Session is a private messenger offering privacy, anonymity, and security. With end-to-end encryption, no phone numbers for sign-up, and decentralisation, Session is a messenger that truly keeps your messages private and secure. Session uses a powerful decentralised network of servers to route your messages, making it impossible for anyone to leak or sell your data. This network is made possible by Session's direct integration with Oxen Service Nodes — a set of distributed, decentralised, and Sybil-resistant nodes. These Service Nodes act as servers which store messages when users are offline, and a set of them enable onion routing functionality that obfuscates users' IP addresses. For a full understanding of how Session works, you can read the Session Whitepaper. Thanks to Session's private routing protocols, your messages are completely anonymous. No one ever knows who you're talking to, what you're saying, or even your IP address. Privacy is the default when you use Session. Every message is encrypted, every time. We take your privacy seriously — Session gives you a safe, private place to chat with your friends, family, or anyone in the world. - Fully anonymous account creation: No phone number or email is needed to create a Session ID - Decentralised server network: No data breaches, no central point of failure - No metadata logging: Session doesn't store, track, or log your messaging metadata - IP address protection: Your IP address is protected using a specialised onion routing protocol - Closed groups: Private, end-to-end encrypted group chats for up to 100 people - Secure attachments: Share voice snippets, photos, and files with Session's secure encryption and privacy protections - Free and open-source: Don't take our word for it — check Session's code yourself Session is free as in free speech, free as in free beer, and free of ads and trackers. Session is built and maintained by the OPTF, Australia's first privacy tech not-for-profit organisation. Take back your online privacy today — download Session. License GNU General Public License v3.0.