Roo Code

Overview

Roo Code is an open-source AI coding assistant extension for VS Code that provides intelligent code completion, chat, and refactoring capabilities. It supports multiple AI models including Claude, GPT, and local models, giving developers flexibility in choosing their preferred AI provider.

Roo Code emphasizes privacy and flexibility, allowing users to use their preferred AI provider or run models locally for complete data privacy.

Features

• Open-source and free — No cost, fully transparent code
• Multi-model support — Claude, GPT, Gemini, local models
• Code completion — Intelligent inline suggestions
• Chat interface — Context-aware AI chat
• Context awareness — Project-wide understanding
• Self-hosted options — Run with local models for privacy

Installation

Install from the VS Code Marketplace:

1. Open VS Code
2. Go to Extensions (Ctrl+Shift+X)
3. Search for "Roo Code"
4. Click Install

Quick Start

1. Install the extension
2. Configure your preferred AI provider in settings
3. Start coding with AI assistance
4. Use the chat panel for questions

Configuration

{
  "roo-code.provider": "anthropic",
  "roo-code.apiKey": "your-api-key",
  "roo-code.model": "claude-3-5-sonnet"
}

Core Concepts

Model Flexibility

Roo Code supports multiple AI providers:

• Anthropic Claude — Best for complex reasoning
• OpenAI GPT — Wide compatibility
• Google Gemini — Good value option
• Local models — Complete privacy with Ollama, LM Studio

Privacy Focus

For sensitive codebases, Roo Code can run entirely locally:

{
  "roo-code.provider": "ollama",
  "roo-code.model": "codellama:7b"
}

Examples

Code Completion

As you type, Roo Code provides intelligent suggestions. Press Tab to accept.

Chat with Context

@workspace How do I add authentication to this Express app?

Pros

• ✅ Completely free and open-source
• ✅ Flexible model selection
• ✅ Self-hosted options for privacy
• ✅ Active community development
• ✅ Works with existing VS Code setup
• ✅ No vendor lock-in

Cons

• ❌ Less polished than commercial alternatives
• ❌ Smaller community
• ❌ Requires manual configuration
• ❌ Fewer integrations than paid tools

Use Cases

Use Case	Why Roo Code
Free AI Assistance	Zero-cost alternative to commercial tools
Privacy-focused Coding	Run locally with no data leaving your machine
Model Flexibility	Switch between Claude, GPT, Gemini, or local models
VS Code Workflow	Seamless integration with existing VS Code setup
Open-source Preference	Transparent code, no vendor lock-in

Comparison with Alternatives

Feature	Roo Code	Cursor	Copilot	Codeium
Cost	Free	Freemium	Paid	Freemium
Open Source	✅ Yes	❌ No	❌ No	❌ No
Local Models	✅ Yes	⚠️ Limited	❌ No	❌ No
Multi-provider	✅ Yes	✅ Yes	❌ OpenAI	⚠️ Limited
VS Code Native	✅ Yes	❌ Fork	✅ Yes	✅ Yes
Privacy	✅ Excellent	⚠️ Cloud	⚠️ Cloud	⚠️ Cloud
Learning Curve	Low	Low	Low	Low
Best for	Privacy, free users	Daily coding	Enterprise	Budget users

Best Practices

1. Configure provider first — Set up your preferred AI provider before coding
2. Use local models for privacy — Run with Ollama for complete data control
3. Leverage context awareness — Use @workspace for project-wide questions
4. Accept suggestions carefully — Review all AI-generated code before accepting
5. Use chat for complex questions — Chat panel provides deeper context
6. Keep extension updated — Regular updates bring new features and fixes

Troubleshooting

Issue	Solution
Completion not working	Check provider API key and model configuration
Chat not responding	Verify model is available and API is accessible
Slow suggestions	Try smaller local model or reduce context size
Extension conflicts	Disable other AI extensions to avoid conflicts
Local model fails	Ensure Ollama/LM Studio is running and model downloaded

Resources

• GitHub Repository
• Documentation
• VS Code Marketplace