Cline open-source AI coding agent

What problem Cline solves Cline helps developers understand, change, and automate work across codebases without being tied to one editor or AI model. It can answer questions about files and dependencies, coordinate changes across multiple files, and run tasks in a terminal. Developers can review and approve its actions as they work. Key features and benefits Cline is available as a desktop app, IDE extension, CLI, and SDK. Plan mode lets you agree on an approach before Act mode carries it out. The agent can edit projects, run bash commands, respond to command output, and provide diffs, checkpoints, linter-aware fixes, and undo options. Repository-level .clinerules can share project conventions with the agent. Choose from models and providers including Claude, GPT, Gemini, AWS Bedrock, Azure, Ollama, and others, or connect an OpenAI-compatible endpoint. Bring your own key or weights. MCP servers and plugins extend the agent with tools and lifecycle hooks. Cline also supports multi-agent workflows, scheduled tasks, and connections to services such as Slack, Linear, and CI pipelines. The project is open source under Apache 2.0. Alternatives and comparison Developers may also consider GitHub Copilot, Cursor, or other editor-based coding assistants. Cline distinguishes itself with an open-source runtime, support for multiple models and infrastructure choices, and access through the IDE, terminal, desktop app, and SDK. The homepage describes integrations with editors including VS Code, JetBrains, Cursor, and Windsurf. Pricing The homepage does not list specific prices or plan rates. Cline is open source, and its site links to ClinePass and pricing information. Users can bring their own model provider credentials, so provider usage may have separate costs. FAQs Q: Which environments can I use Cline in? A: Cline offers a desktop app, IDE extension, CLI, and SDK. Q: Do I have to use a specific AI model? A: No. Cline supports many providers, local models, and OpenAI-compatible endpoints. Q: Can I review actions before they happen? A: Yes. Plan and Act modes support planning and step approvals, with an auto-approve option available. Q: Is Cline open source? A: Yes. The homepage identifies it as Apache 2.0 open source.