Crypto.cat Chat with privacy.
Private chat can be easy and accessible.
Cryptocat is a fun, accessible app for having encrypted chat with your friends, right in your browser and mobile phone. Everything is encrypted before it leaves your computer. Even the Cryptocat network itself can't read your messages.
"Simple and secure privacy protection
Cloudfogger encrypts your data on the local device before it gets uploaded to the cloud. That guarantees that Dropbox and others never get access to the content of your files."