FTP or File Transfer Protocol is how we get our designs onto the web. There are many, MANY programs that do this job (don’t believe me… Google that s***). There are even a number that do it free. Here are a few solid options you can download for use at home.
Mac or Windows
Cyberduck is my FTP of choice. Originally Mac only, it’s apparently now available for Windows as well.
Take care as some folks report you get ad spam if you don’t read the fine print and uncheck the right boxes.
Bare bones but easy to use.
Haven’t used it since I eschew the evil empire, but it’s got a good reputation.