Cryptwire is peer-to-peer messaging: no server stores your chats, every conversation is encrypted with Double Ratchet and verified in person with anti-interception SAS emoji. On iPhone, iPad, Android and desktop.
The best encryption is useless if someone is in the middle. Cryptwire shows you, with 6 emoji, that no one is intercepting the conversation.
Every message gets a new key via the Double Ratchet (X3DH) protocol. Even if one key were compromised, the following ones stay secure: complete forward secrecy.
Six emoji generated from the key fingerprints. You compare them by voice or in person with your contact: if they match, the line is clean. No man-in-the-middle possible.
Messages travel over WebRTC data channels directly between devices. The signaling server only acts as a relay to start the connection, never to store it.
Burn-after-read: messages that self-destruct after being read. Attached files, photos and audio travel encrypted and stay only where you decide.
Your keys and history live in an encrypted IndexedDB vault on your device. No account, no email, no mandatory phone number.
The same app on iPhone, iPad, Android and desktop (Windows/Linux via Electron). The same contact, the same level of encryption, on every screen.
No central server routes your messages: they travel straight from one device to the other. Here's how that compares to traditional messaging apps.
On iPhone for fast chatting, on iPad to enjoy the conversation with more breathing room. Same interface, same encryption.
Three steps, no technical expertise. If the emoji match, the conversation is private.
From your key and your contact’s, Cryptwire derives a unique cryptographic fingerprint for the pair.
The fingerprint becomes six emoji, identical for both devices: no numbers to copy, no long codes.
You read them to your contact (in person or by phone). If they’re identical, the line is clean. Different? Someone is in the middle.
A single Cryptwire identity you can carry across phone, tablet and desktop.
PWA on Safari: installs like a native app, icon on home screen, offline support. No Mac required.
PWA · todayNative app via Capacitor, same WebRTC core, same Double Ratchet. APK installable directly.
CapacitorElectron desktop app, identical to the mobile app but with a large screen and keyboard. Same encrypted vault.
ElectronThe app is not public yet: we are testing it with a small group of testers. Leave your contact to join the alpha phase and try it first.
Native app (APK) for alpha testers. Public release will come after the testing phase.
Coming soon AlphaWeb app (PWA) for alpha testers. On iPhone/iPad via Safari, on desktop via browser. Closed to the public.
Coming soon AlphaThe native iPhone app will reach the App Store after alpha. In the meantime, testers can use the PWA.
Coming soon AlphaNo App Store or Mac needed. Safari installs Cryptwire as an app, with its own icon on the home screen.
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HIAdd to Home Screen. Confirm: Cryptwire will appear with its own icon and launch full screen like a native app.No account, no storage server, no ads. Just you and who you choose, encrypted end to end.
Want to test Cryptwire first? We are selecting a small group of testers. Leave your contact and we will reply with access.
Prefer to write directly? contact@cryptwire.ch