Cline

Cline is an open source autonomous coding agent that lives in your IDE. Features Plan and Act workflow modes where it devises a plan then executes step-by-step with your approval. Can read/edit files, run terminal commands, launch browsers, capture screenshots, and fix runtime errors. Supports MCP with a marketplace for extending capabilities. Works with any LLM provider including Anthropic, OpenAI, Google, OpenRouter, DeepSeek, Groq, AWS Bedrock, or local models via Ollama. 4M+ developers. No vendor lock-in — BYO API keys and pay only for inference.