Wagtail

A cloud-based headless Content as a service (CaaS) platform created to work with static websites, mobile apps and server-side applications of any kind.

Strapi is an open-source headless CMS that revolutionizes the way developers build and manage APIs. Written in JavaScript, Strapi offers a powerful and flexible solution for creating content-rich applications. As a headless CMS, it separates the content management backend from the frontend presentation layer, allowing developers to use any frontend technology they prefer. Strapi provides a user-friendly admin panel for content editors, customizable content types, and built-in user and role management. Its plugin system and RESTful API make it highly extensible and adaptable to various project requirements. With features like internationalization, media management, and GraphQL support, Strapi is suitable for a wide range of applications, from small websites to large-scale, multi-platform projects.

A file-based content management system (CMS) that simplifies website and web application development by using text files for content management instead of a traditional database.

The Fastest Sites in the World Run on RebelMouse

Drupal is a powerful, open-source content management framework known for its flexibility and scalability. It's favored by developers and large organizations for building complex, content-rich websites and web applications.