Voider Chat

Zero-knowledge encrypted ephemeral chat rooms.

Features

• End-to-end encryption - NaCl (TweetNaCl) for message encryption
• Real-time messaging - WebSocket-based communication
• Ephemeral rooms - Auto-delete when all participants leave
• Zero-knowledge - Server never sees your messages
• File sharing - Share encrypted files in chat
• No signup required - Just create and share the link

Tech Stack

• Frontend: React 19, Vite 7, Tailwind CSS 4, Framer Motion
• Backend: Cloudflare Workers with Durable Objects
• Encryption: TweetNaCl (NaCl), Web Crypto API

Development

npm install
npm run dev

API

The API uses Cloudflare Durable Objects for real-time WebSocket connections.

See /api/README.md for details.

Deployment

Frontend (Cloudflare Pages)

npm run build
wrangler pages deploy dist --project-name=voider-chat

API (Cloudflare Workers)

cd api
wrangler deploy

Cryptography

1. Create room: Generate NaCl keypair client-side
2. Join room: Exchange public keys via WebSocket
3. Send message: Encrypt with recipient's public key
4. All encryption happens in the browser

License

MIT License