Cline

Free

Open-source AI coding agent that works inside VS Code

Verified by editorial·Last updated: April 2026·How we rank

Editor's verdict

Cline is one of the strongest free tools in its category, rated 4.5/5 by 620 users. Best for complete multi-file coding tasks end-to-end and automate repetitive development tasks like test writing. Standout: fully open-source with no subscription cost. Watch out: requires API keys from AI providers - costs accrue per use. Fully free with no paid tier.

About Cline

Cline is an open-source AI coding assistant that runs directly inside Visual Studio Code as an extension. Unlike cloud-based tools that send your code to remote servers, Cline operates with full access to your local file system, terminal, and browser - giving it the ability to read project context, run commands, browse documentation, and make multi-file edits autonomously. The agentic approach means you can describe a task at a high level and Cline handles the execution, asking for confirmation before making destructive changes. Cline supports any OpenAI-compatible API, including local models run through Ollama or LM Studio, which makes it practical for teams with data privacy requirements who cannot use cloud-based AI tools. Its transparent approval model - every file change and terminal command is shown before execution - gives developers confidence that the AI is doing what they expect. For developers who want deep IDE integration without locking into a proprietary tool, Cline is one of the strongest open-source options available.

Pros & Cons

Pros

✓Fully open-source with no subscription cost
✓Agentic task execution with human-in-the-loop approval
✓Supports multiple AI providers including local models
✓Runs natively in VS Code without switching tools

Cons

✗Requires API keys from AI providers - costs accrue per use
✗Less polished UX than commercial alternatives
✗Agentic execution can make mistakes that require manual rollback

Best Use Cases

→Complete multi-file coding tasks end-to-end
→Automate repetitive development tasks like test writing
→Debug complex issues with autonomous investigation

Cline Preview

Live screenshot of Cline homepage. Visit the site ↗

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Pricing

Free$0 / forever

Pricing verified April 2026. Verify current pricing on the official site before purchase.

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MytheAi Rating

4.5

★★★★☆4.5

620 aggregate ratings

Aggregate of third-party review platforms (G2, Capterra, Product Hunt) plus editorial testing. How we rank.

Last verified: April 2026

Editorial Scoring

How Cline scores on our 7-criteria framework

See methodology →

Criterion

Weight

Score

Output Quality

Accuracy, polish, and usefulness of what the tool produces.

25%

Ease of Use

Onboarding friction, UI clarity, time to first useful result.

15%

Pricing Value

Output per dollar at the realistic monthly cost for a typical user.

15%

Feature Depth

Breadth and maturity of capabilities relative to category leaders.

15%

Integrations

Native integrations, API quality, and ecosystem coverage.

10%

Reliability

Uptime, output consistency, and battle-test through scale.

10%

Trajectory

Recent product velocity and momentum vs the category.

10%

Overall editorial score

100%

3.90/5

Scores are editorial assessments based on hands-on testing and verified user data. They do not reflect affiliate relationships. How we score.

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Frequently Asked Questions

Is Cline free?▼

Yes, Cline is completely free to use with no paid tiers.

What is Cline best for?▼

Cline is best suited for: Complete multi-file coding tasks end-to-end, Automate repetitive development tasks like test writing, Debug complex issues with autonomous investigation.

How does Cline compare to alternatives?▼

Cline holds a rating of 4.5/5 from 620 reviews. Browse our comparison pages to see detailed side-by-side breakdowns against similar tools.

Reviewed by

John Ethan

Founder & Editor-in-Chief

Founder of MytheAi. Tracking and reviewing AI and SaaS tools since January 2026. Built MytheAi out of frustration with pay-to-rank listicles and SEO-driven AI directories that prioritize ad revenue over honest guidance. Hands-on testing across 500+ tools to date.

Cline Review (2026): Is It Worth It?

Cline is a free tool with a free tier available. It holds a rating of 4.5/5 based on 620 reviews.

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