Roo Code vs Aider

Detailed side-by-side comparison to help you choose the right tool

Roo Code

🔴Developer

AI Coding Assistant

Discontinued VS Code coding agent (shut down May 15, 2026). Known for custom "modes," per-mode MCP allow-lists, and Boomerang sub-agent tasks. Migrate to ZooCode or Cline.

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Starting Price

Custom
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Aider

🔴Developer

AI Coding Assistant

Open-source terminal coding agent that pairs with git, edits multiple files at once, and works with any leading LLM.

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Starting Price

Free
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Feature Comparison

Scroll horizontally to compare details.

FeatureRoo CodeAider
CategoryAI Coding AssistantAI Coding Assistant
Pricing Plans210 tiers14 tiers
Starting PriceFree
Key Features
  • • Custom "modes": Architect, Code, Ask, Debug, and custom roles with per-mode system prompts
  • • Per-mode MCP server allow-lists (Debug can call DevTools, Ask cannot)
  • • In-editor MCP marketplace and server templates
  • • Terminal-based AI pair programming
  • • Direct file editing with Git auto-commits
  • • Multi-model support (Claude, GPT-4o, DeepSeek, local)

Roo Code - Pros & Cons

Pros

  • ✓Open Apache 2.0 source is preserved — the interesting ideas (modes, per-mode MCP, Boomerang) live on
  • ✓Historical proof point for per-mode agent design that successor tools are now adopting
  • ✓BYOK meant no vendor lock-in for anyone who used it
  • ✓Aggressive MCP support led the industry in the 2025–2026 window
  • ✓Migration path is clear: ZooCode is a near drop-in replacement

Cons

  • ✗No longer maintained — do not adopt for new work in mid-2026 or later
  • ✗No official support channel beyond billing questions
  • ✗Any bugs, security issues, or breaking VS Code API changes will not be fixed by Roo Code, Inc.
  • ✗Community forks (ZooCode) inherit a large codebase that has to be understood before it can be extended
  • ✗Anyone with an active Enterprise contract needs a migration plan immediately

Aider - Pros & Cons

Pros

  • ✓Terminal-native coding with auto-generated git commits
  • ✓Multi-file edits with diff, whole-file, and unified-diff formats
  • ✓Model-agnostic BYOK across 20+ providers

Cons

  • ✗Requires comfort with a terminal, Git, and model API keys
  • ✗Model API charges and data handling depend on the provider the user selects
  • ✗Automatic commits are convenient but still require human review and tests

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