Ghost messaging.
Zero retention.
Onyx is a messaging network designed to forget you. The server sees an encrypted blob for nanoseconds, routes it to your friend, and immediately deletes all traces of it. No logs. No databases. Total silence.
Blind Relay Server
Traditional applications store your messages in giant cloud databases. Onyx uses a "Blind Router." The server's only job is to push encrypted data from Device A to Device B. It cannot read the payload, and it stores absolutely nothing.
No Phone Numbers
Tying your identity to a SIM card is a critical privacy risk. Onyx completely removes phone numbers from the equation. Your identity is a mathematical string that you own, separated entirely from your telecom provider.
True E2E Encryption
Every text, photo, and voice note is locked with AES-256 encryption before it ever leaves your phone. The cryptographic keys are stored locally on your device hardware. Only the intended recipient can decode it.
When you join Onyx, you aren't asked for a phone number. Instead, the application generates a unique Routing ID. This acts as your public username.
To talk to someone, you just need their 8-character ID. Behind the scenes, the network maps this ID to an encrypted token that tells the server exactly where to route the message, without ever knowing who you actually are.
ONYX CHAT is fully open source under the MIT licence. The entire Android client, the Vercel blind relay backend, and the deployment configuration are publicly available. Every cryptographic claim in this site can be independently verified by reading the code.
Built and maintained by Ankush Das (Dev) — developed entirely on a phone using AndroidIDE, with zero proprietary toolchains or closed infrastructure.
Networking & Infrastructure
- Serverless Vercel relay engine
- Retrofit networking layer
- FCM-based delivery pipeline
- WakeLock-backed background delivery
- Fallback notification sound engine
Identity & Presence
- Routing IDs
- QR handshakes
- Smart presence heartbeat engine
- Peer-to-peer profile sync
Messaging UX
- Replies
- Edit messages
- Delete for everyone
- Typing indicators
- Read receipts
- Emoji Kitchen reactions
- Smart feed rendering
Security
- Encrypted Google Drive vaults
- Automated sync scheduling
- Privacy toggles
- Ghost mode
- GIF integration
- Sticker engine
- Image & video payloads
- Voice memos
- File sharing
- Media encryption pipeline
- Encrypted group messaging
- WebRTC voice calls
- WebRTC video calls
- Ephemeral statuses
- Multi-device synchronization
- Desktop & web clients