You can easily build your own interface using the exposed [REST API](./rest-api.md). Anyway, SFTPGo also provides a basic built-in web interface that allows you to manage users, virtual folders, admins and connections.
If no admin user is found within the data provider, typically after the initial installation, SFTPGo will ask you to create the first admin. You can also pre-create an admin user by loading initial data or by enabling the `create_default_admin` configuration key. Please take a look [here](./full-configuration.md) for more details.