An IDE-first AI copilot for IntelliJ IDEA with chat, diagnostics, and project-aware insights.
UltraCodeAI is an IntelliJ IDEA plugin that embeds an AI coding copilot directly in the IDE:
- Multi-model chat with streaming responses
- Real‑time Diagnostics tab powered by IntelliJ inspections
- Project‑aware Insights (RAG-ready structure)
- One clean, native, tabbed tool window: Chat • Diagnostics • Insights
It works with both local models (privacy-first) and cloud models (frontier capabilities), and is built 100% in Java for deep IntelliJ integration.
| Feature | Description |
|---|---|
| 🤖 Unified Chat UI | A single, tabbed interface for AI chat, code diagnostics, and project insights. No more cluttered windows. |
| 🔌 Multi-LLM Support | Connect to local LLMs for privacy or cloud LLMs for power. Switch between them effortlessly. |
| ⚡ Streaming Responses | Get token-by-token responses for a real-time, interactive chat experience. |
| 🔍 Live Code Diagnostics | The "Diagnostics" tab automatically analyzes your open file, providing AI-powered explanations and fixes for errors and warnings. |
| 💡 Hover-to-Explain | Simply hover over any piece of code—a variable, function, or class—to get an instant AI-generated explanation. |
| 🧠 Context-Aware Prompts | Easily add files, directories, or code snippets to your prompt context. The AI knows what you're working on. |
| 🛠️ RAG-Enhanced Insights | Built with a Retrieval-Augmented Generation architecture to provide project-aware insights and more accurate answers. |
| 🎨 Native Look & Feel | A beautiful UI built with JetBrains Swing components that respects your IDE theme and feels like a part of IntelliJ. |
UltraCodeAI 📂/
├── .gradle 📂/
├── .idea 📂/
├── gradle 📂/
├── src 📂/
│ ├── main 📂/
│ │ ├── java 📂/
│ │ │ └── com 📂/
│ │ │ └── ultracodeai/
│ │ │ ├── action/ # IntelliJ actions (e.g., menu items, toolbar buttons)
│ │ │ ├── ui/
│ │ │ │ ├── toolwindow/ # UI for tool windows
│ │ │ │ ├── panel/ # Reusable UI panels
│ │ │ │ ├── settings/ # Settings UI
│ │ │ │ └── component/ # Reusable UI components
│ │ │ ├── service/ # Core business logic
│ │ │ │ ├── chatmodel/ # Abstraction for AI providers (e.g., OpenAI, Ollama)
│ │ │ │ ├── prompt/ # Prompt generation & execution
│ │ │ │ ├── diagnostics/ # Live analysis services
│ │ │ │ ├── rag/ # Retrieval Augmented Generation services
│ │ │ │ └── util/ # General utility classes
│ │ │ ├── listener/ # Event listeners
│ │ │ └── model/ # Data models
│ │ └── resources 📂/
│ │ ├── META-INF/
│ │ │ └── plugin.xml # Plugin descriptor file
│ │ └── icons/ # Plugin icons
│ └── test 📂/
│ └── java/
│ └── com/
│ └── ultracodeai/
├── build.gradle # Gradle build script
└── README.md # Project README fileFrom source:
git clone [https://github.com/vishnupriyanpr/UltraCodeAI.git](https://github.com/vishnupriyanpr/UltraCodeAI.git)
cd UltraCodeAI
./gradlew buildPluginInstall into IDE:
- Open IntelliJ → Settings → Plugins → Install from Disk
- Select zip from
build/distributions/Dev run:
./gradlew clean
./gradlew buildPluginRequirements:
- IntelliJ IDEA 2023.3.4+ recommended
- Java 17+
- Settings: UltraCodeAI → provider selection (local/cloud) → API keys → appearance/cost/context preferences → MCP/Web Search/RAG toggles
- Access: : View → Tool Windows → UltraCodeAI
Chat: Open tool window → type prompt + code context → real-time streaming
Context: Right-click files → "Add To Conversation" → directory/token calculation
Diagnostics: Auto-populate from IntelliJ analyzer → click navigation
Insights: RAG-powered contextual recommendations
UltraCodeAIToolWindowFactory:** 3-tab UI + Chat send-button →PromptExecutionService.executePrompt()PromptExecutionService: Command processing → strategy selection → execution → cancellation → cleanupResponseListener:**onTokenReceived+onCompleteinterfaceUltraCodeAIDiagnosticsService: IntelliJ daemon analyzer → Diagnostics tab callback
Providers: Custom local/cloud services (chatmodel/) - Strategies: New PromptExecutionStrategy variants - RAG: Indexer/retriever for Insights - WebView: JCEF/HTML+Prism rendering - Actions: Editor/project context integration
Click-navigate diagnostics - AI fix suggestions - Rich JCEF chat rendering - Provider presets - Smart model recommendations - Full RAG + local embeddings
PRs welcome! Suggested flow:
- Fork and branch:
feature/<name> - Code + tests
./gradlew buildPlugin- Open PR with a clear description and screenshots/GIFs for UI changes shrink it to 3topics and give me it into 3 topiccs
MitLicense-2.0 (see LICENSE in the repo)
This project is crafted with passion by MeshMinds. We are deeply grateful to our core contributors who poured their expertise and dedication into building UltraCodeAI from the ground up.
Vishnupriyan P R |
Sanjit M |
Vivek K K |
Akshaya K |
Crafted with passion and Java by the MeshMinds team