Modelence

Modelence, backed by Y Combinator, is an AI-powered platform that generates production-ready, full-stack web applications from natural-language descriptions, automatically creating the frontend, backend, database, and authentication infrastructure. It offers full-stack app generation with authentication, database, and production deploys wired in from day one, built-in user management and roles, and an integrated MongoDB database. Modelence includes monitoring with logs, metrics, and alerts, one-click deployment to managed cloud infrastructure, and code ownership with no vendor lock-in, built on an open-source web framework available on GitHub. It also supports custom domains with automatic SSL certificates. The platform reports more than 15,000 users and real customer implementations including MongoDB and the STEP Conference. Pricing is freemium: a free tier lets users build and deploy their first app, with paid plans available for teams and projects needing additional resources, higher usage limits, or priority support.