Plone

The system provides a web‑based platform for creating, organizing, and publishing digital content. It combines a Python backend with a React frontend and offers a REST API, enabling both traditional page‑based sites and headless deployments where developers can build custom front‑ends. Content editors work through a modern, user‑centric interface that supports fast editing and management of pages, documents, and media.

It is intended for organizations and developers who need a stable, secure, and extensible content management solution that can be hosted on their own infrastructure or in the cloud. The software is free, fully open source under the ZPL‑2.0 license, and is supported by a community and the Plone Foundation, which ensures long‑term availability and no subscription fees.

Distinctive aspects include over two decades of security and stability track record, a built‑in permission system, and a modular architecture that allows customization through add‑ons and API integration while keeping the entire stack open source and self‑hostable.