Why DevoxxGenie — Free, Private, Multi-Provider AI for IntelliJ IDEA
DevoxxGenie is a free, open-source LLM code assistant plugin for IntelliJ IDEA. It works with any LLM provider — local or cloud — using your own API keys. No subscriptions, no lock-in, no code sent anywhere you didn't choose.
The Key Differences
1. It's Completely Free
DevoxxGenie itself costs nothing. The BYOK (Bring Your Own Keys) model means you connect your existing LLM accounts — OpenAI, Anthropic, Google, Mistral, and more — or run local models for zero API cost.
| DevoxxGenie | GitHub Copilot | Cursor | JetBrains AI Assistant | |
|---|---|---|---|---|
| Plugin cost | Free | $10–$19/month | $20/month | Free tier / $10/month subscription |
| Model cost | Pay per use (or free with local models) | Included | Included | Credit-based (cloud) / Free (local) |
| Open source | Yes | No | No | No |
| Local model support | Yes (Ollama, LM Studio, GPT4All, Llama.cpp, Jan, and more) | Yes (via Ollama) | Yes (via Ollama) | Yes (via Ollama, LM Studio) |
| Custom model endpoint | Yes | Limited | Limited | Limited |
| Multi-provider support | Yes (20+ providers) | Limited | Limited | Limited |
| Subscription required | No | Yes | Yes | No (free tier available) |
2. Your Code Stays Private — If You Want It To
With local model support via Ollama, LM Studio, GPT4All, and others, your code never leaves your machine. There are no telemetry calls to third-party servers from DevoxxGenie itself — you control exactly which LLM receives your prompts.
This matters for:
- Enterprise codebases with IP sensitivity
- Regulated industries where data residency is required
- Developers who simply prefer not to share their code with cloud providers
3. You're Not Locked Into One LLM Provider
Copilot uses GPT-4o. Cursor uses Claude and GPT-4. JetBrains AI Assistant uses a single provider. DevoxxGenie works with all of them — plus dozens more:
Cloud providers: OpenAI, Anthropic (Claude), Google Gemini, Grok (xAI), Mistral, Groq, DeepInfra, DeepSeek, Kimi (Moonshot AI), GLM (Zhipu AI), OpenRouter, Azure OpenAI, Amazon Bedrock
Local providers: Ollama, LM Studio, GPT4All, Llama.cpp, Jan, any OpenAI-compatible endpoint
Switch models mid-conversation. Use different models for different tasks. Assign specific models to sub-agents. The choice is always yours.
4. It Does More Than Chat and Autocomplete
Most AI coding tools offer chat + inline completion. DevoxxGenie goes further:
- Agent Mode: The LLM autonomously reads, edits, and searches your codebase using built-in tools — no manual copy-paste required
- Spec-driven Development: Define structured task specs with acceptance criteria; the agent implements them and checks off criteria as it works
- MCP Support: Connect the LLM to external tools — databases, browsers, APIs — via the Model Context Protocol marketplace
- Parallel Sub-Agents: Spawn multiple read-only AI agents concurrently to investigate different parts of your codebase
- CLI/ACP Runners: Use your existing Claude Code, Copilot CLI, or Gemini CLI subscriptions directly from IntelliJ
5. It's Open Source
The full source code is on GitHub. You can audit it, fork it, and contribute to it. Issues are tracked publicly. There are no black-box telemetry calls or unexplained network requests.
When to Choose DevoxxGenie
DevoxxGenie is a great fit if you:
- Want AI assistance without a monthly subscription (especially if you already pay for OpenAI or Anthropic API access)
- Need to keep code on-premise for compliance or privacy reasons
- Want to experiment with different LLMs without switching tools
- Work on a Java/Kotlin project in IntelliJ IDEA (the plugin has deep JVM language support)
- Are building agentic workflows and need structured spec execution beyond simple chat
When Other Tools Might Fit Better
DevoxxGenie focuses on IntelliJ-family IDEs. If you use VS Code or Neovim, or if you want a fully managed experience where you never think about model selection, tools like GitHub Copilot, Cursor, or JetBrains AI Assistant may be a better starting point.
Getting Started
Install DevoxxGenie from the JetBrains Marketplace — it takes about 30 seconds. Then follow the Installation Guide to connect your first LLM provider.
If you want a zero-cost, zero-privacy-compromise setup, start with the Ollama guide.