CryptSheet Zero-Knowledge Collaborative Spreadsheet based on ChainPad
git clone <this repo> npm install npm install -g bower ## if necessary bower install ## copy config.js.dist to config.js and modify configuration (use your own mongodb instance) node ./server.js
CryptSheet is private not anonymous. Privacy protects your data, anonymity protects you. As such, it is possible for a collaborator on the pad to include some silly/ugly/nasty things in a CryptSheet such as an image which reveals your IP address when your browser automatically loads it or a script which plays Rick Asleys's greatest hits. It is acceptable for anyone who does not have the key to be able to change anything in the pad or add anything, even the server.
Still there are other low-lives in the world so using CryptSheet over HTTPS is probably a good idea.
This software is and will always be available under the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.