ProcessWire is a free PHP open source CMS with a great API built to save you time and make development fun at any scale. Developed by Ryan Cramer Design, LLC
License: Open Source
ProcessWire is known for its flexibility and ease of use, making it ideal for developers looking for a lightweight CMS. TYPO3, on the other hand, is suited for large-scale projects, offering robust features and strong multilingual capabilities but comes with a steeper learning curve.