI coding without a paid subscription. Heavier use requires AI Pro or Ultimate.
When to Choose Junie by JetBrains
Junie is the right choice for developers who are deeply invested in the JetBrains ecosystem and want enterprise-grade autonomous AI coding without switching editors. Unlike Windsurf, which requires adopting a new IDE, Junie is a first-party feature that works with your existing IntelliJ or PyCharm setup. It's backed by JetBrains directly, making it a trusted option for teams with strict compliance or vendor requirements. For developers already paying for JetBrains All Products subscriptions, Junie adds powerful AI agentics at minimal incremental cost.
Pricing
Junie is powered by the JetBrains AI service. Plans include: AI Free (limited monthly quota, available in IDEs 2025.1+); AI Pro (~$10/month — covers most everyday use); AI Ultimate (~$30/month — higher quota for power users and Junie-heavy workflows). Prices are subject to change. Check official pricing →
What Users Are Saying
JetBrains developers have praised Junie for enabling true delegation of coding tasks within their familiar IDE. Community feedback notes its strength on complex multi-file refactors and test generation. Some users report credit consumption can be fast on intensive agentic sessions and recommend monitoring quota usage carefully.
FAQ
Is Junie free?
Junie has a free AI quota tier available in JetBrains IDEs 2025.1 and later. For heavier use, paid plans start at around $10/month for AI Pro.
Does Junie work with VS Code?
No — Junie is a JetBrains-exclusive feature. It requires a JetBrains IDE (IntelliJ, PyCharm, WebStorm, etc.) to run.
How does Junie compare to Windsurf?
Windsurf is a standalone AI IDE built on VS Code, while Junie is a native agentic AI feature inside JetBrains IDEs. Junie uses Claude 3.7 Sonnet for agentic tasks and integrates with JetBrains' debugging, refactoring, and test-running tools. Windsurf offers its own Cascade model and an independent editor experience.
