BackWPup is a comprehensive WordPress plugin designed to enable users to back up their entire website, including the /wp-content/ directory, and store these backups on various external services such as Dropbox, S3, FTP, and more. Users can create a single backup in various formats such as .zip, tar, and tar.gz, and restore their websites with just a few clicks from the WordPress backend. The plugin also offers features like database backup, WordPress XML export, database optimization, plugin list generation, and more. While the free version provides substantial functionality, the premium BackWPup Pro version offers additional features like Amazon Glacier, Google Drive, OneDrive, and HiDrive backups, as well as encrypted backups and a standalone restore app, coupled with dedicated support. System requirements include at least WordPress 3.9 and PHP 7.2, with optimal use needing certain PHP extensions. Video tutorials by OSTraining are also available to help users navigate the plugin.