Alternatives to ForgeCode

An open-source AI coding harness that runs inside your ZSH terminal and uses multiple models and sub-agents. The listings below can replace it for an important use case. Each note says what changes if you switch.

The original

Replacements

Listings that take over the same core job as ForgeCode.

  • Claude Code

    Agentic coding tool that reads a codebase, edits files and runs commands.

    Claude Code is a closed-source agent that runs in any terminal plus IDEs, desktop and web, but it needs a paid Claude plan or API credits.

  • OpenCode

    Work with an AI coding assistant from your terminal.

    OpenCode is a free MIT-licensed terminal assistant supporting multiple model providers on Windows, macOS and Linux, without being built around ZSH or separate hosted services.

  • Gemini CLI

    Google's open source AI agent for the terminal, powered by Gemini.

    Gemini CLI is Google's Apache-licensed terminal agent with a free tier, but it requires Google authentication and depends on Gemini cloud models rather than multiple models.

  • Aider

    AI pair programming in a terminal, working directly on your git repository and committing as it goes.

    Aider is an Apache-licensed terminal pair programmer that commits every change to git and runs your linters and tests, though its repository activity has slowed since 2025.

  • Crush

    Terminal coding agent that works with whichever large language model you point it at.

    Crush is an MIT-licensed terminal agent that also lets you switch models mid-session and pulls context from language servers, and it works in any shell, including Android.

  • Qwen Code

    An open-source command-line AI coding agent that runs in your terminal and is tuned for Qwen models.

    Qwen Code is an open-source terminal agent tuned for Qwen coder models, working in any terminal instead of integrating specifically with ZSH.

  • Codebuff

    Terminal-based AI coding agent that edits your codebase and runs commands from natural-language instructions.

    Codebuff is a freemium, closed-source terminal agent installed with npm that indexes your codebase before edits, and its pricing is not shown on the homepage.

  • gptme

    An open-source AI agent for the terminal that writes code, runs shell commands and browses the web.

    gptme is an open-source terminal agent that also browses the web and offers a web UI, designed as an extensible base for building your own agent.

Similar software

Related functionality, not a direct replacement.