What is the storage folder in Laravel?

The storage/ directory contains files generated by the framework: storage/app/ (user-uploaded files), storage/framework/ (cache, sessions, compiled views), and storage/logs/ (application log files). To make uploaded files publicly accessible, create a symbolic link: php artisan storage:link — this creates public/storage pointing to storage/app/public. Store files with the Storage facade: Storage::put("avatars/user.jpg", $fileContents) or Storage::disk("s3")->put(...). Laravel's filesystem abstraction (Flysystem) supports local, Amazon S3, Rackspace, SFTP, and other drivers — switch by changing the FILESYSTEM_DISK env variable, with no code changes needed.