Cline Review 2026

Name: Cline
Brand: Cline
Availability: InStock

Honest pros, cons, and verdict on this ai coding tool

★★★★★

4.3/5

✅ Free, open source, and the most-installed AI agent on the VS Code marketplace

Starting Price

Free

Free Tier

Yes

What is Cline?

Open-source autonomous coding agent for VS Code — plans, edits, runs commands and uses MCP tools with explicit human-in-the-loop approval.

Cline is the most-installed AI coding agent on the VS Code marketplace and the open-source poster child for an agentic IDE inside an extension. Cline reads your code, plans multi-step changes, edits files, runs shell commands and browser actions, and pauses for explicit human approval at every risky step — making it the safest way to let an agent loose in a real repo. Unlike Copilot-style autocomplete, Cline runs as a chat panel with a Plan phase and an Act phase: you watch it think, you watch it execute, and you can roll back at any time. Because Cline brings your own model keys (Anthropic Claude, OpenAI, Bedrock, OpenRouter, local via Ollama or LM Studio, plus enterprise providers), there is no platform markup — costs map directly to the underlying API. Cline supports MCP servers as a first-class capability with an in-extension marketplace.

Key Features

✓Open-source coding agent runtime for VS Code, CLI, and SDK embedding

✓Bring-your-own-key support for OpenAI, Anthropic, Google, and other model providers

✓MCP Marketplace for connecting agent tools and context

✓Secure client-side architecture with multi-root workspaces

✓Enterprise controls including SSO, RBAC, centralized billing, audit/authentication logs, and provider restrictions

Pricing Breakdown

Open Source

Free

✓Full Plan/Act loop
✓MCP marketplace
✓BYO keys

Enterprise

Custom

annual

✓SSO
✓Audit logs
✓Security controls

Pros & Cons

✅Pros

•Free, open source, and the most-installed AI agent on the VS Code marketplace
•Plan/Act + per-step approvals make it safe to let an agent touch a production repo
•BYO keys mean no platform markup — you pay model providers directly at cost
•Built-in MCP marketplace makes tool integration almost zero-config
•Works with frontier hosted models or fully local LLMs via Ollama for air-gapped use
•Checkpoints provide an undo button independent of git for safe experimentation

❌Cons

•Token usage can be high on long agent loops — easy to burn through Claude credits if you don't watch context
•Plan/Act paradigm has a learning curve compared to Copilot-style autocomplete
•Some advanced features (browser automation, MCP) need extra setup beyond install
•VS Code-only (no JetBrains support yet)

Who Should Use Cline?

✓Letting an agent implement features with explicit human approval
✓Debugging complex multi-file issues
✓Engineers using local LLMs who want a real agent, not just autocomplete
✓Trying agentic coding inside VS Code without switching IDEs

Who Should Skip Cline?

×You're concerned about token usage can be high on long agent loops — easy to burn through claude credits if you don't watch context
×You need something simple and easy to use
×You're concerned about some advanced features (browser automation, mcp) need extra setup beyond install

Alternatives to Consider

Cursor

AI-first code editor with autonomous coding capabilities. Understands your codebase and writes code collaboratively with you.

Starting at Free

Learn more →

Windsurf (now Devin Desktop)

Agentic AI IDE — originally from Codeium, now owned by Cognition and rebranding to Devin Desktop. The Cascade agent does deep-context, multi-file edits with inline diffs.

Starting at Free

Learn more →

Continue

Open-source AI coding extension for VS Code and JetBrains — bring any model, configure custom rules, share assistants across your team.

Starting at $3

Learn more →

Our Verdict

✅

Cline is a solid choice

Cline delivers on its promises as a ai coding tool. While it has some limitations, the benefits outweigh the drawbacks for most users in its target market.

Try Cline →Compare Alternatives →

Frequently Asked Questions

What is Cline?

Open-source autonomous coding agent for VS Code — plans, edits, runs commands and uses MCP tools with explicit human-in-the-loop approval.

Is Cline good?

Yes, Cline is good for ai coding work. Users particularly appreciate free, open source, and the most-installed ai agent on the vs code marketplace. However, keep in mind token usage can be high on long agent loops — easy to burn through claude credits if you don't watch context.

Is Cline free?

Yes, Cline offers a free tier. However, premium features unlock additional functionality for professional users.

Who should use Cline?

Cline is best for Letting an agent implement features with explicit human approval and Debugging complex multi-file issues. It's particularly useful for ai coding professionals who need open-source coding agent runtime for vs code, cli, and sdk embedding.

What are the best Cline alternatives?

Popular Cline alternatives include Cursor, Windsurf (now Devin Desktop), Continue. Each has different strengths, so compare features and pricing to find the best fit.

More about Cline

Pricing Alternatives Free vs Paid Pros & Cons Worth It?Tutorial

📖 Cline Overview 💰 Cline Pricing 🆚 Free vs Paid 🤔 Is it Worth It?

Last verified March 2026

What is Cline?

Open-source autonomous coding agent for VS Code — plans, edits, runs commands and uses MCP tools with explicit human-in-the-loop approval.

Key Features

✓Open-source coding agent runtime for VS Code, CLI, and SDK embedding

✓Bring-your-own-key support for OpenAI, Anthropic, Google, and other model providers

✓MCP Marketplace for connecting agent tools and context

✓Secure client-side architecture with multi-root workspaces

✓Enterprise controls including SSO, RBAC, centralized billing, audit/authentication logs, and provider restrictions

Pros & Cons

✅Pros

•Free, open source, and the most-installed AI agent on the VS Code marketplace
•Plan/Act + per-step approvals make it safe to let an agent touch a production repo
•BYO keys mean no platform markup — you pay model providers directly at cost
•Built-in MCP marketplace makes tool integration almost zero-config
•Works with frontier hosted models or fully local LLMs via Ollama for air-gapped use
•Checkpoints provide an undo button independent of git for safe experimentation

❌Cons

•Token usage can be high on long agent loops — easy to burn through Claude credits if you don't watch context
•Plan/Act paradigm has a learning curve compared to Copilot-style autocomplete
•Some advanced features (browser automation, MCP) need extra setup beyond install
•VS Code-only (no JetBrains support yet)

Alternatives to Consider

Cursor

AI-first code editor with autonomous coding capabilities. Understands your codebase and writes code collaboratively with you.

Starting at Free

Learn more →

Windsurf (now Devin Desktop)

Agentic AI IDE — originally from Codeium, now owned by Cognition and rebranding to Devin Desktop. The Cascade agent does deep-context, multi-file edits with inline diffs.

Starting at Free

Learn more →

Continue

Open-source AI coding extension for VS Code and JetBrains — bring any model, configure custom rules, share assistants across your team.

Starting at $3

Learn more →

Frequently Asked Questions

What is Cline?

Open-source autonomous coding agent for VS Code — plans, edits, runs commands and uses MCP tools with explicit human-in-the-loop approval.

Is Cline good?

Is Cline free?

Yes, Cline offers a free tier. However, premium features unlock additional functionality for professional users.

Who should use Cline?

What are the best Cline alternatives?

Popular Cline alternatives include Cursor, Windsurf (now Devin Desktop), Continue. Each has different strengths, so compare features and pricing to find the best fit.