File synchronization, also known as file syncing, is the process of making sure that files stored in two or more different locations are kept up-to-date with each other. This is typically done through the use of software that compares files in different locations and copies any changes made to one file to the other location.
File syncing is useful for a number of reasons, such as creating backups of important files, sharing files between different devices or users, and ensuring that the most recent version of a file is always available. There are many different software applications and services available for file syncing, ranging from simple tools that synchronize files between two locations to more complex systems that can be used to synchronize files across multiple devices or even entire organizations.
