Grav is a flat-file content management system built on PHP that requires no installation—extract and run immediately. It uses Markdown for content, YAML for configuration, and Twig for templating, combined with Symfony components for caching, event dispatching, and CLI functionality. The architecture emphasizes simplicity and extensibility through a dependency injection container and event-driven plugin system.
The tool solves the problem of managing website content without a database by storing everything as files on the filesystem. This approach eliminates database setup complexity and makes content portable and version-control friendly. Performance is handled through Symfony's caching layer, while dynamic image manipulation is provided through the Gregwar Image Library. The package management system allows one-command installation and updates of plugins, themes, and Grav itself.
Grav suits developers and content creators who want a lightweight alternative to database-driven CMS platforms and prefer working with flat files, Markdown, and configuration files. It works well for documentation sites, blogs, portfolios, and small-to-medium websites where the simplicity of file-based storage outweighs the need for complex database queries. Teams already familiar with Symfony components will find the architecture natural to extend.
The project maintains steady activity with regular updates addressing both maintenance and feature development. Development includes ongoing work to support current PHP versions and modernize dependencies. The codebase receives consistent attention to performance optimization and architectural improvements. Community contributions are actively integrated alongside core team development efforts.
