Cline — #3 Alternative to GitHub Copilot
Open-source autonomous VS Code coding agent with human-in-the-loop diff and command approval
Cline executes multi-step engineering tasks inside VS Code—reading files, running terminal tests, inspecting headless browsers, and calling MCP tools while presenting every file diff and shell command for explicit approval.
License: Apache-2.0 · Pricing: Free & Open Source · Compare all GitHub Copilot alternatives · Official Website