The most widely adopted: GitHub Copilot (code completion integrated into VS Code, ~40% of professional developers use it), Cursor (AI-native code editor), Claude Code (terminal-based AI coding assistant), ChatGPT (general coding questions and debugging), and Replit (AI-powered collaborative coding). For specific tasks: Tabnine for on-premise code completion, Codeium for free alternatives, and Amazon CodeWhisperer for AWS-integrated development. The trend in 2026 is toward agentic coding tools that don't just suggest code but can plan, implement, test, and debug entire features with minimal human direction.