Duckist

What we do: Duckist.com makes it easy to share passwords and other secret messages and files. * You can generate one-time messages that self-destruct * Messages and files are encrypted on the frontend to ensure they are not even accessible to us * Sending secrets with duckist.com in e-mails/instant messengers protects them from potential attackers who would just see an expired link instead * Option to be installed on client's server in an internal network.