| CakePHP | Web Framework | Rapid development framework using MVC; emphasizes convention over configuration. |
| CodeIgniter | Web Framework | Lightweight MVC framework known for speed and simplicity; great for beginners. |
| Drupal | CMS | Powerful, flexible CMS for complex sites; strong in security and scalability. |
| Joomla | CMS | User-friendly CMS with extensive plugin support; sits between WordPress and Drupal in complexity. |
| Laminas | Web Framework | Enterprise-grade successor to Zend Framework; modular and extensible. |
| Laravel | Web Framework | Modern, elegant MVC framework with built-in tools for routing, ORM, and templating. |
| Magento | E-commerce Platform | Robust e-commerce solution for large-scale stores; now part of Adobe Commerce. |
| Matomo | Analytics Platform | Privacy-focused alternative to Google Analytics; self-hosted and open-source. |
| Mautic | Marketing Automation | Open-source marketing automation tool for email campaigns, lead tracking, etc. |
| Moodle | LMS | Widely used open-source platform for online education and training. |
| Neos | CMS | Content-first CMS with inline editing and strong developer flexibility. |
| Nextcloud | File Collaboration | Self-hosted cloud storage and collaboration suite; fork of ownCloud. |
| ownCloud | File Collaboration | Original self-hosted cloud platform for file sharing and syncing. |
| PrestaShop | E-commerce Platform | Open-source e-commerce solution for small to medium businesses. |
| Shopware | E-commerce Platform | Flexible e-commerce platform with modern architecture and headless support. |
| Slim | Micro Framework | Minimalist PHP framework for REST APIs and small web apps. |
| Symfony | Web Framework | Highly scalable, component-based framework used in many enterprise apps. |
| TYPO3 | CMS | Enterprise-level CMS with granular permissions and multilingual support. |
| WooCommerce | WordPress Plugin | Popular e-commerce plugin for WordPress; ideal for small to medium stores. |
| WordPress | CMS | Most widely used CMS; beginner-friendly with vast plugin/theme ecosystem. |
| Yii | Web Framework | Fast, secure, and efficient framework with strong caching and Gii code generator. |