Reviewed by Harsh Desai · Last reviewed:
Roo Code
A free open-source AI coding companion in VS Code that works with any AI model you pick
Best for
Roo Code is a free, open-source AI coding companion that runs inside Visual Studio Code as an extension, letting you bring your own AI provider (Claude, GPT, Gemini, OpenRouter, local Ollama, and 12+ others) without paying any subscription to Roo Code itself. The project is Apache 2.0 licensed and now community-maintained after a public handoff from Roo Code, Inc. in early 2026.
The biggest pull for non-technical builders is the mode system. Instead of one general chat box, Roo Code ships specialized agents you switch between for different jobs: Code mode generates and edits files, Architect mode plans the structure of a project before writing anything, Debug mode walks through stack traces, Test mode writes and runs test suites, and Ask mode answers questions without touching files.
Features:
- •Mode-Switching Workflow Switch between Code, Architect, Debug, Test, and Ask modes inside a single sidebar, each tuned for a specific task.
- •Bring Your Own Model Connect to Anthropic, OpenAI, Google Gemini, xAI, OpenRouter, Cerebras, Groq, Mistral, Ollama (local), and others.
- •Massive Adoption 1.55M+ installs on the VS Code Marketplace and 23,000+ GitHub stars put Roo Code in the same league as Cline and Cursor.
- •Multi-File Editing Read, write, and refactor across many files in one task; Roo Code holds the project context, you just describe the change.
- •Terminal Command Execution Approve and run shell commands from inside the editor, with permission prompts so nothing surprises you.
- •Browser Automation Built-in browser tool lets the agent open pages, click, fill forms, and check rendering output during debugging.
- •CLI Companion Optional command-line interface for running Roo Code outside VS Code, useful for automation scripts and CI workflows.
- •Custom Instructions Per Mode Pin your own coding rules, style guides, or project-specific instructions to each mode separately.
- •Local-First Permission Model Code stays on your machine unless you explicitly send it to an external API; every external call asks first.
Pricing:
- •Free Forever Roo Code is Apache 2.0 licensed with no subscription, seat fees, or usage caps imposed by Roo Code itself.
- •You Pay Your AI Provider Bring your own API key from Claude, GPT, Gemini, OpenRouter, or any supported service.
- •Zero-Cost Option Run a local model through Ollama or LM Studio and your total cost is zero.
Limitations:
- •VS Code only no support for JetBrains, Cursor, or standalone use, so JetBrains-shop developers will need a different tool.
- •BYOK setup required first-time users must create a developer account, generate an API key, and paste it into VS Code settings before anything works.
- •Less polished UI than commercial alternatives Roo Code prioritises configurability over hand-holding, so the sidebar can feel dense for first-time users.
- •Community-maintained as of 2026 original Roo Code, Inc. handed the project to a community team in early 2026, so release cadence depends on volunteer time rather than a funded company.
Our Verdict
Roo Code earns 8.2/10 in 2026 because it nails open-source flexibility better than any commercial alternative, but VS Code-only and BYOK setup keep it out of the top tier for non-technical builders.
For the Basic User, this is probably not the right starting tool unless someone helps you set it up. The BYOK model means you'll need to create a developer account at a model provider, generate an API key, paste it into VS Code settings, and pick a model: that's three more setup steps than Cursor or Lovable, and one wrong key blocks the whole experience. Worth bookmarking for later, once you're comfortable in VS Code.
For the Vibe Builder, Roo Code is a strong pick if you already use VS Code. The mode system means you don't have to learn prompting tricks, you just switch to Architect when planning, Code when building, Debug when stuck. Plus, you can start with a free local model through Ollama before paying any provider, which keeps your tool budget at zero while you figure out which AI you actually like.
For the Developer, Roo Code is the closest thing to "Cursor without the lock-in": Apache 2.0 license, BYOK, custom mode prompts, terminal access, and a CLI for CI use. The lack of agentic background tasks (vs Cline's auto mode) is the main gap, but the mode-switching UX is more disciplined and predictable.
Skip it if you want a single subscription with zero setup, in which case consider Cursor for the smoother out-of-the-box experience, or try Cline if you want one always-on agent rather than five specialised modes.
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Frequently Asked Questions
Is Roo Code free to use?
Yes. Roo Code is free to install from the VS Code Marketplace. You only pay for LLM provider usage through providers like OpenRouter, Anthropic, or OpenAI. No subscription or per-seat fees from Roo Code, Inc.
Should I choose Roo Code or Cline?
Choose Roo Code if you want the latest quality-of-life features and rapid iteration. Choose Cline if you prefer a more established, stable baseline with a larger community. Both are free VS Code extensions with BYOK pricing.
Can Vibe Builders use Roo Code?
Yes, provided you have VS Code installed. Roo Code's Code mode generates functional components from descriptions, so you do not need to write every line manually. The mode system also keeps the AI focused on one task at a time, which reduces hallucinated edits.
Does Roo Code work with local models?
Yes. Roo Code is model-agnostic and supports local models via Ollama or LM Studio. This lets you run AI coding tasks at zero cost and without sending any code to the cloud, which is useful for privacy-sensitive projects or offline development.
What makes Roo Code different from GitHub Copilot?
Roo Code is an autonomous agent that performs multi-step tasks and file operations. GitHub Copilot is primarily a code-completion and chat assistant. Roo Code plans, writes, and debugs across files; Copilot suggests inline code as you type.
What is Roo Code?
Roo Code is A free open-source AI coding companion in VS Code that works with any AI model you pick.
Who should use Roo Code?
Roo Code is built for vibe builders who want AI to handle the technical work and everyday users who need simple AI-powered tools. Common use cases include code-generation, debugging, architectural-planning, vibe-coding, react-development, full-stack-prototyping, local-ai-inference, model-switching.
What are the best alternatives to Roo Code?
Popular alternatives to Roo Code include Claude Code, Cursor, Windsurf. Compare features and pricing in our Coding directory to compare options.
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Roo Code
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