Replit

Replit has evolved far beyond its origins as a simple, in-browser "read-eval-print loop." It is now a comprehensive, end-to-end AI development platform, and its core "vibe coding" component is the Replit Agent. This component is positioned not merely as an assistant, but as an "autonomous AI system" capable of handling the entire software development lifecycle. The Agent's capabilities are emblematic of the Full-Stack AI Agent category. It can take a single natural language prompt and generate a complete, multi-file application, handling frontend scaffolding (HTML/CSS/JS), backend logic (API routes), database connections, and third-party integrations. The platform is "end-to-end," combining a zero-setup IDE that supports over 50 programming languages, the AI agent, and one-click deployments.