ProcessWire

ProcessWire is a free, open-source content management system (CMS) and framework that provides developers with powerful tools for building websites, applications, and web services. The CMS features a flexible API-driven architecture where every piece of content is stored as pages with custom fields, providing unlimited flexibility in data modeling. ProcessWire uses a jQuery-like API for the front-end, making it intuitive for developers familiar with JavaScript selector syntax. It includes a user-friendly admin interface with drag-and-drop page tree management, built-in image editing, and multi-language support. The platform emphasizes security, performance, and clean code with no bloat, making it suitable for projects of any size from small sites to large-scale applications. ProcessWire provides powerful template system, role-based access control, and extensive API for custom functionality. It has an active community creating modules for extended functionality, though it intentionally maintains a smaller core than systems like WordPress or Drupal.