Cline is an open-source AI coding agent designed for developers who want powerful automation without compromising security or control. With over 5 million installs across Visual Studio Code, JetBrains IDEs, and CLI environments, it brings intelligent coding assistance to your workflow.

Key capabilities include:

Plan/Act modes - Cline plans changes before editing, asks clarifying questions when needed, and shows every modification before deployment
MCP integration - Connect to Model Context Protocol for extended functionality and custom tools
Terminal-first workflows - Use Cline CLI for scripted automation, CI/CD pipelines, and command-line development
Multi-model support - Optimized prompting for Anthropic Claude, OpenAI, Google Gemini, xAI, and open-source models
Enterprise security - Client-side architecture means your code and prompts never pass through Cline's servers

Use cases span understanding codebases, refactoring large projects while maintaining consistency, and automating recurring development tasks. The collaborative design lets you maintain full control—approve changes before they ship or grant autonomous permissions for larger operations.

With 250+ contributors and 50k GitHub stars, Cline is built by and for the developer community. Deploy on your infrastructure, connect to your inference provider, and keep data within your security perimeter.