Open Source in TYPO3 – Glossary

TYPO3 Open Source

TYPO3 is a powerful content management system (CMS) that’s completely open source. This means it’s free to use, and anyone can contribute to its development. Being open source makes TYPO3 a flexible and reliable option for businesses of all sizes. You get a strong community backing, regular updates, and the freedom to customize the CMS to meet your exact needs. Plus, with TYPO3, you’re not locked into any expensive software licenses—just endless possibilities for your website. If you're looking for a dependable CMS that won’t break the bank, TYPO3 is the way to go!

Open source means that the source code of software is publicly viewable and may be freely used, modified and passed on. TYPO3 is open-source software under the GPL. Companies pay no licence fees, retain full control and are not tied to a single provider.

The open approach brings many advantages. Thousands of developers review code, find errors and security gaps and contribute improvements. This ensures transparency and quality. A large ecosystem of extensions, agencies and specialists who share know-how also emerges.

For companies this means independence. They can change service provider, adapt functions and run the software in the long term without depending on licence models. Cost planning also becomes easier because effort arises mainly for setup, adaptation and operation.

Open source does not mean there are no obligations. Licence terms must be observed, especially when passing on adapted software. Also check how well an extension is maintained, because security depends on active support.

The TYPO3 Association and a lively community ensure further development, events and security. Companies can take part, for example through membership, code, translations or knowledge.

Use official documentation and forums to find solutions and clarify questions.

Donations and participation strengthen the project and secure its future.

Pay attention to regular updates so that security fixes are applied.

We are active in the TYPO3 community and develop solutions on an open-source basis.

This way you benefit from freedom and quality.