Listanize

With Listanize you can create free task lists without signing up. All your lists will be stored online, so you can access them from everywhere. Just share the URL of your list with your other devices to continue using your lists on the go. Or share them with your friends to work on a list together. We like to keep it simple, so no unnecessary features that you will never use. It's completely free and there is no sign up, so why don't give it a go?

Screenshots from Chrome Web Store