TYPO3

TYPO3 is a PHP‑based web content management framework released under the GNU GPL‑2.0. It runs on common web servers such as Apache, nginx or IIS and supports databases like MySQL, requiring only a browser‑accessible backend for administration. The core is deliberately separated from optional extensions, exposing an open API that lets developers customize both the frontend presentation and backend functionality, while a large ecosystem of downloadable extensions expands its capabilities.

The software targets organizations and developers who need a self‑hosted, free‑to‑use CMS that can be tailored to diverse website requirements. Its open‑source nature and extensive documentation make it suitable for projects ranging from simple sites to complex, enterprise‑scale portals. Because it is maintained by a volunteer community backed by a not‑for‑profit association and a service company, contributors can participate in a democratic governance model and benefit from a stable, mature codebase.