ELI5: Explain Like I'm 5

Free software licence

A free software licence is a type of licence that allows you to use a piece of software without having to buy it. It means that you can download the software, install it on your computer, use it and make changes to it without having to ask anyone's permission or pay any money. This type of licence is usually used to encourage people to share their software with others, and it also helps software developers make sure their software is used by as many people as possible.