Alternatives to GitHub Copilot

an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM

Goose is Block's (Square's) open-source AI coding agent — not an autocomplete tool like Copilot, but a full autonomous agent that can plan, build, test, and debug entire features. Think Claude Code but model-agnostic: use Claude for complex work, GPT-4o for routine tasks, or a local Ollama model for private code, all in the same session.

Visual Studio Code

VS Code won. It's the most popular code editor in the world and it's not close.