Cline is an open-source autonomous coding agent that runs as a VS Code extension, CLI assistant, or embedded SDK. It can create and edit files, run terminal commands, browse the web, and use tools — all with human-in-the-loop approval on every action, making agentic AI safe and transparent to explore.

Key Features

• Plan-and-Act agent — breaks complex software tasks into steps it can work through autonomously, then verifies the result before moving on
• Human-in-the-loop approval — every file change and terminal command asks for your permission first, giving you full control
• Bring-your-own-model — works with Anthropic, OpenAI, OpenRouter, AWS Bedrock, Vertex, Azure, and any provider, so there is no vendor lock-in
• Model Context Protocol (MCP) — can create new tools and extend its own capabilities via MCP servers
• Works across your editor and terminal — available as a VS Code extension, JetBrains plugin, terminal CLI, and Node.js SDK
• Web browsing and document access — reads pages and PDFs to gather context for your tasks

Why Use Cline?

Cline bridges the gap between autocomplete and fully autonomous multi-file coding. Because every change is approved in a GUI, it is a safe way to let an AI agent refactor projects, write tests, and run builds without abandoning control.

Use Cases

• Refactoring large codebases across many files with a clear plan
• Writing and running tests, then fixing the failures it finds
• Scaffolding new features, migrations, and project setups
• Embedding agentic coding into your own products via the SDK

Platform

VS Code · JetBrains · Terminal (CLI) · Web/Kanban board

Licence

Apache License 2.0 (free; you pay model providers directly or use optional Cline-hosted credits)

Website

cline.bot