Joomla website backup extension - Akeeba Backup
Akeeba Backup is the award-winning full site backup component for Joomla! sites. Inside its releases you will find Akeeba Backup Core (the free version) and Akeeba Backup Professional (the subscription-based version with extra features), as well as documentation in PDF formathttps://www.akeebabackup.com/downloads/akeeba-backup.html
Akeeba Backup is a great tool for Joomla websites. It is easy to install, easy to use, and inexpensive. Plus, they offer Akeeba Backup video tutorials for easy learning.