ELI5: Explain Like I'm 5

Dropbox (service)

Dropbox is a service that helps you to save your files and documents on the internet. That way, you can access them from any device, such as your computer, phone, or tablet. Whenever you want to open one of your files, all you have to do is open your Dropbox app, and it will be there! Dropbox also backs up your files, which means all your files are safe and secure on the internet, so you don’t have to worry about losing them.