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OpenCode

Open-source alternative to Claude Code, GitHub Copilot

OpenCode is an open-source alternative to Claude Code and GitHub Copilot. It is an AI coding agent that runs in the terminal, works with multiple model providers, and offers build and plan modes plus code review. It is built for developers who want an AI assistant inside their command-line workflow.

Best for: Developers who want a terminal-based AI coding assistant.

Key features

  • AI coding agent that runs in the terminal
  • Multi-provider model support
  • Build and plan modes with code review

Before you switch

Developer tools live or die by their community. Before switching, glance at recent commit activity, open issues, and documentation quality — a healthy project answers questions quickly. Most open-source dev tools install with a single command and play well with existing workflows, so you can trial one alongside your current stack. If your team depends on it daily, check the release cadence and whether commercial support is available.

Like every project on OpenShelf, OpenCode is developed in the open — you can read the code, follow development, and even contribute. Check the system requirements and the project’s own documentation linked on this page before installing.