Cline
by Cline (Open Source)
FreeOpen-source AI coding agent for VS Code. Uses Claude, GPT, or other LLMs to autonomously write code, create files, run terminal commands, and complete complex multi-step coding tasks. BYO API key model.
Overview
Cline is an open-source AI coding agent for VS Code that can autonomously write code, create and edit files, run terminal commands, and complete complex multi-step programming tasks. Unlike simple code completion tools, Cline acts as an agentic assistant that can plan and execute entire features. It supports multiple LLM providers (Claude, GPT, Gemini, etc.) with a bring-your-own-API-key model.
Key Features
Agentic Coding — Autonomously plans and executes multi-step coding tasks
File Operations — Creates, edits, and manages files across your project
Terminal Commands — Runs shell commands, installs packages, runs tests
BYO API Key — Use your own API keys from Anthropic, OpenAI, Google, or OpenRouter
Model Flexibility — Switch between any supported LLM (Claude, GPT-4, Gemini, etc.)
Open Source — Fully open-source, community-driven development
Browser Integration — Can interact with web browsers for testing and debugging