What is TYPO3?
TYPO3 is a content management system (CMS) that is used to create and edit web pages without knowing HTML or CSS programming. Initially, it was focused only on editing websites, but now the system is able to control the Web, content, functionality, and design. TYPO3 is easy to use and a very effective tool for small sites as well as multilingual sites of large corporations.
TYPO3 is an open system. It means that it is for free without any license fees. It is used by amateurs as well as professionals who can contribute to the future development of TYPO3.