A very nice project for Shamir secret backups:
Discussion
We are so happy that after months of development we could finally launch it for first users :) Be sure to try it out and give us any feedback!
We are going to publish our crypto in the coming days publicly, which our client utilizes to encrypt and decrypt files directly in your browser before it's sent to our server for further processing. This way, we have absolutely no idea what you are uploading there and that's how it's supposed to be! :)