Underpeaks is a developer-first headless CMS that generates production-ready Flutter and Next.js applications from a single content model. Define your data model once, and Underpeaks generates real, readable source code for both a mobile app and a web app — not scaffolding, not a black box.
The platform supports five database backends (Supabase, PostgreSQL, MySQL, MongoDB, and Firebase) through one consistent adapter layer, so teams aren't locked into a specific database vendor. Underpeaks is available as Underpeaks Core, a free, self-hosted, open-source option that runs on a team's own infrastructure, or as Underpeaks Studio, a fully managed hosted platform with additional collaboration and deployment features.
Underpeaks is built for developers and agencies who need to ship both a mobile app and a web app from the same data model without maintaining two separate backends or duplicating business logic.