What is TYPO3 used for?

TYPO3 is a mature open-source PHP content management framework with an extension system, used for enterprise websites and published under the GPL. It is a good fit for running large corporate or institutional websites, building multilingual sites for agencies and extending a CMS with custom extensions.

Is TYPO3 open source?

Yes. TYPO3 is open source under the GPL-2.0 licence. Its source code is on GitHub at TYPO3/typo3 and is written mainly in PHP.

Yes. TYPO3 is open source, so the software itself is free to use.

Can I self-host TYPO3?

Yes. TYPO3 can be self-hosted on your own server or infrastructure.

What is TYPO3 an alternative to?

TYPO3 is an open-source alternative to Sitecore, Sitefinity, Optimizely and Adobe Experience Manager. Other open-source alternatives to Sitecore include Wagtail, Umbraco CMS and dotCMS.

Is TYPO3 actively maintained?

Yes. The most recent commit to TYPO3 was on 2 October 2026. The project has 1.2k stars on GitHub.

TYPO3: open-source alternative to Sitecore, Sitefinity

About TYPO3

TYPO3 is an open-source, PHP-based content management system released under the GNU GPL. It was created by Kasper Skårhøj and is developed today by a community of contributors and the TYPO3 Core Development Team. This repository is a synchronized mirror of the core packages, which are reviewed on the project's own code review system.

It describes itself as a content management framework, meaning the streamlined core is separated from optional extensions, and an open API lets developers extend both the website frontend and the administration backend. Many ready-made extensions are available, or you can write your own. TYPO3 runs on web servers such as Apache, nginx or IIS, on Linux, Windows, FreeBSD and macOS, and uses a database such as MySQL.

The backend is accessed through a supported browser, and the installation guide explains how to set up a basic installation on your server. TYPO3 is self-hosted, with documentation and community resources linked from the README, and it is aimed at agencies and organizations building large, multilingual and customized sites. The repository lists the GPL-2.0 licence.

Key features

Content management framework with extensions
Open API for frontend and backend extension
Runs on Apache, nginx, or IIS
Database-backed with MySQL support
Browser-based administration backend
Large extension ecosystem

Good fit for

→Running large corporate or institutional websites
→Building multilingual sites for agencies
→Extending a CMS with custom extensions

Built with: PHP
Tags: cms; php; typo3; content-management; enterprise; extensions; gpl; self-hosted; framework

TYPO3: questions and answers

What is TYPO3 used for?: TYPO3 is a mature open-source PHP content management framework with an extension system, used for enterprise websites and published under the GPL. It is a good fit for running large corporate or institutional websites, building multilingual sites for agencies and extending a CMS with custom extensions.
Is TYPO3 open source?: Yes. TYPO3 is open source under the GPL-2.0 licence. Its source code is on GitHub at TYPO3/typo3 and is written mainly in PHP.
Is TYPO3 free?: Yes. TYPO3 is open source, so the software itself is free to use.
Can I self-host TYPO3?: Yes. TYPO3 can be self-hosted on your own server or infrastructure.
What is TYPO3 an alternative to?: TYPO3 is an open-source alternative to Sitecore, Sitefinity, Optimizely and Adobe Experience Manager. Other open-source alternatives to Sitecore include Wagtail, Umbraco CMS and dotCMS.
Is TYPO3 actively maintained?: Yes. The most recent commit to TYPO3 was on 2 October 2026. The project has 1.2k stars on GitHub.