JavaScript is a lightweight, interpreted programming language.

Payload CMS
Strapi
Directus
PocketBase.io
FlutterFlow
Contentful
Craft CMS
Self-hosted, dev-first headless CMS that generates production-ready Flutter and Next.js apps from a single content model.

Website, pricing, platforms and company facts side by side.
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JST
JavaScript Tutorial
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| Website | appcreator24.com | underpeaks.com |
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| Company | — | Startup from South Africa · 1 - 9 employees · 2026 |
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Underpeaks is a developer-first headless CMS that generates production-ready Flutter and Next.js applications from a single content model. Founders define their data model once, and Underpeaks generates real, readable source code for both a mobile app and a web app from that same schema. The...
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What is underpeaks
As answered by people managing JavaScript Tutorial and UnderPeaks.
UnderPeaks's answer:
Most headless CMS tools give you a content API and an admin panel and leave the actual app building to you. Underpeaks goes further. You define your data model once and it generates a real working Flutter app and a real Next.js app from that same schema, not a template you have to fill in by hand. It also runs on five different databases through one adapter, and you can self host it completely free with no vendor lock in.
UnderPeaks's answer:
If you are building both a mobile app and a web app, Underpeaks saves you from building the same backend twice and keeping two codebases in sync every time something changes. Tools like Strapi, Payload and Directus stop at the API layer. FlutterFlow only covers mobile. Underpeaks covers both, and because it is not locked to one database, you are not stuck with whatever backend you started with.
UnderPeaks's answer:
Developers and small agencies who need to ship a mobile app and a web app from the same data without maintaining two separate backends. It is also a good fit for anyone who wants a self hosted CMS they actually own rather than renting access to their own data.
UnderPeaks's answer:
Underpeaks grew out of years of building the same kind of app over and over, a mobile version and a web version, each with its own backend, its own bugs, and its own drift from the other one over time. It became clear that the schema should be the single source of truth and everything else, the backend, the mobile app, the web app, should be generated from it instead of hand built twice.
UnderPeaks's answer:
Next.js and TypeScript power the hosted platform and the code generation engine. Flutter and Dart are one of the two generated app targets, with Next.js as the other. Supabase, Postgres, MySQL, MongoDB and Firebase are supported as database backends.
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