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Cline is a free open-source autonomous AI coding agent for VS Code and JetBrains with BYO API key, 30+ LLM providers, and per-step approval workflows.
Coding
9.2Cline autonomously creates and edits files across an entire codebase, runs terminal commands, and drives a browser for UI verification with per-step developer approval — covering the full agentic coding workflow within VS Code or JetBrains without switching editors, and supporting any LLM via BYO API key at direct provider rates with no markup.
Automation
8.5Plan/Act mode separates task planning from execution enabling structured multi-step automation; MCP (Model Context Protocol) allows Cline to extend its own toolset with custom integrations for databases, observability platforms, and internal tools; spend limits and YOLO mode let developers tune autonomy vs oversight trade-offs per workflow.
Research
7.2Codebase indexing enables Cline to understand and navigate large unfamiliar repositories, and browser automation via Puppeteer allows documentation retrieval and web-based research during coding tasks, but Cline is a coding agent — it does not provide academic literature search, citation management, or general research capabilities outside programming workflows.
Cline (formerly Claude Dev) is an Apache 2.0 open-source autonomous AI coding agent running as a VS Code and JetBrains extension with 5M+ installs. It creates and edits files, runs terminal commands, and drives a browser via Puppeteer, asking for developer approval before each action. Plan/Act mode separates planning from execution for structured control. Cline supports 30+ LLM providers including Claude, GPT-4, Gemini, and local models via Ollama, with BYO API keys and no markup via Cline Provider. The extension is free; individual API costs typically run $5–50/month. Teams plan is $20/user/month with the first 10 seats permanently free. The side panel output interface is less polished than Cursor's inline view per community feedback. Heavy daily use can reach $100+/month in API costs.
Pricing
| Plan | Model | Usage Limits | Price |
|---|---|---|---|
| Open Source | User-selectable from 30+ providers including Claude Opus 4.6, Claude Sonnet 4.6, GPT-5.4, GPT-4o, Gemini 3.1 Pro, DeepSeek, Mistral, and local models via Ollama | No rate limits imposed by Cline; limits determined by the user's chosen LLM provider API rate limits; spend limits configurable within Cline settings | Individual |
| Teams | All Open Source models plus centralized team billing and JetBrains support; same model access as Open Source | Centralized billing; team management; role-based access control; JetBrains support included; no message caps beyond LLM provider limits | $20/user/mo, first 10 seats free |
| Enterprise | All Teams models with custom enterprise security configuration and dedicated support | — | custom |
Free VS Code/JetBrains extension with BYO API key means individual developers pay only for actual LLM inference ($5–50/month typical) versus Cursor's flat $20/month or GitHub Copilot's $10/month, with 30+ model options, per-step approval for safety, and MCP for custom tool integration without any subscription commitment.
First 10 Teams seats permanently free eliminates upfront cost for early-stage engineering teams; BYO API model means no Cline subscription overhead on top of existing Claude or OpenAI API contracts; and Apache 2.0 license enables custom deployment and modification without licensing restrictions.
Free extension with pay-per-use API billing means freelancers with variable monthly workloads pay only for actual usage — months with light coding cost $5–10 in API versus Cursor's flat $20/month, and local model support via Ollama enables cost-free AI coding for privacy-sensitive client projects.
30+ LLM provider support including local Ollama models enables privacy-sensitive data science workflows where code cannot interact with cloud APIs; codebase indexing understands complex ML pipeline repositories; and MCP integration allows connection to data infrastructure tools — though Cline is not specialized for data science and lacks data exploration or visualization capabilities.
Cursor
proprietary IDE fork with tightly integrated inline AI, visual diff review, and flat $20/month cost, but no BYO API key model freedom, no Apache 2.0 open source, and requires switching from VS Code to Cursor's editor
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Aider
free open-source terminal-based coding agent with git-first automatic commits and 75+ LLM providers, but no VS Code/JetBrains IDE integration, no browser automation, and CLI-only interface versus Cline's IDE sidebar
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Devin
autonomous cloud-based AI engineer with its own sandboxed IDE, Jira/Linear/Slack integration, and parallel agents at $20/month minimum + ACU costs, but no BYO API key, no VS Code integration, and operates asynchronously rather than within the developer's live editor session
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Consider These Instead
Choose Cursor over Cline when a polished IDE replacement with tightly integrated inline AI, visual diff review, and a flat $20/month cost regardless of usage volume is preferred over Cline's side panel interface and variable API cost model. Choose Aider over Cline when a terminal-based workflow with git-first automatic commits and no IDE or editor dependency is preferred at the same BYO API key cost model. Choose Claude Code over Cline when Anthropic's purpose-built terminal agent with Agent Teams for parallel multi-agent workflows and 1M token context is required within a Claude-specific ecosystem rather than Cline's multi-provider agnostic approach.