CipherNote

A private, zero-knowledge notepad that runs entirely in the browser.

Features

• AES-256-GCM encryption — your note is encrypted client-side before anything is stored; the plaintext never leaves your device
• HaveIBeenPwned check — passwords are screened against the HIBP breach database using the k-anonymity model (only the first 5 characters of a SHA-1 hash are sent; your actual password is never transmitted)
• localStorage only — no server, no accounts, no tracking in this alpha version

Tech Stack

• Vue 3 + TypeScript
• Vite
• Web Crypto API (native browser encryption)

Getting Started

npm install
npm run dev

Running Tests

npm test

License

MIT — see LICENSE