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Cline is an open-source AI coding agent for VS Code, Cursor, JetBrains, and the terminal. It gives you direct, transparent access to frontier AI models with no black boxes, no model lock-in, and no surprises. Every file change and terminal command requires your approval.

Install Cline

Add Cline to VS Code, Cursor, JetBrains, or install the CLI

Pick Your Model

Connect Anthropic, OpenAI, Google Gemini, or any supported provider

Your First Project

Walk through your first task with Cline step by step

Core Workflows

Learn Plan & Act, checkpoints, file references, and commands

What Cline can do

Read and write files

Navigate your codebase, create new files, and make targeted edits. Every change is shown as a diff for your review before it’s applied.

Run terminal commands

Execute shell commands, run tests, install packages, and monitor output in real time.

Use a browser

Launch a headless browser to test web apps, capture screenshots, click elements, and debug runtime errors.

Connect external tools

Extend capabilities with MCP servers for databases, APIs, documentation, and more.

Any AI model

Use Claude, GPT-4, Gemini, DeepSeek, local Ollama models, or any OpenAI-compatible endpoint. Switch instantly.

Automate with CLI

Run Cline headlessly in CI/CD pipelines, scripts, and shell workflows with the Cline CLI.

Get started in minutes

1

Install the extension

Install Cline from the VS Code Marketplace or your IDE’s extension marketplace. See Installing Cline for all options.
2

Connect your AI provider

Add your API key from Anthropic, OpenRouter, OpenAI, or any supported provider. See Authorizing with Cline.
3

Start your first task

Open the Cline sidebar, describe what you want to build, and approve each step as Cline works through it.

Why Cline

  • Transparent by default — Watch every file read, every decision considered, every token used. Nothing happens without your approval.
  • Any model, any provider — Use Claude, GPT-4o, Gemini, DeepSeek, or local models. Switch instantly as new models launch.
  • Zero-trust architecture — Your code never touches Cline’s servers. Runs entirely client-side with your own API keys.
  • Open source — Apache 2.0 licensed. Every line of code on GitHub.
New to AI coding agents? Read What is Cline? to understand how Cline fits into your workflow.

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