Laravel organizes an application by responsibility. The app directory contains application code such as models, controllers, middleware, jobs, policies, providers, and services. The routes directory contains route definitions, while resources contains Blade views and uncompiled frontend assets.

Configuration files are stored in config, and migrations, factories, and seeders live in database. Public is the web server document root. Bootstrap initializes the framework, storage holds logs and generated files, tests contains automated tests, and vendor contains Composer-managed dependencies that should generally not be edited directly.