MyChat
🔒 Blind Post Protocol

MyChat — Private by Design

An end-to-end encrypted messenger built on the Blind Post protocol. Messages are encrypted on your device before transmission — no server can ever read them. Your Ed25519 keypair is your identity.

iOS, macOS & Windows versions are in development. Stay tuned!

A

Alice

🔒 E2E

Hey! Did you get my file?
Yes! All encrypted 🔒
Amazing. No one can intercept?
Not even our servers 😄
Your key, your messages.

🔐 Messages encrypted with X25519 + AES-256-GCM

True End-to-End Encryption

Every message is encrypted with X25519 key exchange and AES-256-GCM on your device before transmission. Even if our servers were compromised, your conversations remain private.

No Phone Number Required

Your Ed25519 public key is your identity. No email, no phone number, no personal data needed to get started. Generate your keys and start chatting immediately.

Blind Post Protocol

Messages are stored as encrypted blobs on relay servers. Servers route data without knowing content, sender, or recipient — like dropping a sealed letter in a mailbox.

How It Works

1

Install & Generate Keys

An Ed25519 keypair is generated locally on your device. Your private key never leaves your device.

2

Share Your Public Key

Share your public key QR code with contacts. They can verify your identity cryptographically.

3

Chat Privately

Messages are E2E encrypted and relayed as opaque blobs. Only the intended recipient can decrypt them.

Server sees only encrypted blobs — zero knowledge of your conversations.

Download MyChat

Free. No account required.

Android

APK · Direct Download

Download

iOS

App Store · Coming Soon

macOS

DMG · Direct Download

Windows & Linux

Desktop · Coming Soon