Post-quantum · ML-KEM-768 · ML-DSA-65 · Live now
End-to-end by default. Post-quantum in production. Your conversations stay on your device — by architecture, not by promise.
Signal-class cryptography on V1 (X3DH + Double Ratchet) — the proven baseline, on every conversation. No flag to flip, no upgrade tier.
Saj Protocol V2 — hybrid post-quantum stack: ML-KEM-768 key encapsulation + Triple Ratchet + Hybrid signatures (Ed25519 + ML-DSA-65). Live today — your messages survive the quantum-computing transition.
Server holds encrypted blobs only. No plaintext ever leaves your device unless you choose to share.
Share only the part of a message that matters — without revealing the rest. Built-in, no extra steps.
Sign up with email, hardware key, or anonymously. Your identity is your choice.
Find contacts without exposing your address book to the server.
Run the entire Saj Link stack inside your VPC. Federation across self-hosted instances.
30 audit-action types. GDPR data export and right-to-erasure built-in.
Free to start. Self-hostable on enterprise tier.