Netflix's new show Stranger Things is one of the biggest hits of the winter (we're big fans ourselves). Here's a neat tool that lets you communicate secret messages to all your friends from the "Upside Down".
The tool, from the web site Cockeyed, is simple and easy to use. All you have to do is type in the message you want to send, then hit submit. You'll get a link to the message that you can send to however you like.
Messages can pretty much be as long as you like, but there's no punctuation or a light for the letter "Z" so you'll have to make do without it. Try it out for yourself at the link below — just steer clear of the demogorgon.