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Cline

Autonomous AI coding agent in VS Code — open source

🏆 Best Value🛡️ Max Trust🇪🇺 EU Option🔓 Open Source

Code & Development Free ★★★★☆ 4.4/5 WEB

code open-source vscode assistant

Cline is the most popular open-source AI coding agent for VS Code. Plan/Act modes, full MCP support, human-in-the-loop diff view and BYOK model flexibility.

Cline is an artificial intelligence tool in the Code & Development category, developed by Cline and launched in 2024. Cline is the most popular open-source AI coding agent for VS Code. Plan/Act modes, full MCP support, human-in-the-loop diff view and BYOK model flexibility. Key features include: Autonomous VS Code/JetBrains agent, Plan/Act modes, Full MCP support, Diff view with human-in-the-loop, Compatible with all LLMs (OpenRouter, Anthropic, OpenAI, Ollama), Cline CLI. The tool is available on web with a free pricing model.

🔗 Visit Cline 📂 See all Code & Development tools

💰 Pricing

Free — Free and open-source (BYOK) · Teams: free (Q1 2026) · Enterprise: custom

✨ Features

Autonomous VS Code/JetBrains agent

Plan/Act modes

Full MCP support

Diff view with human-in-the-loop

Compatible with all LLMs (OpenRouter, Anthropic, OpenAI, Ollama)

Cline CLI

API cost tracking

Enterprise (SSO, audit trails, VPC)

🎯 Use Cases

Coding assistance
Refactoring
Debugging
Codebase exploration

⚖️ Pros & Cons

👍 Pros

The most popular open-source VS Code coding agent — largest community in its category
Plan/Act modes let you choose between strategic planning and direct execution
Full MCP support enables integration with any tool ecosystem
Human-in-the-loop diff view gives you approval control over every change
BYOK model means zero vendor lock-in — use any LLM provider

👎 Cons

BYOK requires managing API keys and understanding model pricing
Variable API costs make budgeting unpredictable for autonomous tasks
Extension-based — lacks the deep IDE integration of Cursor or Windsurf

🏆 Verdict

Cline is the most democratic AI coding agent — open-source, BYOK, and trusted by a massive developer community. The Plan/Act modes and human-in-the-loop approach offer the perfect balance between AI autonomy and developer control. The trade-off is setup complexity and variable costs.

In summary, Cline stands out in the code & development AI landscape thanks to its strengths: the most popular open-source vs code coding agent — largest community in its category, plan/act modes let you choose between strategic planning and direct execution, full mcp support enables integration with any tool ecosystem. However, some users note: byok requires managing api keys and understanding model pricing, variable api costs make budgeting unpredictable for autonomous tasks. If you're looking for alternatives, you can compare Cline with OpenAI Codex CLI, Cursor, Windsurf. Our overall rating: 4.4/5.

ℹ️ Information

Company	Cline
Launched	2024
Platforms	WEB
Category	Code & Development
Site	https://cline.bot

🔄 Alternatives

💻

OpenAI Codex CLI

OpenAI's open-source AI coding agent for the terminal

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Cursor

The AI-powered IDE that transforms the way you code

🏄

Windsurf

The agentic AI IDE with the best value for money

❓ Frequently Asked Questions

What is Cline?

Cline is autonomous AI coding agent in VS Code — open source. Cline is the most popular open-source AI coding agent for VS Code. Plan/Act modes, full MCP support, human-in-the-loop diff view and BYOK model flexibility.

Is Cline free?

The pricing model for Cline is: free. Free and open-source (BYOK) · Teams: free (Q1 2026) · Enterprise: custom

What are the alternatives to Cline?

What are the alternatives to Cline : OpenAI Codex CLI, Cursor, Windsurf.