Cline

Cline is a VS Code extension that gives an AI agent full access to your file system, terminal, and browser to autonomously complete multi-step coding tasks. It can read and write files, run shell commands, install packages, and interact with web pages — all with user approval gates at each step. Cline supports all major LLM providers including Claude, GPT-4, and local models via Ollama. It is open source, free to install, and pay-per-use through your own API keys.