Cryptgeon

A secure note and file sharing service with zero-knowledge encryption. Inspired by PrivNote — all content is end-to-end encrypted in the browser and the server never sees plaintext data.

What You Can Do After Deployment

1. Open your domain — Cryptgeon is ready immediately, no login or setup required
2. Share encrypted text — write a secret note, it gets encrypted before leaving your browser
3. Share encrypted files — upload files up to the configured size limit
4. Set view limits — notes can auto-delete after being viewed a set number of times
5. Set time limits — notes can auto-expire after a specified duration

Key Features

• Zero-knowledge end-to-end encryption (AES-256-GCM)
• Text and file sharing
• Auto-expiry by view count or time
• No accounts or login required
• Stateless — built-in memcached, no external database
• Lightweight and fast
• Clean, modern web interface

License

MIT — GitHub