Cline is thethoughtfulAI Coder
Build powerful full-stack applications with an AI partner that thinks before it codes. Open source, transparent, and powered by the models you choose.
Trusted by engineers at
Why Cline is Different
Experience an AI development partner that thinks, plans, and acts
Plans Then Acts
Cline breaks down your development into a plan before coding
Creates a thoughtful plan before taking action
Explains its reasoning and approach
Breaks down complex tasks step-by-step
Full Dev Environment Access
Cline has full access to your development environment for end-to-end task completion
Direct file creation and editing with diff views
Terminal command execution with real-time output monitoring
Access to Problems panel to fix errors as they arise
Extensible with Model Context Protocol (MCP)
Create custom tools that extend Cline's capabilities
Use Cline as your MCP server Client
Build MCP servers to add new capabilities
Create tools tailored to your specific workflow
Quick Setup Guide
Get started with Cline in minutes and begin building your next full-stack application. Open source and powered by the models you choose.
Getting Started with Cline
Follow these steps to get started with our VSCode extension
View Full Guide →Install VS Code
Download and install Visual Studio Code
You will use Cline from within VS Code
Launch VSCode after installation is complete
Set Up Cline
Configure OpenRouter
Step 1 of 3
Built Thoughtfully
Open source, transparent, and always under your control
Open Source & Your Choice of AI
100% transparent codebase with freedom to choose your preferred AI model. Bring your own API key and stay in control.
Open source on GitHub with active community
Support for OpenRouter, Anthropic, OpenAI, and more
Choose the model that works best for you
Safe, Controlled Development
Review every change and roll back anytime with our checkpoint system. No surprises, just controlled progress.
Review and approve changes before they happen
Checkpoint system for easy version comparison
Roll back to any previous state with one click
Common Questions
Get quick answers to the most common questions about using Cline.
- Open VS Code
- Click the Extensions icon in the Activity Bar
- Search for "Cline" and click Install
- Once installed, click the Cline icon or use CMD/CTRL + Shift + P
- Add an API key to start using Cline
Cline works with several providers:
- Anthropic Claude 3.5 Sonnet (recommended for coding)
- DeepSeek Chat (cost-effective alternative)
- Google Gemini 2.0 Flash (free)
- Any other model available available directly through the extension or through OpenRouter
Type your request in natural language—Cline understands plain English. For complex tasks:
- Start with your goal: "I want to build..."
- Provide context: "Here's what I have so far..."
- Ask for specific actions: "Can you help me..."
Join Our Community
Join a community dedicated to thoughtful coding practices and elevate your craft alongside like-minded developers.