Similar to this [0] from a few years ago.
That one also had some basic encryption included.
Some previous discussions[1,2] of that tool highlights that this can easily be abused for xss or distribution of illegal materials which you may not want to find yourself the focus of.
[0] https://davidpartson024.github.io/no_host/encryptedPageMaker...
[1] https://www.reddit.com/r/programming/comments/47gjbv/experim...
[2] https://www.reddit.com/r/InternetIsBeautiful/comments/4o76gn...