Change Name, Key, etc. For instructions on how to do things, click on each title below. For instructions on how to do things, click on each title below. To get instructions as you click buttons in PassLok, check Learn. PassLok locks text and files, and sets up secure real time chat sessions using strong end-to-end encryption.

Take privacy into your own hands. On the wake of the revelations, secure email providers start shutting down one after another. And on, and on, and on. Even if they play as fair as they claim.

No servers are involved and so nobody else has your private data or the key that decrypts it. SeeOnce is open-source and free, because we believe privacy is a basic human right. SeeOnce can open real-time session that include text, files, or even video. Connection is direct between computers or smartphones.

Simple, secure, free symmetric encryption for email and texting. URSA is based on the XSalsa20 stream cipher, by Bernstein et al. This modern, fast cipher has been extensively scrutinized by experts and no weakness has been found. Messages locked with URSA can be unlocked with PassLok. Its more powerful sibling, and vice-versa. This way you can learn to encrypt with URSA, and then graduate to the full range of tools available in PassLok. You think encryption is hard to use? .