Cline

Featured

Open-source VS Code coding agent with human-in-the-loop approval workflow.

Best for: Free and open source Not ideal for: Requires own API keys
Price Free
Free plan Yes
For Software developers
Level Beginner
Updated Mar 2026
Category AI Coding
01

Why choose Cline

Open-source autonomous coding agent that lives in your VS Code editor. Creates and edits files, runs terminal commands, uses browser, and handles multi-step tasks with human-in-the-loop approval for each action.

  • +Free and open source
  • +Human-in-the-loop safety
  • +VS Code native
  • +Supports many LLMs
02

Where it falls short

  • Requires own API keys
  • Can be slow on complex tasks
  • API costs can be high
03

Best for these users

👤
Target audience
Software developers, engineers
📌
Best for
Free and open source
Skip if you need
Requires own API keys
04

Pricing overview

Free Free plan: Yes

Free and open source. Requires your own LLM API keys.

Check current pricing →
05

Key features

Autonomous coding
File creation and editing
Terminal commands
Browser integration
Human approval workflow
Multi-LLM support
07

Alternatives to Cline

Claude Code

Anthropic's agentic CLI tool for autonomous coding tasks powered by Claude.

Cursor

AI-native code editor with codebase-aware chat and multi-file AI editing.

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GitHub Copilot

AI pair programmer integrated into VS Code and JetBrains with real-time code suggestions.

Windsurf

AI code editor with Cascade agent for deep codebase understanding and multi-file edits.

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Antigravity

Google's agentic IDE with autonomous code exploration and refactoring.

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08

Related comparisons

09

The verdict

Cline Free

Cline is a solid choice for software developers who need free and open source. At free, it delivers good value. Main caveat: requires own api keys. Compare with alternatives before committing.