Cline is an open-source AI coding assistant for VS Code that features dual Plan/Act modes, terminal execution capabilities, and the Model Context Protocol (MCP) for custom tool creation. It serves as a fully collaborative AI partner for developers.

How is Cline different from GitHub Copilot?

Cline is open-source and offers unique features like Plan/Act modes for structured development, terminal command execution, browser automation for testing, and the Model Context Protocol (MCP) for creating custom development tools.

What programming languages does Cline support?

Cline supports all major programming languages and frameworks through its AI models and can execute terminal commands, edit files, and automate browser testing across different technology stacks.

TheCollaborativeAI Coder

1.1M

38.2k

Elevate your engineering teams with a fully collaborative AI partner that's open source, fully extensible, and designed to amplify developer impact.

Install Cline

38.2k GitHub Stars

🎉1 Million Installs! Thank You Devs🎉

🎉Thanking the Dev Community for 1 Million Installs!🎉

Helping Teams Ship 10x Faster

1.1Minstallations

38.2kstars

One of the most important extensions for any IDE out there - has been a game changer for how I work over the past few months. I'm extremely grateful to the Cline team for the work they're putting in to push out meaningful features.

Doug

2/12/2025

Amazing

Shoriful

2/11/2025

Feels like magic - the first AI tool I used that could handle entire repos

Pete

2/9/2025

I've been using Cline since the first month it was released and can't live without it anymore! It's the smartest coding agent I've used for my type of work. This is just an amazing tool that I believe any developer should be using!

Mohamed

2/9/2025

Without a doubt the single greatest boost to my coding productivty, ever. Being able to explore new ideas and test innovative solutions in a fraction of the time has been invaluable to every project that has used Cline. I could not reccomend Cline any more than I do.

Kevin

1/24/2025

One of the best out there. Thank you for making this! 10X

Rob

1/17/2025

There is nothing else like this (except forks of this). The best automated coder world-over. Get it, let it help you build.

Mike

1/12/2025

As a developer who has tried numerous AI coding assistants, I can confidently say that Cline stands in a league of its own. This autonomous coding agent, integrated directly into my IDE, has fundamentally transformed how I approach software development.

Christopher

1/12/2025

It's an amazing tool that has completely changed the way I code.

Matt

1/12/2025

Cline has completely transformed the way I work as a developer. It's like having a highly skilled coding assistant available 24/7 right within my IDE. From generating and editing files to executing terminal commands and even debugging with headless browser capabilities, it handles everything with precision and ease.

Derrick

1/7/2025

Doug

2/12/2025

Amazing

Shoriful

2/11/2025

Feels like magic - the first AI tool I used that could handle entire repos

Pete

2/9/2025

Mohamed

2/9/2025

Kevin

1/24/2025

One of the best out there. Thank you for making this! 10X

Rob

1/17/2025

There is nothing else like this (except forks of this). The best automated coder world-over. Get it, let it help you build.

Mike

1/12/2025

Christopher

1/12/2025

It's an amazing tool that has completely changed the way I code.

Matt

1/12/2025

Derrick

1/7/2025

Why Cline is Different

Experience an AI development partner that amplifies your engineering capabilities

Collaborative

Cline isn't just an autonomous agent—it's your AI partner

Partners with you to create a thoughtful plan before taking action

Explains its reasoning and approach, asking for your input

Breaks down complex tasks step by step, clarifying the entire plan

Does a Lot More Than Coding

Cline is more than a code generator—it's your partner in streamlining your development workflow

Keeps an eye on your environment—from terminals and files to error logs—for smooth progress

Extends your reach with MCP Servers integration, connecting you to external databases and live docs

Automatically detects issues and applies fixes, letting you focus on innovation

Safe for Work

Cline is engineered for enterprise-level security and privacy

Access top-tier models via AWS Bedrock, GCP Vertex, or Azure endpoints while keeping your code secure

Integrate your existing and external codebases seamlessly through MCP

Rest easy—Cline never tracks or stores your data

And it's fully open-source.

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

Download VSCode

Set Up Cline

Create Your Cline Account

Step 1 of 3

Built Thoughtfully

Open source, transparent, and always under your control

Open Source & Instant Access

100% transparent codebase with instant access to frontier AI models. Start with free credits, no credit card needed.

Open source on GitHub with active community

Access to Claude 3.5-Sonnet, DeepSeek Chat, and Gemini 2.0 Flash

Manage credits easily through your Cline account

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

Latest from Our Blog

Updates and insights from the Cline team on AI, coding, and developer tools.

Cline 3.8.0: Workflow Integration, Account Management, and Provider Optimization

Nick Baumann•March 23, 2025

Here's what's new in 3.8.0: * Streamlined workflows: New 'Add to Cline' and 'Fix with Cline' code actions for faster problem-solving * Account view: Track billing and usage history for Cline accounts directly in the extension * Sort underlying provider routing: Choose how Cline routes API requests based on throughput, price, or latency to optimize for your specific needs * Rich MCP display improvements: Visualize data more effectively with dynamic image loading and GIF support directly in y

1,000,000 installs—and our all-in bet on the future of software engineering

Nick Baumann•March 22, 2025

From the jump, we've envisioned a bolder path forward in AI coding. While others perfect tab autocomplete, we've been building a truly collaborative coding agent that transforms how software gets created. From day one, we've given engineers full, unrestricted access to frontier models—exactly as they were designed to be used. No context limitations, no artificial constraints to fit subscription economics. This is AI coding in its purest form. What does this mean in practice? Cline reads entire

How Cline Creates Compound Productivity for Engineering Teams

Nik Pash•March 21, 2025

Picture this: Your senior engineers spending most of their time on high-level architecture instead of debugging nested loops. Your new hires becoming productive in days instead of months. Your entire team shipping more code with fewer bugs while actually leaving work feeling energized instead of burnt out. Sound like fantasy? It's not. It's what happens when you put a senior engineer in everyone's back pocket. I've been watching engineering teams using Cline (our autonomous coding agent for VS

View all posts

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

Create your Cline account to get instant access to frontier AI models:

Anthropic Claude 3.7 Sonnet (recommended for coding)
DeepSeek Chat (cost-effective alternative)
Google Gemini 2.0 Flash

New users start with free credits - no credit card needed.

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..."

View all FAQs

Join Our Community

Join a community dedicated to thoughtful coding practices and elevate your craft alongside like-minded developers.

Discord15.3k members Join r/cline