AI for Developers
Codename Goose logo

Best Codename Goose alternatives

5 tools developers use instead of Codename Goose, ranked by popularity. 5 offer a free plan and 3 are open source. Updated October 2026.

Free Open source Showing 1–5 of 5
  1. Claude Code logo

    Claude Code

    Free plan

    Anthropic's agentic coding tool, running in the terminal, IDE, desktop app, and browser, reading your codebase and editing files with explicit approval.

  2. OpenAI Codex logo

    OpenAI Codex

    Free plan

    OpenAI's cloud-based autonomous coding agent, powered by the GPT-5 family, reading a codebase and opening pull requests from written instructions.

  3. Aider logo

    Aider

    Free Open source

    Open-source, git-aware AI pair programmer that runs in your terminal. Same project as "Aider Chat" elsewhere in this directory, now maintained at Aider-AI/aider.

  4. OpenCode logo

    OpenCode

    Free Open source

    Open-source terminal coding agent with a TUI that works with any model provider, including local models, and supports LSP, MCP and custom agents.

  5. Gemini CLI logo

    Gemini CLI

    Free Open source

    Google's open-source terminal coding agent built on Gemini models with a 1M-token context window. Shut down for free consumer accounts June 18, 2026.