A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.

The main purpose of a VPN is to allow users to have an internet connection without having to pay for it, by hiding the fact that they're using a VPN. This allows users to have the freedom to browse the internet without restrictions, which can be helpful if you're trying to access content that is restricted based on your location.

A VPN can also be used to protect yourself from hackers and other unauthorized users when you're connected to a public network, such as a Wi-Fi hotspot. It can also be used to unblock websites and other services that may be blocked in your region.

A VPN can also be used to unblock video and audio streams, which can be blocked based on the country you're in. It can also be used to hide your IP address, which is how your internet activity is tracked.