JetBrains Junie vs MarsCode
JetBrains Junie
junie.jetbrains.comMarsCode
marscode.comSide by side
| Figure | JetBrains Junie | MarsCode |
|---|---|---|
| Price from | $8.33/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 4 | 6 |
| Spec score · AI Coding Assistants | 9.2 (#9) | 8.1 (#61) |
| Coding agent | Yes | Yes |
| Chat assistance | Yes | Yes |
| Codebase indexing | Yes | Yes |
| Free plan | Yes | Yes |
| Security | The product page says JetBrains tools adhere to security standards including SOC 2 certification. | The privacy policy says MarsCode maintains technical, administrative, and physical security measures designed to protect information from unauthorized access, theft, disclosure, modification, or loss. |
| Support | The Junie page links users to a Discord channel, GitHub, a contact form, and a support guide. | The community page offers direct support from the team and a place to submit suggestions and feedback. |
| Supported IDEs | IntelliJ IDEA Ultimate,PyCharm Pro,WebStorm,GoLand,IntelliJ IDEA Community,PhpStorm,RubyMine,RustRover,CLion,Rider,Android Studio | VS Code,JetBrains IDEs |
Plans
JetBrains Junie
- Free to StartFree
- AI Pro$8.33 a month
- AI Ultimate$25 a month
- Junie Lite / BYOKFree
MarsCode
- FreeFree
- LitePrice not published
- ProPrice not published
- Pro+Price not published
- UltraPrice not published
- FreeFree
In their own words
JetBrains Junie
JetBrains Junie is a coding agent for work in JetBrains IDEs, a terminal, or headless CI/CD scripts. It offers chat assistance, codebase indexing, terminal access, and agent mode. Advanced Plan Mode lays out requirements, design, and delivery stages before code changes; plans can be edited and committed in.junie/plans. Users can review key actions, and the CLI requests approval for sensitive actions unless brave mode is enabled or an action is allowed. Junie supports models from OpenAI, Anthropic, Google, and xAI, while the CLI can use provider API keys directly. Remote Control lets users monitor asynchronous CLI runs in a web app. Project guidelines, Agent Skills packages, and slash commands shared across CLI and IDE through ACP are also supported. The IDE plugin works with listed JetBrains IDEs and Android Studio. The CLI runs on Linux, macOS, and Windows, though sandbox mode is limited to macOS and Linux. Free to Start is free with five AI credits; paid plans start at $8.33 a month per user.