Cline

Video Review

About

Cline has 5 million installs and 58.7K GitHub stars. Cursor charges $20/month. Cline charges $0. That math alone explains why it's the fastest-growing AI coding extension in VS Code history. But here's the catch most people miss: Cline is BYOK — Bring Your Own Key. You plug in API keys from Anthropic, OpenAI, Google Gemini, or any of 10+ providers, and you pay the model provider directly. No middleman markup. Light users spend $5-15/month. Heavy users hit $100+. The extension tracks every token and dollar in real time, so there are no surprises — just transparency that Cursor can't match. What makes Cline genuinely different from tab-completion tools is autonomy. Give it a task like "add OAuth login to this Express app" and watch it analyze your codebase, create files, modify routes, run terminal commands, and test the result — step by step, with your approval at each stage. It's not autocomplete. It's a junior developer who never sleeps and never argues about code style. The Model Context Protocol (MCP) support is where power users get hooked. You can build custom tools — connect databases, APIs, deployment pipelines — and Cline orchestrates them. Cursor limits you to 40 tool configurations. Cline has no cap. Browser automation is another standout. Cline launches a headless browser, clicks through your UI, fills forms, captures screenshots, and reads console logs. That's integration testing without writing a single test file. The workspace checkpoint system snapshots your project state at every step. Made a wrong turn three steps ago? Roll back instantly without touching git. Samsung, Salesforce, Oracle, and Amazon all use it in production. The honest limitation: no tab completions. If you live on inline code suggestions while typing, Cline doesn't do that — it's an agent, not an autocomplete engine. And heavy sessions with Claude Sonnet can drain $2-3 per task. Budget-conscious developers can run local models via Ollama for near-zero cost, but quality drops noticeably. Cline fits mid-to-senior developers who want an AI pair programmer they fully control, on any model, with zero lock-in. Uninstall it and your VS Code is exactly as it was. Try doing that with Cursor.

Key Features

• Autonomous multi-step coding agent with human-in-the-loop approval at every action
• 10+ AI provider support: Anthropic, OpenAI, Gemini, AWS Bedrock, Azure, Groq, Ollama, LM Studio
• Model Context Protocol (MCP) for unlimited custom tool integrations — no 40-tool cap like Cursor
• Browser automation: launches headless browser, clicks, fills forms, captures screenshots and console logs
• Workspace checkpoints: snapshot and rollback project state at every step without git
• Real-time token and cost tracking per task — see exactly what each request costs
• Plan/Act modes: review the AI's full plan before it touches your code
• Context tools (@url, @file, @folder, @problems) for precise codebase scoping

Use Cases

• 1Refactoring a 50-file codebase: Cline analyzes cross-file dependencies, proposes changes, and executes them with rollback at each step
• 2Adding authentication to an existing app: describe the requirement, approve the plan, and watch it create routes, middleware, and database schemas
• 3Debugging production issues: paste error logs, point Cline at your codebase, and let it trace the root cause across files and terminal output
• 4Building MCP tool integrations: connect Cline to your database, CI/CD pipeline, or internal APIs for custom automated workflows
• 5Frontend testing without writing tests: Cline launches your app in a browser, clicks through flows, and catches visual bugs and runtime errors