Drupal Content Management System

Drupal is a free, open-source web content management platform and content management framework written in PHP, powering millions of websites and applications worldwide. Created by Dries Buytaert in 2001 as a student message board project, it has grown into one of the most powerful and flexible CMS platforms with over 40,000 community-contributed modules and themes. Key features include: modular architecture (core system with extendable modules for authentication, content types, views, forms, and workflows, plus thousands of contributed modules), content types and fields (custom content types with configurable fields including text, number, image, entity reference, date, and computed fields), Views module (powerful query builder and display system for creating lists, tables, grids, maps, and RSS feeds from any content without coding), taxonomy system (hierarchical and free-tagging vocabularies for content classification and categorization), multilingual support (full content translation, interface translation, and right-to-left language support in 100+ languages), user management (role-based permissions with granular access control per module, content type, and field), menu and navigation (hierarchical menu system with automatic breadcrumb generation and custom links), theme system (Twig-based templating with template suggestions, render arrays, and libraries for CSS and JS management), headless and decoupled architecture (RESTful and GraphQL APIs for serving content to JavaScript frontends, mobile apps, and IoT devices), and enterprise-grade security (dedicated security team, automated vulnerability scanning, and timely security advisories).