CipherChat is the messenger you already know how to use — fast, fluid, everywhere — but every message is encrypted on your device. The server only ever sees ciphertext.
Everything you love about a modern messenger — with cryptography you can actually verify, not just take on faith.
No toggle, no "secret chat" mode to remember. Every conversation is protected by the Signal protocol — X3DH/PQXDH key agreement and the Double Ratchet — the moment you open it.
Messages sync the moment they're sent and stay live across every device you own. Pick up a thread on your phone, finish it on your laptop — seamlessly and in real time.
Compare a safety number to confirm exactly who you're talking to — no impersonation, no silent key swaps. If a contact's device changes, CipherChat tells you right away.
We keep the bare minimum needed to deliver your messages and nothing more. No advertising profiles, no behavioral tracking. We do not sell your data — there's no business model that depends on it.
In plain language: the lock and key live on your devices. The server is just a courier carrying sealed envelopes it can't open.
Your message is sealed with keys that exist only on your devices. The plaintext never touches our servers.
We relay and queue your sealed message so it arrives reliably. All we ever store is unreadable ciphertext.
Only your recipient's devices hold the keys to open it. The message is decrypted there — and nowhere else.
Keys ratchet forward with every message, so even if one key were ever exposed, past and future messages stay sealed. With ML-KEM, that protection extends to a future of quantum computers.
Every conversation has a unique safety number derived from both parties' keys. Compare it in person or over another channel and you've cryptographically confirmed there's no one in the middle.
If a contact reinstalls or adds a device, their keys change — and CipherChat surfaces a clear device-change alert so a swap can never happen silently.
We hold the minimum needed to run a reliable service. The content of your conversations is not part of it.
Account identifiers and basic connection info to deliver messages — not a profile of your life.
There's no ad network watching what you say, because we never built one.
Your information isn't a product. No selling, no renting, no data brokers.
The messages, calls, and media you send are sealed end-to-end. We can only store the locked version.
Get the messenger that feels like the one you already use — and keeps your conversations yours.