⌁
Private messaging
Real-time conversations over WebSocket, with message history and end-to-end encryption.
A new way to stay private
Your conversations.
Your privacy.
NYX is a messenger in development, built around end-to-end encryption and thoughtful communication. Your private conversations should stay private.
Currently in development · Windows first · Android and Linux planned
Alex● online
Hey! Did you get my message?
Yes. Private and secure.
⌑ End-to-end encrypted✓
Made for conversations
Everything you need.
Nothing you don't.
A focused set of tools for everyday communication, with privacy built into the way messages are protected.
◎
Accounts that are yours
Sign up with email verification, choose a unique username, and make your profile your own.
↗
Friends, by choice
Find people by username and connect through friend requests. Your chat list is built around your friends.
⌕
Share files
Send files up to 20 MB. Media is encrypted with a separate key carried inside the encrypted message.
✎
Stay in control
Edit or delete your own messages. Keep your conversations the way you want them.
⌘
Built with Rust
NYX is being developed with Rust and a dedicated cryptographic implementation written in Dart.
Privacy is not an add-on
Designed to keep
messages yours.
NYX uses the Signal Protocol building blocks X3DH and Double Ratchet to establish and update message encryption keys between participants.
- End-to-end encryption for conversations
- Server stores ciphertext and public keys
- Files encrypted with a separate media key
- Cryptographic implementation written from scratch in Dart
NYX is under active development. The security design has not yet been presented as independently audited or certified.
Sender's deviceX3DH + Double Ratchet
↓ encrypted payload ↓
NYX serverCiphertext + public keys
↓ encrypted payload ↓
Recipient's deviceDecrypts locally
The journey ahead
Built step by step.
NYX is actively being developed. Here's the current direction — timelines will be shared when they're ready.
In development
Windows
The first desktop platform, with accounts, friends, messaging and encrypted file sharing.
Planned
Android
Bring private conversations to mobile devices.
Planned
Linux
A native desktop experience for Linux users.
FAQ
A few things worth knowing.
Is NYX available to download?
NYX is currently in development. Public downloads and release dates have not been announced.
What encryption does NYX use?
The current implementation uses Signal Protocol components: X3DH for key agreement and Double Ratchet for ongoing message key updates.
Can the NYX server read my messages?
The intended design is end-to-end encryption: the server stores ciphertext and public keys rather than message plaintext. Independent security review has not yet been announced.
Which platforms are planned?
Windows is the first platform. Android and Linux are planned.
Privacy should feel simple.
Follow the development of NYX Messenger.