Opening a Laravel project for the first time can feel like entering a large building without a map. Yet the structure is consistent across every project. Once you memorise what each main folder does, changing and customising source code becomes far more directed.
app/ — The Application's Brain
This is where the core logic lives. The sub-folders you touch most:
app/Models/— classes that represent database tables (e.g.User,Product).app/Http/Controllers/— controllers that receive requests and return views or data.app/Http/Middleware/— request filters, for example a login check.
routes/ — The Address Map
The file routes/web.php defines the URLs visitors can open and which controller handles each. When you want to know "where does this page come from", start here. APIs live separately in routes/api.php.
resources/views/ — The Presentation (Blade)
All .blade.php files live here. Blade is Laravel's template engine that mixes HTML with a little special syntax such as @foreach and {{ $variable }}. To change text or a page layout, this folder is your destination.
config/ — Detailed Settings
Contains configuration files such as config/app.php and config/database.php. Their values often read from .env. You rarely need to edit this folder directly, but it is good to know it is there.
database/ — Schema and Starter Data
database/migrations/— table blueprints; run withphp artisan migrate.database/seeders/— fill starter data such as an admin account.database/factories/— generate fake data for testing.
public/ — The Public Entry Point
Only this folder should be reachable directly from the internet. The file public/index.php is the entry point for every request. Built assets (CSS/JS) and public images also go here. On hosting, the document root must point to the public folder.
storage/ and bootstrap/cache/ — Writable Areas
Laravel writes logs, cache, and uploaded files to storage/. These two folders must be writable by the server; most 500 errors during deployment come from their permissions.
Important Files at the Root
.env— secret per-environment configuration.composer.json— list of PHP dependencies.artisan— Laravel's command-line tool.
With this map, instead of guessing you can head straight to the right folder: change the look in resources/views, change the flow in Controllers, and change the data structure in migrations.