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Cline

Open Source

by Cline

★ 4.7 (304 reviews)

Cline is a free, open-source autonomous coding agent that lives inside VS Code and edits your project with your approval.

Try Cline free

The extension is free; you pay only for the model API you connect.

Visit Cline →

We may earn a commission from this link, at no extra cost to you. Disclosure.

Last reviewed

Best for

VS Code users who want an approval-gated autonomous agent inside their editor.

What is Cline?

Cline is an open-source VS Code extension that turns the editor into an autonomous coding agent. It plans a change, edits files, runs terminal commands, and asks for your approval at each step. You connect your own model API key, so it is free to use beyond model costs.

Key features

  • VS Code native
  • Approval at each step
  • Runs terminal commands
  • Browser testing
  • Bring your own model
  • MCP tool support

Pros

  • +Free and open-source
  • +Human-in-the-loop control
  • +Great VS Code UX
  • +Supports MCP tools

Cons

  • Model costs scale with task size
  • Tied to VS Code

Cline pricing

Free tier: The extension is free; you pay only for the model API you connect.

Open Source

Free

  • Unlimited use
  • Your own API key

How to get started with Cline

  1. 1 Install the Cline extension from the VS Code marketplace
  2. 2 Add your model API key
  3. 3 Open the Cline panel
  4. 4 Describe a task and approve each step

Try Cline free

The extension is free; you pay only for the model API you connect.

Visit Cline →

We may earn a commission from this link, at no extra cost to you. Disclosure.

Cline FAQ

How is Cline different from GitHub Copilot?

Copilot is mainly an autocomplete assistant, while Cline is an autonomous agent that plans, edits multiple files, and runs commands with your approval. Cline is also open-source and model-agnostic.

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