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Cline

Open-source autonomous AI coding agent for VS Code and beyond — edit files, run terminals, and ship faster with any AI model.

Our take: Cline is a free, open-source AI coding assistant that integrates directly into popular IDEs like VS Code and JetBrains.

Best forIndividual developers and engineering teams who want an autonomous AI coding agent they can self-host with their own API keys and no subscription lock-in
ReviewedPricing: Freemium
8.0 out of 105 criteria · see breakdown
Try ClineFree (open source); Enterprise plan available
The bottom line

A powerful, flexible AI coding assistant that integrates seamlessly into your development environment.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

What it is, and why we rate it

One line each. Open a row for detail.

What it really isCline — an open-source AI coding agent for VS Code and JetBrains.
Our takeCline is a free, open-source AI coding assistant that integrates directly into popular IDEs like VS Code and JetBrains.
It allows developers to automate coding tasks by connecting to various AI models through their own API keys, offering flexibility and control over costs. The tool supports file editing, terminal command execution, and multi-agent collaboration, making it a versatile addition to a developer's workflow.
Why we rate itCline's open-source nature and support for multiple AI models provide developers with flexibility and control over their coding assistance tools.
The catchRequires configuring external AI providers and managing associated costs.

Best / not good for

Best for
  • Individual developers
  • Small to medium-sized development teams
  • Organizations seeking customizable AI coding assistance
Not good for
  • Teams without the resources to manage external AI integrations
  • Developers seeking an all-in-one solution with built-in AI models
  • Organizations requiring extensive enterprise features out of the box
Trade-offs

Friction report

Trade-offs to know before signing up.

  1. Time to value
    Moderate: Initial setup requires configuring external AI providers.
  2. Scale breakpoint
    Managing multiple API keys and associated costs can become complex at scale.
  3. Walled garden
    Low: Open-source nature allows for extensive customization and integration.
Still a fit?
If none of these block you, start on the free plan.
Try Cline

Frequently Asked Questions

Is Cline free to use?

Yes — the Cline extension itself is completely free and open source. You pay only for AI inference, which goes directly to whichever AI provider (Anthropic, OpenAI, Google, etc.) you connect via your own API key. There are no seat fees or subscriptions for individual use.

Do I need to provide my own AI API key?

Yes. Cline is a bring-your-own-key platform. You connect it to any supported AI provider using your own credentials, giving you full control over which model you use and what you spend on inference.

Which editors and environments does Cline support?

Cline runs as an extension in VS Code, JetBrains (Early Access), Cursor, and Windsurf, and is also available as a CLI for macOS and Linux. A multi-editor approach means you can use it wherever you already work.

What makes Cline different from a standard AI code-completion tool?

Unlike copilot-style completions, Cline is an autonomous agent. It can plan multi-step tasks, read and write files across your project, execute terminal commands, interact with a browser, and call external tools via MCP — all while asking for your approval at key checkpoints.

Is there an enterprise or team plan?

Yes. Cline offers an Enterprise plan for teams that adds SSO and SCIM provisioning, centralized billing, a team management dashboard with role-based access control, JetBrains support, a dedicated SLA, and priority support. Pricing is custom and requires contacting the Cline sales team.

Alternatives

  • Step up

    Cline Enterprise for additional features like SSO and dedicated support.

  • Lighter alternative

    GitHub Copilot for a more integrated, subscription-based solution.

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Tags

#AI coding#developer tools#open source

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