Emergent.sh is a revolutionary 2026 AI-powered "vibe coding" platform that builds full-stack web/mobile apps, custom agents, and integrations from natural language descriptions—no coding required. Multi-agent AI handles planning, coding, design, testing, deployment in minutes, with instant hosting, Stripe payments, databases, auth. Ideal for founders, freelancers, teams prototyping MVPs, internal tools, or production apps fast. Backed by Y Combinator, ex-Google/Amazon engineers—3M+ users, credit-based for flexible scaling.