Strapi

It provides a self‑hosted, open‑source headless CMS built on JavaScript/TypeScript that lets developers define content models and automatically generates REST and GraphQL APIs for any frontend, mobile, or IoT client. The admin interface offers a visual content‑type builder, media library, internationalization, draft‑and‑publish workflow, and granular role‑based permissions.

Developers can extend the system through a plugin architecture, choose among several databases (SQLite, PostgreSQL, MySQL, MariaDB), and customize backend behavior via routes, middlewares, controllers, and services. First‑class TypeScript support and an AI layer for content modeling, alt‑text generation, and translations are included.

The framework is distributed under the MIT license, requires no subscription, and can be run on any infrastructure the user controls, with optional cloud hosting offered by the project’s maintainers. It targets teams that need a flexible, programmable content API while retaining full control over code and deployment.