SimpleX Chat is a private and secure messenger that doesn't rely on user IDs, phone numbers, or usernames. It's designed for individuals seeking maximum privacy and security in their online communications. By utilizing a decentralized network architecture, SimpleX Chat ensures that user data remains protected and is not accessible to the service providers themselves.
SimpleX Chat combines the benefits of P2P and federated networks, providing better metadata privacy and reliable asynchronous message delivery. Unlike P2P networks, messages are sent via servers, and unlike federated networks, SimpleX relay servers do not store user profiles, contacts, or delivered messages.
SimpleX Chat employs multiple layers of encryption and content padding to protect user data. It supports post-quantum cryptography and has post-compromise security features, ensuring that even if a user's device is compromised, their communications remain secure.