Nitro: Quantum Messenger

Nitro is a private messenger built for the post-quantum era.

Every message is end-to-end encrypted with a hybrid handshake that combines modern elliptic-curve cryptography with NIST post-quantum algorithms (ML-KEM-768 key encapsulation and ML-DSA-65 signatures), so your conversations stay private even against a future quantum adversary. The same protocol engine is shared across platforms and verified byte-for-byte against a reference implementation.

• Post-quantum end-to-end encryption on every message
• Your identity keys are generated on-device and never uploaded
• Forward secrecy and post-compromise security via a Double Ratchet
• Sealed sender — the server does not learn who is talking to whom
• Key Transparency: your contacts' keys are publicly auditable, so nobody can silently swap them

No ads. No trackers. Your address book is never uploaded.

Nitro is under active development.